Page 1 National Crane NBT60 Service Manual...
Page 2 WARNING California Proposition 65 Breathing diesel engine exhaust exposes you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. • Always start and operate the engine in a well-ventilated area. • If in an enclosed area, vent the exhaust to the outside.
Page 3 SERVICE MANUAL This Manual has been prepared for and is considered part of NBT60 Cranes This Manual is Divided into the following Sections: SECTION 1 INTRODUCTION SECTION 2 HYDRAULIC SYSTEM SECTION 3 ELECTRIC SYSTEM SECTION 4 BOOM MAINTENANCE SECTION 5...
Page 5: Table Of Contents
NBT60 SERVICE MANUAL TABLE OF CONTENTS SECTION 1 ..........Introduction General .
Page 6 TABLE OF CONTENTS NBT60 SERVICE MANUAL Installation ............2-16 A.
Page 7 NBT60 SERVICE MANUAL TABLE OF CONTENTS Maintenance ............4-2 Special Boom Inspection .
Page 8 TABLE OF CONTENTS NBT60 SERVICE MANUAL Swing Brake............6-1 Swing Gearbox and Brake.
Page 9 NBT60 Crane Operating Speeds ........
Page 10 TABLE OF CONTENTS NBT60 SERVICE MANUAL THIS PAGE BLANK TOC-6...
Page 11: Section Contents
If you feel you need factory assistance, please This manual has been compiled to assist you in properly ask the distributor’s service management to coordinate the operating and maintaining your Model NBT60 National contact on your behalf. Crane (Figure 1-1).
Page 12: Basic Nomenclature
INTRODUCTION NBT60 SERVICE MANUAL Basic Nomenclature The nomenclature used to describe parts of a National Crane are described in Figure 1-2. This nomenclature is used throughout this manual. 8261-4 FIGURE 1-1 Published 1-17-2019 Control #492-04...
Page 13 NBT60 SERVICE MANUAL INTRODUCTION FIGURE 1-2 8263-4 7449-2 7471-2 Item Component Cab Crane Controls Cab-Tilt RCL, Display Screen 7450 Rated Capacity Limiter (RCL) Reel Boom Item Component Ground Outrigger Control Boom Nose Boom Rest Hydraulic Pump Lift Cylinder Cab Outrigger Control...
Page 14: General Maintenance
INTRODUCTION NBT60 SERVICE MANUAL GENERAL MAINTENANCE All supporting members (chains and cables) need to be parallel to each other and as near perpendicular as possible The suggestions listed below are helpful in analyzing and to the top of the object being lifted.
Page 15: Bearings
NBT60 SERVICE MANUAL INTRODUCTION Bearings driver or a bar with a smooth flat end. If a sleeve bearing has an oil hole, align it with the oil hole in the mating part. Antifriction Bearings Gaskets When an antifriction bearing is removed, cover it to keep out dirt and abrasives.
Page 16: Electrical
INTRODUCTION NBT60 SERVICE MANUAL Keep the System Clean with fine sandpaper and coat the terminals dielectric grease. Do not use a non-dielectric grease. When removing components of a hydraulic system, cover all Remove the batteries If the machine is not used for an openings on both the component and the crane.
Page 17: Fatigue Of Welded Structures
Torque values should correspond to the type of bolts, capscrews, studs, and nuts being used. DANGER The torque tables are provided by Manitowoc for reference when performing maintenance. Loctite ® type adhesives contain chemicals that may be harmful if misused. Read and follow the instructions on Use of proper torque values is extremely important.
Page 18 INTRODUCTION NBT60 SERVICE MANUAL When referring to the applicable torque charts, use values as When using step wrenches, calculated wrench settings are close as possible to the torque values shown to allow for valid only when the following conditions are met: wrench calibration tolerance.
Page 19 NBT60 SERVICE MANUAL INTRODUCTION Table 1-1 Inch Series with Coarse Threads (UNC) – Zinc Flake Coated Nominal Size, Threads per Torque (ft/lb) Inch, and Series Grade Maximum Nominal Minimum Designation 1/4-20 UNC 13.5 13.2 12.8 5/16-18 UNC 19.1 18.6 18.1 24.0...
Page 20 INTRODUCTION NBT60 SERVICE MANUAL Table 1-2 Inch Series with Fine Threads (UNF) – Zinc Flake Coated Nominal Size, Threads per Torque (ft/lb) Inch, and Series Grade Maximum Nominal Minimum Designation 1/4-28 UNF 10.6 10.4 10.1 15.0 14.6 14.2 5/16-24 UNF 21.1...
Page 21 NBT60 SERVICE MANUAL INTRODUCTION Nominal Size, Threads per Torque (Nm) Property Inch, and Series Class Maximum Nominal Minimum Designation M6x1.0 10.9 12.2 11.9 11.6 12.9 14.3 13.9 13.6 20.2 19.7 19.2 M8x1.25 10.9 29.6 28.9 28.2 12.9 34.7 33.8 33.0 40.0...
Page 22 INTRODUCTION NBT60 SERVICE MANUAL Nominal Size, Threads per Torque (Nm) Property Inch, and Series Class Maximum Nominal Minimum Designation 2089.8 2037.6 1985.3 M36x4 10.9 2976.4 2902.0 2827.6 12.9 3483.0 3395.9 3308.9 Table 1-4 Metric Series with Fine Threads – Zinc Flake Coated...
Page 23 NBT60 SERVICE MANUAL INTRODUCTION Nominal Size, Threads per Torque (Nm) Property Inch, and Series Class Maximum Nominal Minimum Designation 386.0 376.3 366.7 M20x1.5 10.9 549.7 535.9 522.2 12.9 643.3 627.2 611.1 520.8 507.8 494.8 M22x1.5 10.9 741.7 723.2 704.7 12.9 868.0...
Page 24 INTRODUCTION NBT60 SERVICE MANUAL Table 1-5 Metric Series Screws of STAINLESS STEEL A2-70/A4-70 with Coarse Threads Size Torque (Nm) M2.5x0.45 M3x0.5 M4x0.7 M5x0.8 M6x1 M8x1.25 M10x1.5 Torque Values for fasteners with lubrication these torque values result in an 80% utilization of the yield strength.
Page 25 NBT60 SERVICE MANUAL INTRODUCTION Table 1-7 Inch Series Bearing Bolts – Untreated (black finish) Nominal Size, Threads per Torque (ft/lb) Inch, and Series Grade Maximum Nominal Minimum Designation 5/8-11 UNC 5/8-18 UNF 3/4-10 UNC 7/8-9 UNC 1-8 UNC 1 1/4-7 UNC...
Page 26 INTRODUCTION NBT60 SERVICE MANUAL Table 1-9 Inch Series with Coarse Threads (UNC) – Untreated (black finish) Torque (ft/lb) Size Grade Maximum Nominal Minimum 1/4-20 12.5 11.5 5/16-18 3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 259.5 3/4-10 7/8-9 1 1/8-7 1342 1288 1234...
Page 27 NBT60 SERVICE MANUAL INTRODUCTION Inch Series with Fine Threads (UNF) – Untreated (black finish) Table 1-10 Torque (ft/lb) Size Grade Maximum Nominal Minimum 1/4-28 14.5 13.5 5/16-24 3/8-24 7/16-20 84.5 1/2-20 9/16-18 174.5 5/8-18 299.5 3/4-16 439.5 7/8-14 1-12 1009 644.5...
Page 28 INTRODUCTION NBT60 SERVICE MANUAL Table 1-11 Metric Series with Coarse Threads – Untreated (black finish) Torque (Nm) Property Size Class Maximum Nominal Minimum M4x0.7 10.9 12.9 M5x0.8 10.9 12.9 10.5 10.5 M6x1 10.9 12.9 M8x1.25 10.9 36.5 12.9 43.5 M10x1.5 10.9...
Page 29 NBT60 SERVICE MANUAL INTRODUCTION Torque (Nm) Property Size Class Maximum Nominal Minimum 1134 1090 1046 M27x3 10.9 1591 1530 1469 12.9 1910 1836.5 1763 1538 1479 1420 M30x3.5 10.9 2163 2080 1997 12.9 2595 2495 2395 2681 2578.5 2476 M36x4 10.9...
Page 30: Weld Studs
INTRODUCTION NBT60 SERVICE MANUAL Torque (Nm) Property Size Class Maximum Nominal Minimum 331.5 M18x1.5 10.9 12.9 M20X1 10.9 667.5 12.9 464.5 M20x1.5 10.9 12.9 M22x1.5 10.9 888.5 12.9 1111 1068 1025 803.5 M24x2 10.9 1176 1130.5 1085 12.9 1410 1356...
Page 31: Special Boom Inspection
Crane may be equipped with synthetic hoist rope or wire ANSI/ASME B30.5, federal regulations, and National rope. Hoist rope may be purchased through Manitowoc Manitowoc specifications. The inspection interval shall be Crane Care.
Page 32: Recommendations For Servicing Wire Rope
National Consensus Standard from Manitowoc Crane Care. Do not build lengths from a s r e f e r e n c e d b y F e d e r a l G o v e r n m e n t A g e n c i e s .
Page 33: Boom Extension And Retraction Cables
Consensus Standard as referenced by Federal Government reassembly. Use this inspection to monitor degradation and Agencies and Manitowoc Crane Care recommendations to identify damage that requires wire rope replacement or help determine when wire rope needs to be replaced. Wire...
Page 34: Seizing Wire Rope
INTRODUCTION NBT60 SERVICE MANUAL rope shall be taken out of service when any of the following • Manitowoc recommends that boom extension cables be conditions exist: replaced every seven (7) years. • In running ropes, six randomly distributed broken wires...
Page 35: Synthetic Hoist Rope
NOTE: Non-preformed wire rope should have two seizings refer to K100™ Synthetic Crane Hoist Line Manual, P/N located on each side of the cut (Figure 1-9). 9828100734 available by contacting Manitowoc Crane Care. National Crane 1-25 Published 1-17-2019 Control #492-04...
Page 36 INTRODUCTION NBT60 SERVICE MANUAL THIS PAGE BLANK 1-26 Published 1-17-2019 Control #492-04...
Page 37: Section Contents
NBT60 SERVICE MANUAL HYDRAULIC SYSTEM SECTION 2 HYDRAULIC SYSTEM SECTION CONTENTS Description ....... 2-1 Hydraulic System Setup Procedure.
Page 38 HYDRAULIC SYSTEM NBT60 SERVICE MANUAL Remove the reservoir drain plug. Allow about three 10. Disconnect the return lines from a pair of outrigger jack minutes after hydraulic oil stops flowing from the drain cylinders and activate the cylinders to their maximum port for the side walls to drain.
Page 39: Description
NBT60 SERVICE MANUAL HYDRAULIC SYSTEM HYDRAULIC SYMBOLS Description Symbol Description Symbol Hydraulic Reservoir - Stores, cools, and Filter - Removes contamination from cleans machines hydraulic fluid supply. hydraulic fluid. Hydraulic Return Lines - Terminated at (1) below fluid level (2) above fluid level.
Page 40 HYDRAULIC SYSTEM NBT60 SERVICE MANUAL Description Symbol Description Symbol Single Acting Cylinder - Extended Manually Operated - Valve shifted hydraulically and retracted with a spring. manually with check to allow flow back to tank. Double Acting Cylinder - Extended and retracted hydraulically.
Page 41: Removing Air From Hydraulic System
This action should return any entrapped air to the is being performed need to be replaced. Refer to the reservoir where it can be removed by the internal Manitowoc Parts Catalog for proper replacement parts. baffles. Directional Control Valve (DCV)
Page 42 If any of the above conditions exist, evaluate hose the hydraulic system filter is still serviceable. assemblies for correction or replacement. For replacement of hose assemblies, refer to your Manitowoc Crane Care Binding Spools Parts Manual. Some of the most common causes for stiff spool movement...
Page 43: Supply Pressure And Return Circuit
NBT60 SERVICE MANUAL HYDRAULIC SYSTEM SUPPLY PRESSURE AND RETURN CIRCUIT A magnetized drain plug in the bottom of the reservoir collects metal particles from the hydraulic oil if it becomes Description contaminated. A 10 micron filter (19, (Figure 2-2)) is located on the top,...
Page 44: Maintenance
HYDRAULIC SYSTEM NBT60 SERVICE MANUAL FIGURE 2-1 7562-18 7562-11 (Figure 2-1) Item List Item Component Item Component Hydraulic Reservoir Thermometer-Temperature Hydraulic Oil Level Gauge-Sight Magnetic Tank Drain Pressure Gauge (Vacuum) Filter-Suction Breather-Filler Cap Pump Suction Hose (to Swivel) Access Cover...
Page 45: Troubleshooting Chart
NBT60 SERVICE MANUAL HYDRAULIC SYSTEM Troubleshooting Chart CONDITION ITEM POSSIBLE CAUSE CORRECTIVE ACTION Insufficient hydraulic fluid causes Check fluid level in reservoir. Fill the reservoir to proper level. cavitation. Air in system causes noisy, Purge air and tighten fittings. Check for air in system.
Page 46 HYDRAULIC SYSTEM NBT60 SERVICE MANUAL Troubleshooting Chart (Continued) CONDITION ITEM POSSIBLE CAUSE CORRECTIVE ACTION Insufficient volume of hydraulic Fill reservoir to proper level. Verify Check fluid level in reservoir. fluid will not meet cooling proper size of reservoir. demands of system.
Page 47 NBT60 SERVICE MANUAL HYDRAULIC SYSTEM Troubleshooting Chart (Continued) CONDITION ITEM POSSIBLE CAUSE CORRECTIVE ACTION Activate pressure compensator Air in system causes erratic allowing system to bleed air. Check for air in system. operation. Check inlet line for leaks and eliminate source of air ingression.
Page 48: Hydraulic Filter Replacement
HYDRAULIC SYSTEM NBT60 SERVICE MANUAL Troubleshooting Chart (Continued) CONDITION ITEM POSSIBLE CAUSE CORRECTIVE ACTION Low temperature increases Allow system to warm up before Check fluid temperature. viscosity. High fluid viscosity operating. causes high inlet vacuum. High inlet Vacuum Blocked or restricted inlet Inspect inlet screen.
Page 49 NBT60 SERVICE MANUAL HYDRAULIC SYSTEM 7732-2 7732-1 7731 Filter - Suction Filter - Return FIGURE 2-2 Figure2-2 Item List Item Component Item Component Body - Filter Gasket Valve - Shutoff O-ring Gauge O-ring Seal Washer Magnet Capscrew Hand wheel - Shutoff Assembly...
Page 50: Hydraulic Oil Cooler
HYDRAULIC SYSTEM NBT60 SERVICE MANUAL HYDRAULIC OIL COOLER (Figure 2-3) Item List Item Description Description Oil Cooler The hydraulic oil cooler is installed at the rear of the turret Outlet frame (Figure 2-3). The oil cooler return circuit is in parallel...
Page 51: Hydraulic Pump
NBT60 SERVICE MANUAL HYDRAULIC SYSTEM HYDRAULIC PUMP 7562-7 FIGURE 2-4 7562-6 (Figure 2-4) Item List for lubrication and cooling. Case drain ports are provided to return this fluid to the reservoir. Item Description The volume of fluid displaced into the system circuit is Pump Manifold controlled by the angle of the swashplate.
Page 52: Removal
HYDRAULIC SYSTEM NBT60 SERVICE MANUAL • An adjustable maximum setting by the pressure Bolt the pump to the PTO with the pump mounting compensator (PC) [3], (Figure 2-5) section of the pump flange. control. Bolt the pump rear mounting bracket to the truck •...
Page 53 NBT60 SERVICE MANUAL HYDRAULIC SYSTEM LSRV Pressure Swing Pressure Main Relief FIGURE 2-6 NOTE: Pressure at idle should be in the 52 to 55 bar (750 12. Check/adjust main relief valve pressure; see C. Main to 800 psi) range. Relief Pressure Setting, page 2-18.
Page 54: Pump Margin Pressure Setting
HYDRAULIC SYSTEM NBT60 SERVICE MANUAL B. Pump Margin Pressure Setting Load Sense Load Sense Use (Table 2-3) to verify nominal setting and allowable Locknut Adjustment tolerance. Displacement Screw Limiter Adjuster To check the margin pressure, there are two pressures that will be set as the crane’s swing circuit requires 28 bar...
Page 55: Setting Maximum Pump Pressure
NBT60 SERVICE MANUAL HYDRAULIC SYSTEM (Figure 2-9). Loosen M8 locknut and use a 4mm allen wrench to adjust the setting. Turning clockwise increases the setting and each turn gains 100 bar Hoist Brake (1450 psi). Increase the pressure compensator (PC) setting until 345 bar (5000 psi) is reached on the gauge.
Page 56 HYDRAULIC SYSTEM NBT60 SERVICE MANUAL NOTE: There are two methods for setting the LSRV To Set the LSRV Pressure pressure. Install a 345 bar (5000 psi) gauge at the pump pressure Method #1: Leave the main hoist up/down hoses gauge port (GP2) on the DCV (Figure 2-6).
Page 57: Hydraulic System Setup Procedure
NBT60 SERVICE MANUAL HYDRAULIC SYSTEM HYDRAULIC SYSTEM SETUP PROCEDURE Pressure Settings Table 2-3 Pressure Tolerance 1:Guage Port Label (GPX) Hydraulic Circuit bar (PSI) bar (PSI) 2: Location GP2 @ Directional Control Valve Hoist Holding Valve 322 (4663) -0/+3 (-0/+50) Load Sense Relief Valve...
Page 58: Getting Started
HYDRAULIC SYSTEM NBT60 SERVICE MANUAL Pressure Tolerance 1:Guage Port Label (GPX) Hydraulic Circuit bar (PSI) bar (PSI) 2: Location GPA @ Front O/R Manifold Outrigger - Retract 127.6 (1850) -0/+14 (-0/+200) Pump Manifold Relief Valve Front Jack Extend (Optional) 34 (500)
Page 59: Hoists
NBT60 SERVICE MANUAL HYDRAULIC SYSTEM B. Hoists Uninstall gauge and re-torque all connections. • These functions are limited by the maximum load sense E. Telescope Extend relief valve (LSRV) setting. • The Telescope Extend function has dual shock valves in •...
Page 60 HYDRAULIC SYSTEM NBT60 SERVICE MANUAL Swing CCW Shock Valve LS Gauge Pilot/BR Relief Valve (#3) Swing CCW LSR Valve (Plastic Cap) Boom Up Shock Valve Tele Retract Shock Valve Swing (Qty 2) Mechanical Override Cab A/C Relief Valve (Hex) Boom Down...
Page 61: Swing Clockwise/Counter Clockwise
NBT60 SERVICE MANUAL HYDRAULIC SYSTEM G. Swing Clockwise/Counter Clockwise Uninstall gauge and re-torque all connections. • Swing clockwise/counter clockwise each have a single H. Swing Backpressure shock valve in the valve section that has a fixed This backpressure should have been set at pump a d j u s t m e n t o f 2 1 0 b a r ( 3 0 4 5 p s i ) a s s h o w n i n startup.
Page 62: Swing Brake Release
HYDRAULIC SYSTEM NBT60 SERVICE MANUAL K. Swing Brake Release setting of 60 psi (4 bar) as shown in (Figure 2-12) (Gearbox Coolant Relief Valve #13). (Shared Relief with Pilot Supply) This can be adjusted by loosening the ¾ in. locknut and The Swing Brake Release circuit has a single relief valve using a 5/16”...
Page 63: Counterweight Removal Cylinders
NBT60 SERVICE MANUAL HYDRAULIC SYSTEM continue to hold function switch while monitoring In order to check this setting: pressure reading at gauge. Install a 345 bar (5000 psi) minimum gauge in the Use (Table 2-3) to verify nominal setting and GP2 gauge port on the directional control valve allowable tolerance.
Page 64: Single Front Outrigger (Sfo) - Optional
HYDRAULIC SYSTEM NBT60 SERVICE MANUAL Single Front Outrigger (SFO) - Optional Shutdown the engine, remove the gauge and cap, and reconnect the SFO hydraulic lines. Disconnect the single front outrigger (SFO) extend and retract lines (Figure 2-18). Cap the retract line and install a gauge in the extend line.
Page 65: Valves
NBT60 SERVICE MANUAL HYDRAULIC SYSTEM VALVES valves, the circuit they are used in, and their physical location, refer to Table 2-5. The description of each valve General given here is for the valve itself. For information on how each valve functions in the individual circuits, refer to the This subsection provides descriptive information for all the description and operation procedures of that circuit.
Page 66 HYDRAULIC SYSTEM NBT60 SERVICE MANUAL Directional Control Valve (DCV) Crane Front Crane Rear 7713-1 7713-2 FIGURE 2-20 Item Description Item Description MCD Port - Motor Case Drain A/C Enable Solenoid Valve DR1 Port - Reservoir Drain FDCB-LAN 120.6 bar (1750 psi)@36.3 lpm(8 gpm)
Page 67: Removal
NBT60 SERVICE MANUAL HYDRAULIC SYSTEM Removal OUTRIGGER MANIFOLDS Tag and disconnect the hydraulic and electrical lines The outrigger circuits are controlled by two manifolds located from the valve. near the front and rear outrigger boxes. The front manifold contains the extend/retract valve for front and rear Plug the lines and cap ports.
Page 68 HYDRAULIC SYSTEM NBT60 SERVICE MANUAL THIS PAGE BLANK 2-32 Published 1-17-2019 Control #492-04...
Page 69: Jump Starting The Crane
NBT60 SERVICE MANUAL ELECTRIC SYSTEM SECTION 3 ELECTRIC SYSTEM SECTION CONTENTS Description ....... 3-1 Rated Capacity Limiter (RCL) System Description.
Page 70: Maintenance
ELECTRIC SYSTEM NBT60 SERVICE MANUAL MAINTENANCE Logged Fault Box (B) - Logged faults are not currently active, use the up/down arrows to scroll through the General codes. The crane control system will display up to 20 of the Electrical system maintenance includes troubleshooting and most recent logged faults or errors in the crane and RCL replacement of damaged components.
Page 71: Ignition Switch
NBT60 SERVICE MANUAL ELECTRIC SYSTEM RCL and Anti-two Block (A2B) System they are crimped when the pin or socket is inserted in the plug or receptacle. Add a short length of the same size wire Description to the short wire by crimp, splice or solder. Use heat...
Page 72: Rcl Communication Overview
ELECTRIC SYSTEM NBT60 SERVICE MANUAL 7569-2 7569-2 FIGURE 3-2 7569-3 RCL Communication Overview message is intended responds to the transmission. All other nodes ignore the message. The RCL needs to communicate with the various sensors, switches, and transducers on the crane in order to perform 120 ohm the RCL functions.
Page 73: Cab Module, Fuse, Relay Panel
Manitowoc Crane Care recommends you have as part of your service tool kit inventory the Orchestra (CAN-Link) service tool kit for the NBT60. The software will allow you to see in real time the status of all inputs or outputs signals on the system, and it will allow you to detect any errors on input or output.
Page 74 ELECTRIC SYSTEM NBT60 SERVICE MANUAL 8259-1 8259-2 FIGURE 3-5 Published 1-17-2019 Control #492-04...
Page 75 NBT60 SERVICE MANUAL ELECTRIC SYSTEM Figure 3-5 Item List Item Component Item Component Cab - C Access Panel Cab - B Harness (Brown) Fuse and Relay Cab - A Harness (Green) Buzzer Alarm S/S Harness B (Black) RCL Master Key Switch...
Page 76: Directional Control Valve
ELECTRIC SYSTEM NBT60 SERVICE MANUAL DIRECTIONAL CONTROL VALVE All crane functions are controlled by the directional control valve (1, Figure 3-6) located in the turret. The solenoid valves are identified in Figure 3-7. FIGURE 3-6 Published 1-17-2019 Control #492-04...
Page 77: Directional Control Valve (Dcv) Solenoids
The solenoids on the directional control valve are used to and Figure 3-9) are not serviceable; contact control the mode of operation of the associated valve. Manitowoc Crane Care Customer Service with any service or repair questions about the module. OUTRIGGER MANIFOLDS...
Page 78 ELECTRIC SYSTEM NBT60 SERVICE MANUAL The solenoids on the front outrigger manifold provide the • Solenoids (2), (3) and (10) (11) control the front outrigger following functions: components. See Figure 3-8 for solenoid identification. • The single front outrigger (SFO) solenoid (4) (if •...
Page 79: Rear Outrigger Manifold
NBT60 SERVICE MANUAL ELECTRIC SYSTEM Rear Outrigger Manifold • The lower rear modules #1 and #2 (6) are connected to the lower frame main wiring harness (5) and provide The solenoids on the rear outrigger manifold control the rear outrigger functional data to the main server module.
Page 80 ELECTRIC SYSTEM NBT60 SERVICE MANUAL THIS PAGE BLANK 3-12 Published 1-17-2019 Control #492-04...
Page 81: Theory Of Operation
NBT60 SERVICE MANUAL BOOM MAINTENANCE SECTION 4 BOOM MAINTENANCE SECTION CONTENTS Theory of operation ......4-1 Top, Rear Wear Pads ..... 4-24 Inner Side Pads .
Page 82: Special Boom Inspection
BOOM MAINTENANCE NBT60 SERVICE MANUAL 1/2/3 EXTEND 2/3/4 EXTEND 3/4/5 EXTEND TELE 4 BASE STAGE TELE 1 STAGE TELE 2 STAGE TELE 3 STAGE STAGE 3/2/1 RETRACT 4/3/2 RETRACT 5/4/3 RETRACT FIGURE 4-1 Reference Figure 4-1, Figure 4-2, Figure 4-4, and Figure 4-5...
Page 83: Boom Disassembly
NBT60 SERVICE MANUAL BOOM MAINTENANCE Remove the capscrew and locknut securing the upper lift the base section. Leave the cable ends draped inside cylinder shaft to the side of the attachment fitting on the the boom. boom. Tag and remove cable guides (21), plates and attaching 10.
Page 84 BOOM MAINTENANCE NBT60 SERVICE MANUAL Remove cylinder trunnion attaching bolts (65) and 12. Tag and remove cable protectors (156) and loosen washer (26) from base of Tele 1 (2) section. Trunnion adjusting nuts (10), remove capscrews (69) which retain (64) will remain on cylinder until later in disassembly.
Page 85: Additional Maintenance, Disassembled Boom
NBT60 SERVICE MANUAL BOOM MAINTENANCE Additional Maintenance, Disassembled Tele 4 Section Disassembly Boom Attach a sling to the tip of Tele 4 (5) section and pull Tele 4 section out of Tele 3 section approximately Clean all sections and inspect for wear, dents, bent or 152mm (6 ft).
Page 86 BOOM MAINTENANCE NBT60 SERVICE MANUAL NOTE: The orientation of plugged fitting on port block is facing toward the top when assembled. WARNING Tele 4 Section Assembly Ensure the lifting device is capable of supporting the Assemble and install sheaves (124) and bearings (123) as boom assembly.
Page 87 NBT60 SERVICE MANUAL BOOM MAINTENANCE stow the retract cables inside rear of Tele 4 boom to Route 4/3/2 single retract cables (118) through lower prevent damage to cables. openings at bottom base of Tele 3 (4) section and route towards tip of boom between bottom of Tele 4 and Tele 3 Install wear pad (43) and shim (44) with capscrews (25), sections booms.
Page 88 BOOM MAINTENANCE NBT60 SERVICE MANUAL NOTE: Use caution while lowering cylinder to prevent Install (4) side wear pads (86), shims (84, 85) with damage to cable retaining rollers (110). capscrews (173) or as pads were originally removed and tagged. Refer to “Boom Calibration” on page 24. Apply multipurpose grease to all wear pads and all wear surfaces.
Page 89 NBT60 SERVICE MANUAL BOOM MAINTENANCE and tighten locking nuts. Refer to “Boom Cable section. Center the section and turn adjusting cam plate Tensioning” on page 19. to adjust wear pads according to the calibration instructions. Refer to “Boom Calibration” on page 24.
Page 90 BOOM MAINTENANCE NBT60 SERVICE MANUAL all wear pads and all wear surfaces. See Lubrication, Align cylinder port block with mounting anchor at rear of page 8-1. base section and install pins (28) with flatwashers (163), flatwashers (29), lockwashers (30) and capscrews (31).
Page 91 NBT60 SERVICE MANUAL BOOM MAINTENANCE Base Section 8308-2 FIGURE 4-4 8308-3 National Crane 4-11 Published 1-17-2019 Control #492-04...
Page 92 BOOM MAINTENANCE NBT60 SERVICE MANUAL Tele 1 Section 8308-6 To base of Tele 3 FIGURE 4-4 continued 8308-4 4-12 Published 1-17-2019 Control #492-04...
Page 93 NBT60 SERVICE MANUAL BOOM MAINTENANCE Tele 2 Section Note: Plug orientation to top 8308-4 FIGURE 4-4 continued National Crane 4-13 Published 1-17-2019 Control #492-04...
Page 94 BOOM MAINTENANCE NBT60 SERVICE MANUAL Tele 3 Section 8308-7 8308-8 FIGURE 4-4 continued 4-14 Published 1-17-2019 Control #492-04...
Page 95 NBT60 SERVICE MANUAL BOOM MAINTENANCE Tele 4 Section 125 122 8308-9 123 122 Section of Tele 3 is removed for clarity FIGURE 4-4 continued 8308-1 National Crane 4-15 Published 1-17-2019 Control #492-04...
Page 96 BOOM MAINTENANCE NBT60 SERVICE MANUAL 8308-10 8308-13 8308-11 8308-14 FIGURE 4-4 continued 4-16 Published 1-17-2019 Control #492-04...
Page 97 NBT60 SERVICE MANUAL BOOM MAINTENANCE Cable routed to tip of Tele 2 8308-19 8308-20 Cable routed 8308-17 to tip of Tele 1 Cable routed to base of Tele 4 8308-21 Cable routed 8308-18 to tip of Base Cable routed to...
Page 98 BOOM MAINTENANCE NBT60 SERVICE MANUAL Table 4-1 Item Description Item Description Sheave - 3 groove Base Section Shaft Tele 1 Section Retract Cable Tele 2 Section Thrust Washer Tele 3 Section Guard Tele 4 Section Wear Pad Tele Cylinder 2mm Side Pad...
Page 99: Boom Cable Tensioning
NBT60 SERVICE MANUAL BOOM MAINTENANCE Item Description Item Description Wear Pad Hex Head Capscrew M10x30 Sheave Bracket Bushing Cable Protector Wear Plug Cable Protector Sheave Pin External Wear Pad Flat Head Capscrew M8x14 Socket Head Capscrew- M10 Grease Fitting Adapter, Swivel...
Page 100: Cable Tension Sequence
BOOM MAINTENANCE NBT60 SERVICE MANUAL When tightening/loosening the first (adjustment) nuts on Measure the extension gaps between each boom cables, secure cable using the wrench flats at the front of the section and scribed line and note values. cable ends to prevent cable twist. Excess twisting of cables Retract boom so that the scribed lines are exposed by can cause premature failure.
Page 101: Section Boom W/ 2 Stage Cylinder Cable Positioning
NBT60 SERVICE MANUAL BOOM MAINTENANCE 5 - Section Boom w/ 2 Stage Cylinder Cable Positioning 3/4/5 EXTEND 2/3/4 EXTEND 1/2/3 EXTEND 8860-1 3/2/1 RETRACT 4/3/2 RETRACT 5/4/3 RETRACT FIGURE 4-6 Cable Tightening Sequence 5 Section Boom with Two Retraction Stage Extend Cylinder Measure the retraction gaps between the first and second section and the second and third section.
Page 102 BOOM MAINTENANCE NBT60 SERVICE MANUAL The fourth section should have moved out. Tighten the 345 extend cable located at the back top of the third section the difference in the extension gap Tightening until the extension gap between the third and measurements.
Page 103: Cable Retention
NBT60 SERVICE MANUAL BOOM MAINTENANCE Cable Retention OPTION 1 OPTION 2 8859-1 8859-2 FIGURE 4-7 After the cable adjustment procedure is completed for the Cable Retention Hardware entire boom assembly. The second (torqued) nut must be installed on all retract and extend cables.
Page 104: Boom Calibration
BOOM MAINTENANCE NBT60 SERVICE MANUAL BOOM CALIBRATION TORQUE VALUES for Second Nut: Inch Series with Coarse Threads (UNC) Minimum INSIDE OUTSIDE Cable end TORQUE Nut Type Thread Size Strength ft lbf GRADE Hex Jam 1/2-13 SAE 2 (HALF) Hex Jam...
Page 105: Inner Side Pads
NBT60 SERVICE MANUAL BOOM MAINTENANCE Measure the thickness of the wear pads and record (twp). FIGURE 4-13 Subtract the outside width (W ) of the inner section and the thickness of the two pads (twp) from the inside width of the outer section (W ).
Page 106 BOOM MAINTENANCE NBT60 SERVICE MANUAL Subtract the largest outside height (H ) of the inner section and the thickness of the top pad and lower pad (twp) from the inside height of the outer section (H ). Add shims as required [each shim is 1.5 (0.06) thick] to tighten the pads so that there is 1.5 mm - 3.4 mm (0.06 -...
Page 107: Multi-Stage Extend Cylinder
NBT60 SERVICE MANUAL BOOM MAINTENANCE MULTI-STAGE EXTEND CYLINDER 3RD STAGE 2ND STAGE 1ST STAGE FIGURE 4-18 Cylinder Disassembly and lubricate to eliminate damage to the packing gland O-ring during reassembly. After cylinder has been disassembled from boom, place on supports and place drain pan under holding valve.
Page 108: Jib Boom
BOOM MAINTENANCE NBT60 SERVICE MANUAL 1/4 in of snug. Using the proper size spanner wrench, torque the packing gland to 814 N·m (600 lb-ft). 10. Apply a 3/16 in wide band of Loctite ® 518 to outer threads of packing gland and complete installation.
Page 109 NBT60 SERVICE MANUAL BOOM MAINTENANCE STOWAGE BRACKET TYP 4 PLCS FIGURE 4-20 8332-2 Extend the boom approximately one foot. Using an overhead hoist, lift the jib assembly and align and pin the jib to the boom sheave head, Figure 4-21.
Page 110: Jib Jack Service And Maintenance
BOOM MAINTENANCE NBT60 SERVICE MANUAL STOW PIN STOW PIN BOTTOMED HOOK ASSY IN SLOT T-PIN FIGURE 4-24 FRONT BAR (TOP and BOTTOM) Retract the boom slowly. Observe the stow hook and ACCEPTABLE lock assembly alignment as the boom is retracted, Figure 4-25.
Page 111 NBT60 SERVICE MANUAL BOOM MAINTENANCE Changing Oil For best performance and longest life, replace the complete oil supply at least once a year. To drain the oil, remove the filler plug (4, Figure 4-27). Lay the jack on its side and allow the oil to run out into suitable drain pan.
Page 112: Lift Circuit
BOOM MAINTENANCE NBT60 SERVICE MANUAL LIFT CIRCUIT booming up (cylinder rod extended), booming down (cylinder rod retracted), or holding (cylinder rod stationary). Description Theory of Operation The boom lift circuit consists of the lift hydraulic remote The directional control valve bank housing is supplied by controller, lift directional control valve, holding valve, and the flow from the hydraulic pump.
Page 113 Operate unit to bring oil to operating temperature. Improper hose or fittings, installed. Replace hose or fittings. (Refer to Manitowoc Crane Care Parts Manual). Operating two functions with in the Feather controls to obtain desired same control valve bank assembly.
Page 114: Lift Cylinder Removal
Replace control valve. NOTE: Contact Manitowoc Crane Care for lift cylinder Pull the lower lift cylinder pivot shaft and any attached d i s a s s e m b l y a n d a s s e m b l y p r o c e d u r e s .
Page 115 NBT60 SERVICE MANUAL BOOM MAINTENANCE 8314-1 FIGURE 4-28 8314-3 Item Description Item Description Cylinder Thrust Washer Shaft-Lower Thrust Washer Capscrew M18 X 190 Lockwasher Nut - M18 Capscrew - M20 X 25 Shaft-Upper Lockwasher - M20 Capscrew - M16 X 150...
Page 116 BOOM MAINTENANCE NBT60 SERVICE MANUAL THIS PAGE BLANK 4-36 Published 1-17-2019 Control #492-04...
Page 117: Section Contents
The multiple disc brake is spring applied and hydraulically released through a port in the brake housing. An overrunning The NBT60 hoist is composed of motor control valve, a dual clutch allows the hoist to be raised without releasing the...
Page 118 HOIST AND COUNTERWEIGHT NBT60 SERVICE MANUAL 7569-11 FIGURE 5-1 Item Component Figure 5-1 Item Numbers Mounting Bolts (8 places) Item Component Turret Hoist Lower Port Brake Raise Port Motor 2 speed shift solenoid Published 1-17-2019 Control #492-04...
Page 119: Removal
NBT60 SERVICE MANUAL HOIST AND COUNTERWEIGHT Removal Run the crane at idle with the hoist control lever in neutral and allow sufficient time for the hydraulic system to warm up. Operate the hoist at low speeds, forward and reverse, several times to prime all lines with warm hydraulic oil and DANGER circulate lubricant through the planetary gear sets.
Page 120: Drum Rotation Indicator
HOIST AND COUNTERWEIGHT NBT60 SERVICE MANUAL HRI Display The HRI display is located in the console display panel. Reference the Controls and Operating procedures in Operator Manual. HRI Control Module The control module is located in the fuse and relay panel behind the driver’s seat in the cab Figure 5-3.
Page 121 NBT60 SERVICE MANUAL HOIST AND COUNTERWEIGHT Loosen set screw and remove shaft assembly from MWI. FIGURE 5-5 8640-3 Series A 8640-2 Series B 8640-8 8640-1 FIGURE 5-6 Installation Push the DRI into the drum so that the notch is lined up with the breather (3, Figure 5-5).
Page 122: Programming The Minimum Wrap Indicator
HOIST AND COUNTERWEIGHT NBT60 SERVICE MANUAL Gently press and hold the programming button for 1-2 seconds, then release. Replace the MWI/HMS programming screw. Tighten to 7 in-lbs. NOTE: Failure to replace the programming screw (1, Figure 5-8) could effect the operation of the MWI.
Page 123: Troubleshooting
NBT60 SERVICE MANUAL HOIST AND COUNTERWEIGHT NOTE: The drum rotation indication, commonly a thumper Disconnect the tubing (Item 22) connected to the brake handle, remains operational while the HMS is in housing (Item 21). Remove motor shipping mode. counterbalance valve assembly from the hoist by removing four capscrews (Item 47).
Page 124 HOIST AND COUNTERWEIGHT NBT60 SERVICE MANUAL Attach the output shaft (Item 32) to the side plate (Item 12. Install a new O-ring (Item 7-4) and, if necessary, a new 29) with six capscrews (Item 9), making sure the vent bearing (Item 28) and seal (Item 7-6) into the ring gear (Item 30) is oriented properly.
Page 125 NBT60 SERVICE MANUAL HOIST AND COUNTERWEIGHT Parts Li st Hoist Item Description Item Description CAPSCREW 36-2 Planet Gear Support rod 36-3 Planet Pin Counterbalance Block 36-4 Retaining Ring Gear Set 36-5 Plate Carrier 36-6 Needle Bearing Planet Gear 36-7 Fitting, Str Adapter...
Page 126 HOIST AND COUNTERWEIGHT NBT60 SERVICE MANUAL FIGURE 5-9 5-10 Published 1-17-2019 Control #492-04...
Page 127: Brake
NBT60 SERVICE MANUAL HOIST AND COUNTERWEIGHT Brake install the input sun gear (Item 38) into the brake housing and slide the driver/clutch assembly onto the Refer to Figure 5-9 and the Hoist Parts List on page 5-9 for sun gear spline.
Page 128: Planetary Set
HOIST AND COUNTERWEIGHT NBT60 SERVICE MANUAL Planetary Set Motor NOTE: See Figure 5-9 for item number (#) identification. Remove the hose and the counterbalance block (1) from the motor assembly (Figure 5-11). Remove the spiral retaining rings (4-4, 36-4) from the planet pins.
Page 129: Counterweight Cylinder
NBT60 SERVICE MANUAL HOIST AND COUNTERWEIGHT COUNTERWEIGHT CYLINDER Installation NOTE: Counterweight cylinder weighs 38.5 kg (85 lb). Removal Using an adequate lifting device and sling, lift and Stow counterweight; refer Stowing position the cylinder on top of the superstructure. Ensure Counterweight in Section 4 of your Operator’s Manual.
Page 130 HOIST AND COUNTERWEIGHT NBT60 SERVICE MANUAL THIS PAGE BLANK 5-14 Published 1-17-2019 Control #492-04...
Page 131: Section Contents
The purpose of the swing system is to allow the crane turret to Swing Drive rotate atop the carrier frame. The NBT60 swing system provides The hydraulic power for the swing drive (Figure 6-1) is supplied full 360 degree rotation in both directions and is equipped with by the PTO driven axial piston hydraulic pump.
Page 132: Description
SWING NBT60 SERVICE MANUAL Figure 6-1 Item List Item Description Item Description Motor Brake Apply Case Drain Breather Adjustable Speed Valve Brake Coolant In Control Counter-Clockwise Oil Fill/Vent Control Clockwise Oil Drain Brake Release Screw and Flatwasher, 3/4” Brake Coolant Out Screw and Lockwasher, 1/2”...
Page 133 NBT60 SERVICE MANUAL SWING 52 51 FIGURE 6-2 8320-1 National Crane Published 1-17-2019 Control #492-04...
Page 134 SWING NBT60 SERVICE MANUAL Item Component Item Component Plate, Drive - Brake Housing Plug, O-ring Shaft, Output Pin, Dowel Bearing, Spherical Adapter Bearing, Ball Pin, Roll Spacer, Bearing O-ring Ring, Retaining Spacer, Brake Ring, Retaining Seal Flange O-ring Carrier Assembly-Secondary Ser-21T/ 6.4:1 O-ring Carrier Assembly-Planetary - Pri 6.4:1...
Page 135: Swing Gearbox And Brake
NBT60 SERVICE MANUAL SWING Swing Gearbox and Brake 1000 hours or 6 months of usage. Gearbox oil is drained by removing the drain plug and vent (See Figure 6-1). The planetary gearbox is a hydraulically driven 2-stage planetary gearbox designed to use a motor with SAE “A” 2- Examine the used oil for signs of significant metal deposits and then dispose of it in a proper manner.
Page 136: Disassembly
SWING NBT60 SERVICE MANUAL • Parts to replace damaged or worn parts 11. To service the pinion gear or pinion bearings see Servicing the Bearing and Pinion, page 6-8 section in • Locknut (9) and lockwasher (8) this manual for disassembly and repair.
Page 137: Servicing The Brake
NBT60 SERVICE MANUAL SWING Place and center nylon thrust washer (14) onto input planet set (11). Press or tap the oil seal (49) out of brake adapter (19) 10. Lubricate and install a new O-ring (43) onto brake noting the orientation of the sealing lip. Using proper housing (19).
Page 138: Servicing The Bearing And Pinion
SWING NBT60 SERVICE MANUAL 18. Carefully place brake housing assembly onto piston into the housing. For this unit the dimension is 181 mm making sure to orient the motor mount capscrews and all (7.150 in). For reference see Figure 6-5.
Page 139: Swing Brake
NBT60 SERVICE MANUAL SWING FIGURE 6-6 8320-6 Troubleshooting Symptom Possible Cause(s) Corrective Action Gearbox brake will not 1. The brake discs and or stator plates are worn 1. Check and replace, the friction discs should hold 2. Broken dowel pins in brake piston measure no less than 1.9 mm (0.075 in) thick...
Page 140: Maintenance
SWING NBT60 SERVICE MANUAL MAINTENANCE Proper identification of bolt grade is important. When marked as a high strength bolt (grade 8), the serviceman must be General aware of bolt classifications and that he is installing a high strength heat-treated tempered component and the bolt The swing bearing is the most critical maintenance point of must be installed according to specifications.
Page 141 NBT60 SERVICE MANUAL SWING 29 28 32 31 FIGURE 6-7 8290-1 7564-10 7564-9 FIGURE 6-8 Outer Race Torquing Extend and set the outriggers. Fully elevate the boom. The outer race bolts (1) are located on top of the bearing Torque eight bolts (Figure 6-7) to 80%of their specified (Figure 6-9).
Page 142: Bearing Clearance
SWING NBT60 SERVICE MANUAL the socket, multiplier, backlash adapter, necessary Record the deflection indicated on the dial. extensions, and torque wrench. Repeat steps 4 through 7 three times and average the Return to bolt 1 and torque all bolts sequentially in a readings.
Page 143: Bearing Replacement
NBT60 SERVICE MANUAL SWING FIGURE 6-11 BEARING REPLACEMENT Elevate the boom slightly and shut down the engine. Tag and disconnect the battery cables. Removal Remove the boom and lift cylinder following the Fully extend and set the outriggers enough to take up procedures outlined in Boom Maintenance, page 4-1.
Page 144: Installation
SWING NBT60 SERVICE MANUAL 12. Attach a suitable lifting device to the turret. Remove any (maximum eccentricity) teeth (2) on the turret bearing slack in the sling. Do not pull up on the turret. (3). 13. Remove the remaining bolts and washers securing the The high point or maximum eccentricity of the turret swing bearing outer race to the carrier.
Page 145: Slew Encoder
NBT60 SERVICE MANUAL SWING 10. Install the boom and lift cylinder following the procedures NOTE: If the superstructure does not turn freely after outlined in Section 4- BOOM. bearing and pinion replacement, contact your local distributor. 11. Reconnect the batteries.
Page 146 SWING NBT60 SERVICE MANUAL THIS PAGE BLANK 6-16 Published 1-17-2019 Control #492-04...
Page 147: Section Contents
NBT60 SERVICE MANUAL OUTRIGGERS SECTION 7 OUTRIGGERS SECTION CONTENTS Description ......7-1 Description.
Page 148: Theory Of Operation
OUTRIGGERS NBT60 SERVICE MANUAL Theory of Operation unavailable. The module power LED illuminates when the control station is activated. The outriggers allow quick and easy crane set-up and Outrigger Selector Valve includes an outrigger beam position sensing system that aids the operator in selecting the correct load chart based on Pushing the desired selector buttons, the enable button, and the crane’s outrigger footprint.
Page 149 NBT60 SERVICE MANUAL OUTRIGGERS 7448-1 8232-7 8232-4 FIGURE 7-1 National Crane Published 1-17-2019 Control #492-04...
Page 150 OUTRIGGERS NBT60 SERVICE MANUAL Item Description Item Description Front Console Ground Station Outrigger Controls Outrigger Beam Assy-Tall Outrigger Extend/Retract Cylinder Outrigger Beam Assy-Short Lower Control Station Level Indicator Emergency Stop Switch Outrigger Jack Published 1-17-2019 Control #492-04...
Page 151: Maintenance
NBT60 SERVICE MANUAL OUTRIGGERS Maintenance Troubleshooting Symptom Probable Cause Corrective Action Outrigger beam extension cylinder Low hydraulic oil level. Check for leaks. Make any slow or erratic. needed repairs. Fill reservoir to proper level. b. Damaged relief valve. b. Remove relief valve; clean or replace.
Page 152 OUTRIGGERS NBT60 SERVICE MANUAL Symptom Probable Cause Corrective Action S l o w o r e r r a t i c o p e r a t i o n o f Cracked or damaged piston. Replace rod weld and all outrigger extension cylinders.
Page 153 NBT60 SERVICE MANUAL OUTRIGGERS Symptom Probable Cause Corrective Action Outrigger vertical jack cylinder m. Main hydraulic pump m. Replace or tighten hose and slow or erratic. (continued) cavitation. fittings. n. Worn or damaged hydraulic n. Repair replace pump pump section.
Page 154 OUTRIGGERS NBT60 SERVICE MANUAL Symptom Probable Cause Corrective Action 13. Individual outrigger will not set or Damaged piston seals. Replace seals. stow. b. Damaged check valve. b. Repair or replace valve. Loosen or broken wire to Repair or replace wiring.
Page 155: Outrigger Beam
NBT60 SERVICE MANUAL OUTRIGGERS OUTRIGGER BEAM 10. Remove the cotter pin and clevis pin securing the rod of the extension cylinder to the outrigger housing. Description 11. Attach a suitable lifting device of straps or belts to the beam. Partially pull the outrigger beam out of the...
Page 156 OUTRIGGERS NBT60 SERVICE MANUAL FIGURE 7-2 8291-1 7-10 Published 1-17-2019 Control #492-04...
Page 157 NBT60 SERVICE MANUAL OUTRIGGERS Extend Port Retract Port 8291-4 8291-2 FIGURE 7-2 continued National Crane 7-11 Published 1-17-2019 Control #492-04...
Page 158 OUTRIGGERS NBT60 SERVICE MANUAL Item Description Item Description O-ring Outrigger mid beam Flat washer 1/4” Narrow Cylinder assembly-2.50 - outrigger beam Lock washer 1/4” Reg Cylinder assembly-5.50 jack Hex head capscrew M10x35 Cap Bracket Lock washer 10 Shim L-Shape 4 mm Cotter Pin 0.25x3’’...
Page 159: Extension Cylinder
NBT60 SERVICE MANUAL OUTRIGGERS Installation 10. Install the shim plates on the ends of the outrigger housing and the mid beam using the bolts, washers, and Install the wear pad in the inside bottom of the outrigger lock washers. Adjust the gap to obtain a maximum housing.
Page 160: Outrigger Jack Cylinder
OUTRIGGERS NBT60 SERVICE MANUAL Maintenance Remove the bolts, washers, and lockwashers securing the trays to the extension cylinder and remove the trays. Removal Installation Extend the outrigger beam slightly for improved access NOTE: The extension cylinder weighs approximately to the jack cylinder. Shut down the engine.
Page 161 NBT60 SERVICE MANUAL OUTRIGGERS Lower the jack until the holes in the cylinder rod align Outrigger Jack Cylinder Internal Leak Test with the holes in the outrigger beam. Install the cap Use the following procedure to troubleshoot and diagnose an bracket on top of the cylinder.
Page 162: Outrigger System Valves
OUTRIGGERS NBT60 SERVICE MANUAL If oil stops flowing, the cylinder’s internal piston seal equipped with an (optional) single front outrigger (SFO) jack is sealing properly. have an additional relief valve. b. If oil continues to flow out the rod port, the cylinder’s...
Page 163: Single Front Outrigger (Sfo) Cylinder (Optional)
NBT60 SERVICE MANUAL OUTRIGGERS SINGLE FRONT OUTRIGGER (SFO) Installation CYLINDER (OPTIONAL) Apply grease (EP-MPG) to the inside of the jack cylinder support tube. Description Slide the cylinder into the cylinder support tube. The (optional) single front outrigger (SFO) jack cylinder has Install the check valve block on the cylinder port block a 7.6 cm (3.0 in) diameter bore and is the double acting type.
Page 164 OUTRIGGERS NBT60 SERVICE MANUAL 7743-2 7743-1 FIGURE 7-5 Item Description Item Description Single Front Outrigger Leg (0ptional) Lock Washer 5/16” Reg Cylinder Assembly Hex Nut 5/16-18UNC Check Valve Straight Thread Adapter Hex Head Capscrew 1/2-13UNCx1.25 G5 90 Deg Elbow - Male ORS Thd Lock Washer 1/2”...
Page 165: Lubrication
Specific recommendations of brand and grade of lubricants extreme condition lubrication, contact your local National are not made here due to regional availability, operating Crane Distributor or Manitowoc Crane Care. conditions, and the continual development of improved Environmental Protection products. Where questions arise, contact your National Crane Distributor or Manitowoc Crane Care.
Page 166: Chassis Grease
This is a special high-graphite adhesive lubricant that helps suitability of a specific fluid, check with your authorized to eliminate fretting corrosion, is water resistant, and forms a National Cranes distributor or Manitowoc Crane Care. dry lubrication film which does not attract dust. Lubricant NOTE: All fluids and lubricants may be purchased by meets NLGI Class 1-2 specifications.
Page 167: Arctic Hydraulic Oil
John Deere Standard JDM J20C. For colder operating conditions, the standard fluid may be Contact your National Crane distributor or Manitowoc Crane replaced with a petroleum based fluid developed especially Care if you have any questions.
Page 168: Lubrication Chart
LUBRICATION NBT60 SERVICE MANUAL Lubrication Chart 8810-2 Tilt Cab 7765a 7462-18 8802 10a 10b 11 12 8263-4 FIGURE 8-1 Published 1-17-2019 Control #492-04...
Page 169 NBT60 SERVICE MANUAL LUBRICATION Manitowoc Lube Specification Symbol Description Cold Weather Standard -40°C (-40°F) Antifreeze/Coolant (for Cab Heater) 6829101130 6829104212 EP-MPG Extreme Pressure Multipurpose Grease 6829003477 6829104275 GL-5 GL-5 Gear Lubricant 6829012964 6829014058 HYDO Hydraulic Oil 6829006444 6829006993 EP-OGL Open Gear Lubricant, CEPLATTYN 300 Spray, NLGI Grade 1-2...
Page 170 LUBRICATION NBT60 SERVICE MANUAL Recommended Item Application Procedure Frequency Lubricant Weekly, as required, Semi- Hydraulic Oil Tank Reservoir HYDO Check, fill, change Annually After first 40 hours, Quarterly Hydraulic Tank Oil Filter Change or clean thereafter. Hydraulic Tank Suction Filter (inside...
Page 171: Side And Bottom Boom Wear Pad Lubrication
NBT60 SERVICE MANUAL LUBRICATION Recommended Item Application Procedure Frequency Lubricant Any time boom is disassembled 20 Extension Cables (Not Shown) Spray or Brush or 5 years Hydraulic Tank - Magnetic Plug (tank When servicing hydraulic tank, Clean bottom) item 1...
Page 172: Hoist Brake Oil
LUBRICATION NBT60 SERVICE MANUAL Recommended lubricant is EP-3MG grease. NOTE: Hoist brake lubricants are satisfactory for operation in temperatures from -23° C to 66° C Fully extend and set the outriggers. Refer to (-10° F to +150° F). For operation outside this (Figure 8-2.)
Page 173: Swing Gearbox And Brake Oil
For operation outside this range, contact Manitowoc Crane Care for recommendations. Hoist gear lubricants are satisfactory for operation in temperatures from -23° C to 66° C (-10° F to +150° F). For operation outside this range, contact Manitowoc Crane Care for recommendations. Fill/Vent Drain...
Page 174: Surface Protection For Cylinder Rods
T-9 Premium Metal Protectant. abrasive material should be removed from the rope. Clean Manitowoc Crane Care has Boeshield T-9 Premium Metal with a stiff wire brush and solvent, compressed air, or live Protectant available in 12 oz. cans that can be ordered steam.
Page 175: Carwell® Rust Inhibitor
This To help protect against corrosion of National cranes, red tint will turn clear on its own within approximately 24 Manitowoc Crane Care recommends washing the crane at hours after application. least monthly to remove all foreign matter. More frequent Once applied, treatment can appear to leave a slightly “oily”...
Page 176: Inspection And Repair
Use of original paint colors is recommended necessary. to ensure the best color match possible. Please contact Manitowoc Crane Care should you have any For scratches and marks in areas of low visibility: questions. 8-12...
Page 177: Areas Of Application
NBT60 SERVICE MANUAL LUBRICATION Areas of Application • Superstructure applications are; hose ends and fittings, wire rope on hoist roller tensioning springs on hoists, all Refer to Figure 8-8 unpainted fasteners and hardware, valves, slew ring fasteners and all bare metal surfaces.
Page 178 LUBRICATION NBT60 SERVICE MANUAL 8261-5 8261-6 FIGURE 8-8 8-14 Published 1-17-2019 Control #492-04...
Page 179 NBT60 SERVICE MANUAL LUBRICATION Item Description Item Description Headache Ball/Hook Block Tiedown Counterweight Pins Mirror Mounting Hardware Hoist Plumbing Connections Powertrain Hardware Tension Spring O/R Hose Connections Pivot Shaft O/R Pins, Clips Valve bank, Hose Connections inside turntable Entire underside of crane...
Page 180 LUBRICATION NBT60 SERVICE MANUAL THIS PAGE BLANK 8-16 Published 1-17-2019 Control #492-04...
Page 181: Section 9
PTO, Pump, Reservoir ....9-15 NBT60 Crane Operating Speeds... . . 9-63 Reinforcing After Frame Extension .
Page 182 CRANE INSTALLATION NBT60 SERVICE MANUAL 25,000 pounds on the steering axle and 55,000 pounds Additional Equipment. In addition to the axle ratings, on a tandem/tridem axle if the crane is designated as a wheelbase, cab-to-axle requirements and frame, it is truck mounted crane.
Page 183 NBT60 SERVICE MANUAL CRANE INSTALLATION Typical Serial Number Location SUB-BASE 7873-03 7873-02 TURRET 8267-1 8267-2 8267-3 BASE BOOM TELE 1 BOOM TELE 2 BOOM 8267-6 8267-5 8267-4 TELE 3 BOOM LIFT CYLINDER TELE 4 BOOM FIGURE 9-1 National Crane Published 1-17-2019 Control #492-04...
Page 184: Mounting Configurations
(if no auxiliary hoist is No boom extension equipped equipped). No optional turret access step No Auxiliary nose or optional hook blocks. For more information contact Manitowoc Crane Care or your local National Crane distributor. Published 1-17-2019 Control #492-04...
Page 185 NBT60 SERVICE MANUAL CRANE INSTALLATION Configuration 1-NBT60128 (4-axle Minimum Truck) 9,782mm (31’11”) Retracted** 3708mm (146") 39,014mm (128’0” Extended** Tailswing w/out jib slabs pinned 1372mm (54") 4020mm (13’ 2 ¼”) Overall height 1143mm (45") 356mm (14") 2794mm (110") 1194mm 1956mm (77") 4877mm (192")
Page 186 CRANE INSTALLATION NBT60 SERVICE MANUAL Configuration 2-NBT60128 (Heavy Lift Truck-Tandem/Tridem) 9,782mm (31’11”) Retracted** 39,014mm (128’0” Extended** w/out jib 3708mm (146") Tailswing 2 slabs stowed 4020mm 1372mm (54") (13’ 2 ¼”) Overall height 1143mm (45") 2794mm (110") 1194mm 1829mm (72") 762mm (47")
Page 187 NBT60 SERVICE MANUAL CRANE INSTALLATION Configuration 3-NBT60128 (7-Axle Federal Bridge-Compliant) 11m (35’) Boom extended** 9,782mm (31’11”) Retracted** 39,014mm (128’0” 3708mm (146") Extended w/out jib** Tailswing 2 slabs 4020mm stowed (13’ 2 ¼”) 1372mm (54") Overall height 1346mm (53") 1143mm (45")
Page 188 (SFO) - if equipped requirements, since individual truck chassis vary. on the NBT60. See “Truck Frame Strength” on page 9-11 for truck frame strength required for mounting crane. If bare truck weights are not met, counterweight will be required.
Page 189: Pto Requirements
2 , 2 0 0 r p m p u m p s h a ft s p e e d w h i c h i s t h e recommended maximum speed for the NBT60 pump:...
Page 190: Pto Horsepower Requirements
NBT60 SERVICE MANUAL PTO Horsepower Requirements ENGINE SPEED (RPM) PTO RATIO In order to operate the NBT60 pump at full flow and full pump 2900 pressure, a PTO capable of delivering 100 HP per 2800 1000 RPM of shaft speed with 475 lb-ft torque rating is...
Page 191: Truck Frame Strength
In order for a truck frame to be suitable for accepting a The distances listed in the chart below are shown in NBT60 crane, the truck frame must have a requirement for Figure 9-6. rigidity so as not to allow excessive boom movement due to...
Page 192: Section Modulus Tables
CRANE INSTALLATION NBT60 SERVICE MANUAL Section Modulus Tables • Angle Reinforcement (Table B). If the truck is reinforced with an angle, refer to Table B for the data on The following tables will help determine the section modulus the added strength provided by the angle. Add this to the of the truck frame.
Page 193 NBT60 SERVICE MANUAL CRANE INSTALLATION THICKNESS 1/4 in (6.35 mm) THICKNESS 3/8 in (9.52 mm) 2½ (64) 3 (76) 3½ (89) 4 (102) 2½ (64) 3 (76) 3½ (89) 4 (102) 8 (203) 6.9 (113) 7.8 (128) 8.8 (144) 9.7 (159) 8 (203) 9.8 (161)
Page 194 CRANE INSTALLATION NBT60 SERVICE MANUAL TABLE C Section Modulus in 8 (203) 9 (229) 10 (254) 11 (279) 12 (305) 13 (330) 14 (356) 15 (381) 16 (406) 3/16 (4.76) 2.0 (33) 2.51 (41) 3.10 (51) 3.75 (61) 4.46 (73) 5.24 (86)
Page 195: Truck Preparation
NBT60 SERVICE MANUAL CRANE INSTALLATION TRUCK PREPARATION PTO, Pump, Reservoir Select the PTO according to the PTO Selection pages Plan installation completely before any work is done. Plan shown earlier in this section. PTO's are not furnished by the location of the crane for the final front and rear axle the factory.
Page 196: Reinforcing After Frame Extension
CRANE INSTALLATION NBT60 SERVICE MANUAL Reinforcing After Frame Extension Other fittings are of the O-ring boss type. These are installed by first screwing the lock nut flush to the Refer to “Truck Frame Strength” and “Section Modulus” upper thread land and installing the fitting into the t a b l e s .
Page 197 NBT60 SERVICE MANUAL CRANE INSTALLATION PLAN LOCATION OF CRANE MOUNTING ANCHORS SO THEY DON'T INTERFERE WITH BOLTS, ETC. (REF) TRUCK FRAME REMOVE BOLTS, CLAMP ON REINFORCING, MARK BOLT HOLE LOCATION FROM INSIDE OF FRAME BOLT CLEARANCE HOLE 1/16 in TO 1/8 in...
Page 198 CRANE INSTALLATION NBT60 SERVICE MANUAL If reinforcing is to be welded on, torch cut hole pattern in previously removed, then drill through reinforcing and reinforcing being careful to clear crane mounting truck frame being careful to clear crane mounting anchors.
Page 199 Replace any equipment that had been removed. Butt the reinforcing angle up against the reinforcing The NBT60 will usually require an after frame of forward of the suspension and mark the areas that will approximately 3,302mm (130 in) of after frame for a require cutting so that the angle will slide up around the tridem or tag axle.
Page 200 CRANE INSTALLATION NBT60 SERVICE MANUAL REINFORCING UNDER CRANE CUT OUTS-REPLACE AS MUCH MATERIAL AS POSSIBLE-BUTT WELD OVERLOAD SPRING STOP- REMOVE AND REPLACE BUTT WELD WELD 6 in SKIP 6 in WELD 6 in SKIP 6 in WELD 12 in SKIP WELD ALL BARS...
Page 201: Mounting The Crane
NBT60 SERVICE MANUAL CRANE INSTALLATION MOUNTING THE CRANE Bolt one anchor bar (13) to each of the six mounting plates (12) that are attached to the truck frame (18) T-Box Installation (Details A and D). Bolt a mounting plate (12) to each anchor bar (13) finger tight;...
Page 202 CRANE INSTALLATION NBT60 SERVICE MANUAL 7711-01 FIGURE 9-11 9-22 Published 1-17-2019 Control #492-04...
Page 203: Rear Bumper And Light Installation
NBT60 SERVICE MANUAL CRANE INSTALLATION Item Description Clamp Plate Channel Assembly Stud M20x900 10.9 Hex Lock Nut M20 8 ISO 7040 F Washer 20-HRC38 ANSI B18.22M L Washer 20-HRC44-51 DIN 7980 Hex Nut M20 8 ISO 4032 Plate Plate Plate, Shear Plate Spacer...
Page 204 CRANE INSTALLATION NBT60 SERVICE MANUAL 7716-03 7716-01 Detail A Detail B 7716-04 Detail D 7716-02 Detail C 7716-05 Detail E FIGURE 9-12 9-24 Published 1-17-2019 Control #492-04...
Page 205: Decking And Ladder Installation
NBT60 SERVICE MANUAL CRANE INSTALLATION Install a mud flap plate (20) on the left and right side rear Item Description fender (1, 2), then attach a mud flap (22) on each mud flap plate (20) using a bracket (21). Light Cover Plate...
Page 206 CRANE INSTALLATION NBT60 SERVICE MANUAL FIGURE 9-13 9-26 Published 1-17-2019 Control #492-04...
Page 207 NBT60 SERVICE MANUAL CRANE INSTALLATION FIGURE 9-14 National Crane 9-27 Published 1-17-2019 Control #492-04...
Page 208 CRANE INSTALLATION NBT60 SERVICE MANUAL FIGURE 9-15 9-28 Published 1-17-2019 Control #492-04...
Page 209: Single Front Outrigger Installation (Sfo) -Optional
NBT60 SERVICE MANUAL CRANE INSTALLATION Item Description Item Description Shoulder Bolt LH Rear Fender Flat Washer 1/2” Wide MS RH Rear Fender Flat Washer 3/8” Nar MS LH Fender Lock Washer 3/8 RH Front Fender Hex Nut 3/8-16UNC SAE-2 Mounting Bracket Flat Washer 7/8”...
Page 210 Figure 9-19 w/ Extended Front Rails NOTE: This chart is for reference only, as some bumpers may fit a chassis not marked. Always check with the Engineering Department of Manitowoc if a bumper requires modification. FIGURE 9-16 9-30 Published 1-17-2019 Control #492-04...
Page 211 NBT60 SERVICE MANUAL CRANE INSTALLATION 7719-01 7723-3 8354-1 Truck Grill 901 mm Truck Frame (34.5 in) 127 mm (5 in) Alignment Hole Center Bumper 8354-4 8354-3 FIGURE 9-17 National Crane 9-31 Published 1-17-2019 Control #492-04...
Page 212 CRANE INSTALLATION NBT60 SERVICE MANUAL Item Description Extended Frame Bumper Bumper Bracket Bracket Hex Head Capscrew 5/8-11UNCx2.5 G8 Flat Washer 5/8” Hard St Hex Nut 5/8-11UNC SAE-8 Single Front Outrigger (SFO) Cylinder Assembly Decal-Danger Outrigger Crush Hazard Before installing the single front outrigger (SFO) jack, ensure the truck frame and bumper mounting brackets meet the structural requirements as defined in the sub-section titled Truck Frame Strength, page 9-11.
Page 213 NBT60 SERVICE MANUAL CRANE INSTALLATION 7720 Item Description Bumper Single Front Outrigger (SFO) Cylinder Assembly Decal-Danger O/R Crush Hazard Before installing the single front outrigger (SFO) jack, ensure the truck frame and bumper mounting brackets meet the structural requirements as defined in the sub-section titled Truck Frame Strength, page 9-11.
Page 214 CRANE INSTALLATION NBT60 SERVICE MANUAL 7721-01 Insert button wire tie thru holes in truck frame where available 7721-03 .31 in 7 mm Jack cylinder hoses Truck frame .31 in 7 mm Center bumper assembly between frame rails Use plate assembly...
Page 215 NBT60 SERVICE MANUAL CRANE INSTALLATION Item Description Bumper Single Front Outrigger (SFO) Cylinder Assembly Hex Nut 5/8-11UNC SAE-8 Flat Washer 5/8” Hard St Hex Head Capscrew 5/8-11UNCx2 G8 Plate Installation Drawing Decal-Danger Outrigger Crush Hazard Before installing the single front outrigger (SFO) jack, ensure the truck frame and bumper mounting brackets meet the structural requirements as defined in the sub-section titled Truck Frame Strength, page 9-11 and that the top of the truck frame has a ground clearance between 765 to 1131 mm (30.13 to 44.56 in).
Page 216 CRANE INSTALLATION NBT60 SERVICE MANUAL 873 mm ref 34.5 in ref Ref Truck 6 mm See Detail A Truck Frame .25 in 7722-04 Truck Grill 7722-01 50 mm min 2.00 in min 7722-03 4.00 in Truck Frame Detail A 7723-3...
Page 217 NBT60 SERVICE MANUAL CRANE INSTALLATION Before installing the single front outrigger (SFO) jack, ensure the truck frame and bumper mounting brackets meet the structural requirements as defined in the sub-section titled Truck Frame Strength, page 9-11. Remove the existing bumper.
Page 218 CRANE INSTALLATION NBT60 SERVICE MANUAL 8347 Item Description Single Front Outrigger (SFO) Bumper Mount Hex Head Capscrew 1/2-13UNCx3 G8 Flat Washer 18” Nar MS Hex Nut 1/2-13UNC SAE-8 Single Front Outrigger (SFO) Cylinder Assembly Decal-Danger O/R Crush Hazard 7723-3 Before installing the single front outrigger (SFO) jack, ensure the truck frame and bumper mounting brackets meet the structural requirements as defined in the sub-section titled Truck Frame Strength, page 9-11.
Page 219 NBT60 SERVICE MANUAL CRANE INSTALLATION 7724 Item Description Bumper Single Front Outrigger (SFO) Cylinder Assembly Hex Head Capscrew 1/2-13UNCx3 G8 Flat Washer 1/2” Nar MS Lock Washer 1/2” Reg HRC45-51 Hex Nut 1/2-13UNC SAE-5.2 Hex Head Capscrew 3/4-10UNCx3 G8 Flat Washer 3/4” Hard ASTM F-436-...
Page 220 CRANE INSTALLATION NBT60 SERVICE MANUAL 7725-01 Radiator Mounting Bracket 4.25 in 107 mm Truck Frame 1.5 in 38 mm 1.5 in 38 mm Both Engine Sides Mounting Area 8345-1 355 mm min 14 in min 482mm max 19 in max...
Page 221 NBT60 SERVICE MANUAL CRANE INSTALLATION Before installing the single front outrigger (SFO) jack, ensure the truck frame and bumper mounting brackets meet the structural requirements as defined in the sub-section titled Truck Frame Strength, page 9-11. Also, ensure truck is equipped with the steel castings.
Page 222 CRANE INSTALLATION NBT60 SERVICE MANUAL 8351-2 8351-3 7723-3 Item Description Bumper Single Front Outrigger (SFO) Cylinder Mount Hex Head Capscrew 1/2-13UNCx2.5 G8 Flat Washer 1/2” Nar MS Lock Washer 1/2” Reg HRC45-51 Hex Nut 1/2-13UNC SAE-5.2 Hex Head Capscrew 1/2-13UNCx4 G8...
Page 223 NBT60 SERVICE MANUAL CRANE INSTALLATION Reuse Factory Hardware 8341-1 Item Description Single Front Outrigger (SFO) Cylinder Mount Single Front Outrigger (SFO) Arm - Left Single Front Outrigger (SFO) Arm - Right Spacer Crossmember Hex Head Capscrew 3/4-10UNCx2.75 G8 Flat Washer 5/8”...
Page 224 CRANE INSTALLATION NBT60 SERVICE MANUAL This bumper installation is to be used on Peterbilt 365/367 SBFA w/extended front rails. Remove the existing bumper. Mount the crossmember (5) between the single front outrigger (SFO) arms (2) and (3) reusing the existing factory hardware.
Page 225 NBT60 SERVICE MANUAL CRANE INSTALLATION 8342 Item Description Single Front Outrigger (SFO) Arm - Left Single Front Outrigger (SFO) Arm - Right Single Front Outrigger (SFO) Cylinder Mount Crossmember Hex Head Capscrew 5/8-11UNCx2.5 G8 Hex Head Capscrew 5/8-11UNCx2.5 G8 Flat Washer 5/8”...
Page 226 CRANE INSTALLATION NBT60 SERVICE MANUAL This bumper installation is to be used on Peterbilt 348 w/o extended front rails. Remove the existing tow pin/bumper brackets. Mount the crossmember (4) between the single front outrigger (SFO) arms (1) and (2) reusing the existing factory hardware.
Page 227 NBT60 SERVICE MANUAL CRANE INSTALLATION Center Bumper Between Rails Ref Peterbilt 348 See Detail A Truck Frame 8343-2 7722-04 Truck Frame 8343-3 Detail A 8343-1 Item Description Bumper Single Front Outrigger (SFO) Cylinder Assembly Hex Nut 3/4-10UNC SAE-8 Flat Washer 3/4” Hard Hex Head Capscrew 3/4-10UNCx2.0 G8...
Page 228 CRANE INSTALLATION NBT60 SERVICE MANUAL Before installing the single front outrigger (SFO) jack, ensure the truck frame and bumper mounting brackets meet the structural requirements as defined in the sub-section titled Truck Frame Strength, page 9-11. Remove the existing bumper.
Page 229 NBT60 SERVICE MANUAL CRANE INSTALLATION 8346 FIGURE 9-26 7723-3 National Crane 9-49 Published 1-17-2019 Control #492-04...
Page 230 CRANE INSTALLATION NBT60 SERVICE MANUAL Item Description Single Front Outrigger (SFO) Bracket - Right Single Front Outrigger (SFO) Bracket - Left Spacer Bumper Assembly Hex Head Capscrew 5/8-11UNCx1.75 G8 Flat Washer 5/8” Hex Nut 5/8-11UNC SAE-8 Hex Head Capscrew 1/2-13UNCx4 G8...
Page 231: Truck Interface Electrical Connection
NBT60 SERVICE MANUAL CRANE INSTALLATION Single Front Outrigger (SFO) Hydraulic Connection stationary or moving parts which could wear against the hose. Connect the piston side of the jack to port “3” of the Using the hydraulic hoses provided, connect the single front front outrigger control manifold;...
Page 232 CRANE INSTALLATION NBT60 SERVICE MANUAL FIGURE 9-28 9-52 Published 1-17-2019 Control #492-04...
Page 233 NBT60 SERVICE MANUAL CRANE INSTALLATION Battery Connection 7729-05 Truck Battery(s) Detail D #396 wire PTO indicator installation in truck dashboard PTO Connection 7729-04 Detail E FIGURE 9-28 continued Item Description Item Description License Plate Light Assem Lower Wire Harness Slot PMS #8-32UNCx0.75 G1...
Page 234 CRANE INSTALLATION NBT60 SERVICE MANUAL Truck Keyswitch and ECM Interface Wire# Function Comments Crane Start Signal Connect at start relay or keyswitch Truck ACC Signal Connect at keyswitch PTO Enabled Signal Connect at PTO - see PTO detail view Crane Ign Signal...
Page 235 NBT60 SERVICE MANUAL CRANE INSTALLATION International Engine Remote Throttle Settings Truck ECM Settings Name Value 75001 Aux. Throttle Cntrl - Mode Remote Operation Only 75021 Aux. Throttle Cntrl - In Cab Mode Stationary Variable 75041 Aux. Throttle Cntrl - RMT Pedal Enable...
Page 236 CRANE INSTALLATION NBT60 SERVICE MANUAL Caterpillar Engine Remote Throttle Settings Truck ECM Settings Category Parameter New Value Dedicated PTO Parameters PTO Configuration Remote Throttle and J1939 Speed Command Dedicated PTO Parameters PTO Engine Limit RPM Setting Indicated on TCC Input Selections...
Page 237 NBT60 SERVICE MANUAL CRANE INSTALLATION CAT - PTO and Throttle Sensor Wire Connections (See note) Note: CAT throttle sensor is used only to send the ECM a valid idle signal all the time. Sensor can be tie strapped to the truck wiring in the engine compartment.
Page 238 CRANE INSTALLATION NBT60 SERVICE MANUAL CAT J1939 Connection (See note) (See note) Note: Locate the blue connector vertically mounted above CAT ECM connectors. Disconnect this connector and locate 4 pin sleeve with resistor. Remove this resistor from the sleeve and connect in the J1939 splitter harness. There is a resistor located at the crane master module that replaces this resistor.
Page 239: Fuel Level Select Eeprom
NBT60 SERVICE MANUAL CRANE INSTALLATION Fuel Level Select EEPROM EEPROM can be found in the group called “J1939”. Refer to Figure 9-28. The Fuel Level Select EEPROM depends on the chassis If one of the EEPROMS listed on Table 9-2 does not show manufacturer's J1939 CAN network as to what message is the fuel level on the diagnostic screen, but “grays”...
Page 240: Initial Crane Run In Procedure
Proceed as follows: Example, starting over side on a NBT60 heavy lift ° Test the crane on a firm level surface. Provide cribbing with 39 m (128 ft) boom, without jib, assemble a load of under outrigger pads if they tend to sink when loaded.
Page 241 Over the rear Example, starting over the rear on a cast counterweight slab(s). Welding is not permitted to NBT60 with 39 m (128 ft) boom, without jib, at 32.6 m the counterweight castings. (107 ft) boom length, assemble a load of 2880.3* x1.176 = 3387.4 kg (6,350* x 1.176 = 7,468 lb) (including hook...
Page 242: Specifications
CRANE INSTALLATION NBT60 SERVICE MANUAL SPECIFICATIONS Hydraulic Hydraulic Pump ..............286 l/min (75.5 gpm) 2200 rpm, Variable displacement, axial piston with load sense Hydraulic Pump Displacement ..........130 cc/rev (7.93 in /rev) Pump Max Pressure ............338 bar (4900 psi) Load Sense Relief Valve..........
Page 243: Nbt60 Crane Operating Speeds
Weight - IPO (without auxiliary hoist option) ......317.5 kg (700 lb) General Capacity NBT60 ..............60 tons (54.4 metric tons) at 2.4 m (8 ft) radius Overall Length ............... 12.10 m (39.7 ft), with 39.0 m (128 ft) Boom Overall width................
Page 244 CRANE INSTALLATION NBT60 SERVICE MANUAL THIS PAGE BLANK 9-64 Published 1-17-2019 Control #492-04...
Page 245: Section 10
NBT60 SERVICE MANUAL SCHEMATICS SECTION 10 SCHEMATICS For your convenience, the latest version of schematics available at the time of printing are placed in this section. National Crane 10-1...
Page 246 SCHEMATICS NBT60 SERVICE MANUAL 10-2...
Page 247 NBT60 SERVICE MANUAL Alphabetical Index Specifications............9-62 Bearing Clearance .
Page 248 NBT60 SERVICE MANUAL Welding Precautions ........... . 3-1 Wire Rope Lubrication .

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