Page 1 Maintenance Part No.505070110002 Rev: C Manual Dec. 2022 产品说明书 PRODU C T MAN U AL TB28J Plus/TB910J Plus 0608E (2132E) G T JZ 0808E (2732E) G T JZ 0808E (2732E) G T JZ G T JZ 0808E (2732E)
Page 3 Operating, servicing and maintaining this vehicle or equipment can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle or equipment in a well-ventilated area and wear gloves or wash your...
Page 4 : No.128, East Jinzhou Avenue, Ningxiang High-tech Industrial Park, Changsha, Hunan, China Zip Code : 410600 Copyright © Hunan Sinoboom Intelligent Equipment Co., Ltd. All Rights Reserved The final interpretation right of this manual belongs to Hunan Sinoboom Intelligent Equipment Co., Ltd.
Page 5 (See Decals/Nameplate Inspection of the Operation Manual for details.) Trade Identification Model Serial No. Imperial Metric From 0507000513 to present TB28J Plus TB28J Plus TB910J Plus NOTE: • Product model is applied in product nameplate for distinction of products of different main parameters.
Page 6 This Page Intentionally Left Blank...
Page 7 This manual covers the basic parts information of one or more products. Therefore, please use this manual according to your needs. If you find problems in the manual or have suggestions for improve- ment, feel free to share your feedback with Sinoboom, and we will address these issues as soon as possible.
Page 8 This Page Intentionally Left Blank...
Page 9: Table Of Contents
Hydraulic System ..... 3-1 Pins and composite bearing... 4-5 TB28J Plus Maintenance Manual © Dec. 2022...
Page 10 B-5 Replace Fuel Strainer (fuel- Checklist D Procedures ....5-36 water separator) Element ..5-20 © Dec. 2022 TB28J Plus Maintenance Manual...
Page 11 System information ....7-12 Jib Boom Assembly (TB28J Plus Time setting......7-12 only) .
Page 13: Introduction
The owner or administrator of the machine shall also provide the manufacturer’s maintenance information to the person responsible for maintaining the machine. If you have any questions, contact Hunan Sinoboom In- telligent Equipment Co., Ltd.. TB28J Plus Maintenance Manual © Dec. 2022...
Page 15: Safety
In case of any accident involving the machinery of Also, people who have alcohol or drugs in their Hunan Sinoboom Intelligent Equipment Co., Ltd., notify system, or experience excessive fatigue or Hunan Sinoboom Intelligent Equipment Co., Ltd.
Page 16: Electrocution Hazards
Table 1-1 Minimum Safe Distance Voltage Minimum Safe Distance (Phase to Phase, kV) (m/ft) 0-50 3.05 (10) 50-200 4.60 (15) 200-350 6.10 (20) 350 -500 7.62 (25) 500 -750 10.67 (35) 750 -1000 13.725 (45) © Dec. 2022 TB28J Plus Maintenance Manual...
Page 17 Do not use the platform or boom ground, with gravel or other assembly to push other machines uneven surfaces, or near holes or objects. and steep slopes, maintain a minimum distance of 0.6m (2ft) and reduce the speed. TB28J Plus Maintenance Manual © Dec. 2022...
Page 18: Jobsite Hazards
12.5 m/s (28 mph). If the wind speed increases to beyond 12.5 m/s (28 mph) after the platform is lifted, fold the platform and stop operating the machine. © Dec. 2022 TB28J Plus Maintenance Manual...
Page 19 If the machine is to be used in any other applications, or by any other means, other than • Do not use any device that may those specified by Sinoboom, it must be approved or increase the wind load on the guided by the manufacturer. machine.
Page 20: Unsafe Operation Hazards
The battery not only provides power, but also serves as a counterweight. The battery is vital to maintaining the stability of the machine. © Dec. 2022 TB28J Plus Maintenance Manual...
Page 21: Fall Hazards
FALL HAZARDS At a minimum, operators must operate and maintain the machine as stated in the operation manual and in the maintenance manual in addition to following more stringent industry regulations and workplace rules. TB28J Plus Maintenance Manual © Dec. 2022...
Page 22: Crush Hazards
Set up roadblocks if necessary. • Limit the speed of travel according to ground conditions, crowding, gradients, the presence and location of personnel and any © Dec. 2022 TB28J Plus Maintenance Manual...
Page 23: Explosion And Fire Hazards
During operation, keep the left and right doors of the chassis closed and locked. Only trained service personnel can open the left and right doors to repair the machine. TB28J Plus Maintenance Manual © Dec. 2022...
Page 24: Hydraulic Hazards
ELECTROCUTION HAZARD • Contact with hot circuit may cause serious injury or death. Be sure to wear goggles, gloves and protective clothing. • Remove all rings, watches and other accessories. © Dec. 2022 1-10 TB28J Plus Maintenance Manual...
Page 25 • Do not tamper with battery system to avoid serious accident. • Cut off the battery main switch if the battery is not to be used for an extended period. TB28J Plus Maintenance Manual 1-11 © Dec. 2022...
Page 26: Welding And Polishing Requirements1-12
OFF position. 7. Turn the key switch at the ground controls to OFF position and remove the key to avoid unauthorized operation of the machine. 8. Turn off the main power switch. © Dec. 2022 1-12 TB28J Plus Maintenance Manual...
Page 27 SAFETY NOTICE After using the machine, the main power switch must be disconnected. TB28J Plus Maintenance Manual 1-13 © Dec. 2022...
Page 29: Specifications
SPECIFICATIONS MACHINE SPECIFICATIONS Table 2-1 TB28J Plus specifications TB28J PLUS (METRIC) TB910J PLUS (IMPERIAL) MEASURE DIMENSION Max platform height 27.6 m 90 ft 7 in Max working height 29.6 m 97 ft 1 in Max horizontal reach (restricted/ 18 m/19.9 m...
Page 30 Max allowable RH Stored at -20℃ to 50℃ (-4℉ to 122℉) in a well-ventilated environment Storage environment with 90% relative humidity (20℃ [68℉]), and away from rain, sun, corrosive gas, inflammables and explosives. WEIGHT © Dec. 2022 TB28J Plus Maintenance Manual...
Page 31 The platform capacity includes the loads of occupants, attachments, tools and other objects. f) The total vibration value of the platform does not exceed 2.5m/s², and the maximum root-mean-square value of the weighted acceleration of the entire machine does not exceed 0.5m/s². TB28J Plus Maintenance Manual © Dec. 2022...
Page 33: Engine Specifications
Displacement 0.77 gal (US) Number of Compression Cylinders 17：1 Ratio 98mm (3.86 in) Bore Firing Order 1-2-4-3 105mm (4.13 in) Stroke Output 55.4kw@2200rpm Total 3.17L Torque 260Nm (192 ft-lb)@1800rpm Displacement 0.70 gal (UK) TB28J Plus Maintenance Manual © Dec. 2022...
Page 34: Function Speed
Platform rotate: With the platform horizontal, rotate left and right the platform through two full cycles. Jib up/down: With the platform horizontal, raise and lower the jib boom through two full cycles. © Dec. 2022 TB28J Plus Maintenance Manual...
Page 35: Major Component Weights
Main boom telescopic cylinder Main boom level cylinder, upper Main boom level cylinder, lower Main boom lift cylinder Jib boom cylinder Reducer and motor Wheel assembly Engine-Cummins QSF2.8t3TC72 Engine-Deutz TD2.9L4 Engine-Deutz TD2011L04i Engine-WEICHAI WP3.2 Engine-Yuchai YCF3050 TB28J Plus Maintenance Manual © Dec. 2022...
Page 36: Hydraulic System Specifications
Drive pump compensator oil pressure 2.1 MPa (305 Psi) Brake enagaging pressure 3.5 MPa (508 Psi) Return Filter Return filter bypass pressure 0.4 MPa (58 Psi) High-pressure Filter High-pressure filter bypass pressure 0.7 MPa (102 Psi) © Dec. 2022 TB28J Plus Maintenance Manual...
Page 37: Hydraulic Hose And Fitting
ED, O-RING + CIRCLIP ED, O-RING + CIRCLIP O-RING L (LIGHT-DUTY) 18 ± 1 Nm(13 ± 1 ft-lb ) 20 ± 2 Nm (15 ± 2 ft-lb) 18 ± 1 Nm (13 ± 1 ft-lb) M10×1 TB28J Plus Maintenance Manual © Dec. 2022...
Page 38 50 ± 3 Nm (37 ± 2 ft-lb) 75 ± 5 Nm (55 ± 2 ft-lb) G1/2A 75 ± 5 Nm (55 ± 2 ft-lb) 95 ± 6 Nm (70 ± 4 ft-lb) © Dec. 2022 2-10 TB28J Plus Maintenance Manual...
Page 39 50 ± 3 Nm (37 ± 2 ft-lb) 80 ± 6 Nm (59 ± 4 ft-lb) 7/8-14 75 ± 5 Nm(55 ± 4 ft-lb ) 125 ± 10 Nm (92 ± 7 ft-lb) TB28J Plus Maintenance Manual 2-11 © Dec. 2022...
Page 40: Hydraulic Hose And Fitting Tight
300 Nm (221 ft-lb) 360 Nm (266 ft-lb) 250 Nm (184 ft-lb) 320 Nm (236 ft-lb) 380 Nm (280 ft-lb) 320 Nm (236 ft-lb) 420 Nm (310 ft-lb) 500 Nm (369 ft-lb) © Dec. 2022 2-12 TB28J Plus Maintenance Manual...
Page 41 1/4-28 7/16" 23 Nm (17 ft-lb) 32 Nm (24 ft-lb) 5/16-24 1/2" 41 Nm (30 ft-lb) 58 Nm (43 ft-lb) 3/8-24 9/16" 65 Nm (48 ft-lb) 92 Nm (68 ft-lb) 7/16-20 5/8" TB28J Plus Maintenance Manual 2-13 © Dec. 2022...
Page 42 200 Nm (148 ft-lb) 9/16-18 13/16" 200 Nm (148 ft-lb) 280 Nm (207 ft-lb) 5/8-18 15/16" 350 Nm (258 ft-lb) 495 Nm (365 ft-lb) 3/4-16 1-1/8" 560 Nm (413 ft-lb) 780 Nm (575 ft-lb) 7/8-14 © Dec. 2022 2-14 TB28J Plus Maintenance Manual...
Page 43: System Descriptions
The batteries are charged by the DC generator of the engine. Power- off switches are used to protect the control system. TB28J Plus Maintenance Manual © Dec. 2022...
Page 45: Service And Guidelines
Reference the Repair & Inspection Report for items Qualified Sinoboom equipment mechanic is a person requiring inspection. Reference the Inspection recognized by Sinoboom as one who, by possession of Procedures in appropriate areas of this manual to a recognized degree, certificate, training, has perform the inspection and maintenance procedures.
Page 46: Preventive Maintenance
SERVICE AND GUIDELINES annual machine inspection, notify Hunan Sinoboom Intelligent Equipment Co., Ltd. of the current machine ownership information. PREVENTIVE MAINTENANCE The preventive maintenance must be performed by a qualified Sinoboom equipment mechanic. Reference the Repair & Inspection Report and Maintenance Schedule in this manual for the inspection items and intervals.
Page 47: Storage
Never attempt to move heavy parts without the aid of a this manual. mechanical device. Do not allow heavy objects to rest in an unstable position. When raising a portion of the equipment, ensure that adequate support is provided. TB28J Plus Maintenance Manual © Dec. 2022...
Page 48: Cleanliness
• The static and dynamic load tests of the machine suggest a compliance with the relevant standard. © Dec. 2022 TB28J Plus Maintenance Manual...
Page 49: Pressure-Fit Parts
2. Unless specific torque requirements are given • Excessive sloppiness in joints. within the text, standard torque values should be used on heat-treated bolts, studs, and steel nuts, in • Noise originating from the joint during operation. TB28J Plus Maintenance Manual © Dec. 2022...
Page 50: Application Of Insulating Silicone Grease To Electrical Connections
1. Prior to the machine assembling, apply silicone grease around the male pins and female pins inside the connectors to prevent oxidization. An injector may be used for the convenience of operation. © Dec. 2022 TB28J Plus Maintenance Manual...
Page 51: Maintenance Procedures
• Without the manufacturer’s approval, do not change gin putting the machine into service. any parts, especially those load-bearing and safety- relevant parts. The replacement parts used in the TB28J Plus Maintenance Manual © Dec. 2022...
Page 52: Following Amaintenance Schedule
Every quarter or every 250 hours 2. The Repair & Inspection Report shall include the inspection table of each regular inspection. 3. Duplicate the Repair & Inspection Report template for each inspection. Store the completed tables for © Dec. 2022 TB28J Plus Maintenance Manual...
Page 53 A-10 Inspect Engine Belt A-11 Inspect Fuel Strainer (fuel-water separator) A-12 Inspect Cooling Fan A-13 Inspect Engine Intake System A-14 Functional Tests A-15 Perform Maintenance after 30 Days A-16 Perform Oscillate Cylinder Exhausting Checklist B Procedures TB28J Plus Maintenance Manual © Dec. 2022...
Page 54 B-15 Inspect Platform Rotate Cylinder Fasteners B-16 Test Cylinder Drift B-17 Inspect Counterbalance Valve Locking B-18 Inspect Electrical Wiring B-19 Inspect the Battery B-20 Test Oscillate Outriggers B-21 Test Drive Speed B-22 Inspect Emergency Lowering © Dec. 2022 TB28J Plus Maintenance Manual...
Page 55 D-3 Replace Hydraulic Oil D-4 Replace Hydraulic Tank Suction Filter D-5 Replace Coolant and Coolant Hoses (water-cooled engine) D-6 Replace Fuel Hoses D-7 Inspect Boom Wear Pads User Inspector Signature Inspection Date Inspector Title Inspector Company TB28J Plus Maintenance Manual © Dec. 2022...
Page 56: Major Modification And Repair Record
“Good” condition before company. continuing to use the machine. Table 5-4 Major Modification and Repair Record Model Serial No. Machine Repair- Repairman’s Status Problem Description Modification/Repair Item Date Company and Signature Position ter Change © Dec. 2022 TB28J Plus Maintenance Manual...
Page 57: Checklist Aprocedures
Intelligent Equipment Co., Ltd.. 1. Open the left turntable cover to make visual inspection of the sides of hydraulic tank, the hydraulic oil level should be within the marking range of oil level indicator. TB28J Plus Maintenance Manual © Dec. 2022...
Page 58: Inspect Hydraulic Leakage
Inspect the area on or around the following components for hydraulic spill, dripping or residues: © Dec. 2022 TB28J Plus Maintenance Manual...
Page 59: Inspect Fuel Leakage
A-7 Inspect Fuel Leakage Inspecting fuel leakage is vital to safe and normal machine operation. If a fuel leak is not discovered and TB28J Plus Maintenance Manual © Dec. 2022...
Page 60: Inspect Engine Oil Level
1. Turn the ground/platform select switch to ground control. 2. Pull out the emergency stop button at ground controller to ON position. © Dec. 2022 5-10 TB28J Plus Maintenance Manual...
Page 61: Inspect Coolant Level（Water
Shut off the engine before inspection. Inspect the engine belt for： Figure 5-4 • Crack or breakage 3. The coolant level should be at the fill inlet of the • Wear or misalignment coolant box. • Peeling-off TB28J Plus Maintenance Manual 5-11 © Dec. 2022...
Page 62: Inspect Fuel Strainer
• Ensure that a conforming fire extinguisher is readily accessible when performing this inspection procedure. 1. Open the right turntable cover. 2. Locate the fuel strainer. © Dec. 2022 5-12 TB28J Plus Maintenance Manual...
Page 63: Water Separator
Be sure to keep the intake system clean and free of leakage. A-14 Functional Tests Figure 5-11 Testing each machine function is vital to safe machine operation. If any function operates improperly, it will TB28J Plus Maintenance Manual 5-13 © Dec. 2022...
Page 64 2. ON position 10. Turntable rotate switch (if equipped) 3. OFF position 11. Main boom telescope switch 19. Ground/Platform select switch 12. Jib up/down switch-TB28J Plus 20. Emergency stop button 4. Horn button only © Dec. 2022 5-14 TB28J Plus Maintenance Manual...
Page 65 18. Glow plug switch (if equipped) 10. Turntable rotate switch 3. OFF position 11. Main boom telescope switch 19. Ground/Platform select switch 12. Jib up/down switch-TB28J Plus 20. Emergency stop button 4. Horn button only 5. Key switch 13. Jib rotate switch (not used) 21.
Page 66 21. Heavy load indicator 9. Platform info 33. Overload limit 10. Alarm message 34. Drive limit (operating position) 22. Overload alarm 35. Drive and boom functions 23. Axle extended in place 11. Fault alarm allowed © Dec. 2022 5-16 TB28J Plus Maintenance Manual...
Page 67 2. Release switch 22. Engine high/low speed select 12. Main boom telescope direction (if equipped) switch 13. Jib rotate direction-TB28J Plus 23. Engine start switch 3. Platform level switch only (not used) 14. Hydraulic generator switch 4.Turntable rotate direction 24.
Page 68: Perform Maintenance After
MAINTENANCE PROCEDURES 9. Not used 19. Drive/steer control handle 29. Horn button 10. Jib up/down switch-TB28J Plus 20. Drive direction 30. Buzzer button only A-15 Perform Maintenance after 30 blocked filter could cause damage to the machine components. Replace the return filter more frequently Days in harsh environments.
Page 69: Return Filter Element
Ensure the cooling fins of radiator are not blocked The machine may be unable to operate properly if the by debris. hydraulic oil becomes dirty, and the hydraulic parts may be damaged if using contaminated oil. Replace the TB28J Plus Maintenance Manual 5-19 © Dec. 2022...
Page 70: Replace Fuel Strainer
1. Open the right side cover of turntable. 2. Locate the fuel strainer (fuel-water separator). Figure 5-19 Cummins QSF2.8t3TC72 fuel- water separator Figure 5-17 Deutz TD2.9 L4 fuel strainer Figure 5-20 WEICHAI WP3.2 fuel strainer © Dec. 2022 5-20 TB28J Plus Maintenance Manual...
Page 71: Tank
Shut off the machine before inspection. NOTICE 1. Remove the air filter of hdraulic tank. Shut off the engine before inspection. 1. Open the right side cover of turntable, and locate the high-pressure filter. TB28J Plus Maintenance Manual 5-21 © Dec. 2022...
Page 72: Replace Air Filter Element Of
Inspecting the engine air filter is vital to proper engine operation. Failure to perform this inspection procedure will result in engine malfunction and component damage. 1. Open the right side cover of turntable. © Dec. 2022 5-22 TB28J Plus Maintenance Manual...
Page 73: Sensors
8. Install the end cap back to the filter and secure the clip. 8. The boom can be fully retracted. Inspecting angle sensor 1. Turn the Ground/Platform select switch at ground controls to the Ground. TB28J Plus Maintenance Manual 5-23 © Dec. 2022...
Page 74: System
1. Open the left side cover of turntable, and locate the bolt at top and the other one at 90 degrees, as slewing reducer. shown in the figure below. 2. Remove the plug of fill port to check the oil level. © Dec. 2022 5-24 TB28J Plus Maintenance Manual...
Page 75: Bolts
4. Ensure the feeler gauge won’t go through the outside of bolt head to the bolt shank. 5. Rotate the turntable to inspect all the bolts. Inspecting the connecting bolts between turntable and slewing bearing TB28J Plus Maintenance Manual 5-25 © Dec. 2022...
Page 76: Inspect Platform Rotate
Fig 5-30 , page 5-25, insert a 0.04mm feeler gauge in between the bolt and washer. 7. Ensure the feeler gauge won’t go through the outside of bolt head to the bolt shank. © Dec. 2022 5-26 TB28J Plus Maintenance Manual...
Page 77: Test Cylinder Drift
0.63/0.025 8. The assistant on the ground should inspect whether the wheel on the front left or rear right still remains 100/3.94 0.39/0.015 off the ground, and keept it elevated. 125/4.92 0.23/0.009 TB28J Plus Maintenance Manual 5-27 © Dec. 2022...
Page 78: Inspect Electrical Wiring
The instructions below are applied only for batteries requiring maintenance： © Dec. 2022 5-28 TB28J Plus Maintenance Manual...
Page 79: Test Oscillate Outriggers
3. Drive the machine to allow the right steer wheel upon the kerb or a block with thickness of 120mm (4.7 in). 4. The other 3 wheels of the machine should come in close contact with the ground. TB28J Plus Maintenance Manual 5-29 © Dec. 2022...
Page 80: Inspect Tilt Protection
The brake must be able to hold the machine on any restricted, but the boom retracting, turntable slope it is able to climb. rotating and boom lowering when retracted to less than 1.2m (3ft 11in) should be allowed. © Dec. 2022 5-30 TB28J Plus Maintenance Manual...
Page 81: Checklist Cprocedures
1. Open the right side cover of turntable and locate the fuel filter. Figure 5-38 Cummins QSF2.8t3TC72 fuel filter Figure 5-39 WEICHAI WP3.2 fuel filter Figure 5-36 Deutz TD2.9 L4 fuel filter TB28J Plus Maintenance Manual 5-31 © Dec. 2022...
Page 82: Inspect Boom Extend/Retract
If the cables are located outside of the pulleys, adjust the cables to the appropriate place. • Manually guide the cables and inspect the cable tension, a properly tensioned cable should be impossible or hard to be moved. © Dec. 2022 5-32 TB28J Plus Maintenance Manual...
Page 83 NOTICE The waste engine oil should be collected in a suitable vessel for disposal or recycling. The waste engine oil should be treated in compliance with the environment laws or regulations. TB28J Plus Maintenance Manual 5-33 © Dec. 2022...
Page 84: Replace Engine Oil Filter
Figure 5-49 WEICHAI WP3.2 engine oil Figure 5-46 Deutz TD2.9 L4 engine oil filter filter Figure 5-50 YUCHAI YCF3050 engine oil filter Figure 5-47 Deutz TD2011L04i engine oil filter 2. Drain the engine oil into a container. © Dec. 2022 5-34 TB28J Plus Maintenance Manual...
Page 85: Tank
The time of the While performing override operation on override operation and the actual weight on the the machine, please avoid operation in platform are recorded on the display. a dangerous direction. TB28J Plus Maintenance Manual 5-35 © Dec. 2022...
Page 86: Checklist Dprocedures
D-3 Replace Hydraulic Oil Regularly replacing hydraulic oil is vital to good machine performance and extending service life. Unclean oil may cause the machine to function poorly and continued use may result in hydraulic component © Dec. 2022 5-36 TB28J Plus Maintenance Manual...
Page 87: Replace Hydraulic Tank
6. Remove the retaining bolts from the hydraulic tank cover, and remove the hydraulic tank cover. 7. Rinse out the inside of the tank using a mild solvent, and remove the drain plug to empty the solvent. TB28J Plus Maintenance Manual 5-37 © Dec. 2022...
Page 88: Replace Fuel Hoses
Regularly replacing the fuel hoses is vital to safe engine operation and extending service life. Long-time use of old, frayed or broken fuel hoses may pose dangers to machine operation. © Dec. 2022 5-38 TB28J Plus Maintenance Manual...
Page 89 Thickness Specifications 16mm（0.63in） 30mm（1.18in） 20mm（0.79in） 11mm（0.43in） 16mm（0.63in） 28mm（1.1in） 25mm（0.98in） 3. When the wear extent of the wear pad is greater or equal to 3mm (0.118in.), the wear pad assembly should be timely replaced. TB28J Plus Maintenance Manual 5-39 © Dec. 2022...
Page 91: Repair Procedures
The retract cable is installed outside the boom so that the failures with retract cable are self- TB28J Plus Maintenance Manual © Dec. 2022...
Page 92: Platform Controller
5. Use a suitable device to support the platform rotate motor. 6. Remove the bolts and nuts securing the pivot pin 4# to the platform rotate motor. 7. Remove the platform rotate motor. © Dec. 2022 TB28J Plus Maintenance Manual...
Page 93: Jib Boom Assembly
REPAIR PROCEDURES • Check the inside of bearings for wear, scratch, Jib Boom Assembly (TB28J Plus only) deformation or other damages, and replace if needed. • Check the jib lift cylinder connecting pins for wear, scratch, deformation or other damages. Before...
Page 94: Cable Track Assembly
3. Using a tool, hold the thread end (platform end) of 4. Using a wrench, torque alternately the adjusting the retract cable to prevent it from rotating. nuts of the both retract cables to 112 Nm（82.68 ft- lb）. © Dec. 2022 TB28J Plus Maintenance Manual...
Page 95: Main Boom Assembly
The boom is positioned in the chassis drive direction, and the turntable lock pin is secured, as shown in . • The counterweight is adequately supported by a rigid structure, as shown in . TB28J Plus Maintenance Manual © Dec. 2022...
Page 96: Chassis And Turntable Components
Part Manual. If the replacement tires are Figure 6-11 not as Hunan Sinoboom Intelligent Equipment Co., Ltd. recommends, the following requirements of tires should be met: 1. Ply rating/rated load and dimension equal to or greater than original.
Page 97: Reducer And Drive Motor
Do not use a lubricant on threads or nuts. Figure 6-14 2. Tighten the nuts in the sequence as shown below. TB28J Plus Maintenance Manual © Dec. 2022...
Page 100 Tapered Roller Bearing 79913011 Locknut 79911183 Bearing Support 18125437 Circlip for Hole 79912186 Inner Gear Ring 79916156 Sun Gear 79911093 Planet Carrier 79916119 Planet Gear 18121066 Cylindrical Roller Bearing 18125703 Circlip for Shaft © Dec. 2022 6-10 TB28J Plus Maintenance Manual...
Page 101 6. Use a suitable lifting device to support the drive torque the bolts after pretightening. reducer. 8. Attach the hrdraulic hoses. 7. Remove the bolts and washers securing the drive reducer to the outrigger, and remove the drive reducer. TB28J Plus Maintenance Manual 6-11 © Dec. 2022...
Page 102: Turntable Slewing Mechanism
0.15— 4. Tighten the bolts in the sequence as shown in the 0.25mm (0.006–0.01in). figure below. © Dec. 2022 6-12 TB28J Plus Maintenance Manual...
Page 103: Engine
2. Tag and disconnect the battery cables. manual introduces part of engine maintenance items, 3. With assitance of a lifting device, remove the please see the following sections for details： battery. • A-6 Inspect Fuel Level TB28J Plus Maintenance Manual 6-13 © Dec. 2022...
Page 104: Hydraulic Generator
MACHINE DAMAGE HAZARD Pay attention to the position of the hydraulic generator during installation to ensure that the hydraulic generator does not interfere with other parts of the machine during the whole process. © Dec. 2022 6-14 TB28J Plus Maintenance Manual...
Page 105 Debugging must be performed by • The output voltage of the machine the after-sales personnel of can be as high as 208/120V (North Sinoboom. Do not debug the America)/230V (Australia), and machine without permission. electric shock can cause serious injury or death. The maintenance...
Page 106: Hydraulic System
REPAIR PROCEDURES HYDRAULIC SYSTEM Layout of Hydraulic Elements Figure 6-20 Hydraulic system of threaded cartridge valve © Dec. 2022 6-16 TB28J Plus Maintenance Manual...
Page 107 18. Platform manifold, duplex 5. Brake/2–speed control valve 12. High-pressure filter 19. Jib counterbalance valve 6. Oscillate control valve 13. Open-type variable displacement pump 7. Boom function manifold 14. Closed-type variable displacement pump TB28J Plus Maintenance Manual 6-17 © Dec. 2022...
Page 108 REPAIR PROCEDURES Figure 6-21 Hydraulic system of multi-way valve © Dec. 2022 6-18 TB28J Plus Maintenance Manual...
Page 109 21. Level counterbalance valve 6. Slewing buffer valve 14. Oil collecting block 22. Lift counterbalance valve 7. Power unit 15. Oil collecting block 23. Telescope counterbalance valve 8. Quintuplet multi-way valve 16. Oscillate multi-way valve TB28J Plus Maintenance Manual 6-19 © Dec. 2022...
Page 110: Function Valves
REPAIR PROCEDURES Function Valves 12-2 12-3 14-1 12-1 14-2 Figure 6-22 Boom function manifold (PN.202040003176) © Dec. 2022 6-20 TB28J Plus Maintenance Manual...
Page 111 Restrict pressure for boom extending 14–2 Relief valve 6–way Y-type 8Nm (6ft-lb) Steer direction control gate valve 6–way solenoid 8Nm (6ft-lb) Boom telescoping direction control valve 10–way solenoid 15Nm (11ft-lb) Boom telescoping direction control valve TB28J Plus Maintenance Manual 6-21 © Dec. 2022...
Page 112 REPAIR PROCEDURES Figure 6-23 Slewing buffer valve （PN.202040003061） Table 6-9 Slewing buffer valve （PN.202040003061） TORQUE NAME FUNCTION Counterbalance 40～45Nm (30～33ft-lb) Maintain a balanced load valve Shuttle valve Switch oil lines © Dec. 2022 6-22 TB28J Plus Maintenance Manual...
Page 113 Table 6-10 Brake/2-speed control valve (PN.202040000006) TORQUE NAME FUNCTION Reducing valve 33.9Nm (25ft-lb) Control the braking/2-speed pressure Damper 27.1Nm (20ft-lb) Control braking 3–1 Solenoid valve 27.1Nm (20ft-lb) Control high/low speed switching 3–2 Solenoid valve Damper Damper Damper TB28J Plus Maintenance Manual 6-23 © Dec. 2022...
Page 114 40Nm (30ft-lb) Solenoid valve Control oscillation 12～15Nm (9～11ft-lb) Shuttle valve Switch oil lines Damper 5Nm (9ft-lb) Damper 5Nm (9ft-lb) Damper 5Nm (9ft-lb) Hydraulic 45～50Nm (33～37ft-lb) Keep fluid flowing in one way controlled valve © Dec. 2022 6-24 TB28J Plus Maintenance Manual...
Page 115 Drain the oil at the low-pressure side 40～45Nm (30～33ft-lb) Control traveling pressure Relief valve 12～15Nm (9～11ft-lb) Shuttle valve Switch oil lines Damper 5Nm (4ft-lb) Damper 5Nm (4ft-lb) 55～65Nm (41～48ft-lb) Keep fluid flowing in one way Check valve TB28J Plus Maintenance Manual 6-25 © Dec. 2022...
Page 116 Table 6-13 Platform duplex manifold (PN.202040000329) TORQUE NAME FUNCTION 40～45Nm (30～33ft-lb) Control jib lifting\lowering direction 1–1 Solenoid valve 40～45Nm (30～33ft-lb) Control platform rotation direction 1–2 Solenoid valve Damper 5Nm (9ft-lb) Damper 5Nm (9ft-lb) © Dec. 2022 6-26 TB28J Plus Maintenance Manual...
Page 117 FUNCTION Counterbalance 40～45Nm (30～33ft-lb) Maintain a balanced load valve Figure 6-29 Leveling counterbalance valve (PN.202040000011) Table 6-15 Leveling counterbalance valve (PN.202040000011) NAME TORQUE FUNCTION Counterbalance 70～75Nm (52～55ft-lb) Maintain a balanced load valve TB28J Plus Maintenance Manual 6-27 © Dec. 2022...
Page 118 Counterbalance 41～47Nm (30～35ft-lb) Maintain a balanced load valve Figure 6-31 Counterbalance valve (PN.202040003219) Table 6-17 Counterbalance valve (PN.202040003219) TORQUE NAME FUNCTION Counterbalance 70～75Nm (52～55ft-lb) Maintain a balanced load valve Damper 5Nm (4ft-lb) © Dec. 2022 6-28 TB28J Plus Maintenance Manual...
Page 119: Hydraulic Symbols
2018.10.25 32.0000 28.5682 17.4787 46.7096 Check valve 28.5682 46.7096 Emergency power 28.5682 16.0000 34.4087 46.7096 34.4087 32.0000 棕兰 Hydraulic motor 32.0000 黑 16.0000 28.5682 16.0000 Overflow valve 17.4787 46.7096 34.4087 TB28J Plus Maintenance Manual 6-29 © Dec. 2022 32.0000...
Page 120: Hydraulic Schematic
REPAIR PROCEDURES Hydraulic Schematic Figure 6-33 TB28J Plus hydraulic schematic-threaded cartridge valve © Dec. 2022 6-30 TB28J Plus Maintenance Manual...
Page 121 REPAIR PROCEDURES Figure 6-34 TB28J Plus hydraulic schematic-Hengli multi-way valve TB28J Plus Maintenance Manual 6-31 © Dec. 2022...
Page 123: Electrical System
REPAIR PROCEDURES Figure 6-35 TB28J Plus hydraulic schematic (hydraulic generator) ELECTRICAL SYSTEM Fault Code Description In case of machine malfunctions, please enter the fault display interface on the ground controller to check the fault codes. Table 6-20 Machine fault code description...
Page 124 Check the wiring of steer right solenoid valve valve fault fault Platform swing left Platform swing left solenoid Check the wiring of platform swing left solenoid solenoid valve fault valve fault valve © Dec. 2022 6-34 TB28J Plus Maintenance Manual...
Page 125 Articulated boom Articulated boom relative Check the wiring of articulated boom relative relative angle angle sensor fault angle sensor sensor fault TB28J Plus Maintenance Manual 6-35 © Dec. 2022...
Page 126 Electrical circuit #1 of intake manifold Low-voltage short circuit temperature sensor Electrical circuit #1 of intake manifold Data valid but higher than normal (highest-level severity) temperature sensor Electrical circuit #1 of coolant level High-voltage short circuit sensor © Dec. 2022 6-36 TB28J Plus Maintenance Manual...
Page 127 Data valid but lower than normal Engine coolant temperature 2963 (lowest-level severity) Data valid but higher than normal Over temperature of intake manifold #1 2964 (lowest-level severity) SAE J1939 accelerator pedal sensor Update error 3326 system TB28J Plus Maintenance Manual 6-37 © Dec. 2022...
Page 128: Use And Maintenance Of Battery
Remove all rings, watches and damage to the battery system. other accessories. • Except for the professionals, do not remove the battery housing, otherwise it may cause damage to the battery system. © Dec. 2022 6-38 TB28J Plus Maintenance Manual...
Page 129 1.238 2.083 6.25 12.50 1.217 2.062 6.19 12.37 1.195 2.040 6.12 12.24 1.172 2.017 6.05 12.10 1.148 1.993 5.98 11.96 1.124 1.969 5.91 11.81 1.098 1.943 5.83 11.66 1.073 1.918 5.75 11.51 TB28J Plus Maintenance Manual 6-39 © Dec. 2022...
Page 130: Electrical Symbols
3 days or longer when the battery 46.7096 46.8000 level less than 10%). 34.4087 Toggle switch Electrical Symbols 28.5682 Table 6-23 Symbol Description Level switch Buzzer Valve Oil temperature θ switch θ θ © Dec. 2022 6-40 TB28J Plus Maintenance Manual θ...
Page 131 θ Fuel level sensor Power-off switch Horn Relay Key switch Warning lamp Preheating wire Valve Two lines non- connected 棕兰 Proximity switch/ 黑 Pressure sensor 28.5682 46.7096 28.5682 棕兰黑 TB28J Plus Maintenance Manual 6-41 © Dec. 2022...
Page 132: Electrical Schematic
2 3 4 5 XJ1-17/18 XJ1-1/2 XJ1-15/16 OUT_24 L202/203 XJ1-19/20 IN_48 OUT_23 2/19 DT19 XJ1-11/12 IN_49 OUT_26 XJ1-9/10 XJ1-7/8 IN_50 OUT_25 XJ1-5/6 Figure 6-36 Electrical schematic of turntable, Deutz TD2011L04i/US Phase 3 © Dec. 2022 6-42 TB28J Plus Maintenance Manual...
Page 133 2 3 4 5 XJ1-15/16 OUT_24 L202/203 XJ1-19/20 IN_48 OUT_23 2/19 DT19 XJ1-11/12 IN_49 OUT_26 XJ1-9/10 XJ1-7/8 IN_50 OUT_25 XJ1-5/6 120Ω Figure 6-37 Electrical schematic of turntable, Deutz D/TD2.9 L4/Euro Phase 5 TB28J Plus Maintenance Manual 6-43 © Dec. 2022...
Page 134 2 3 4 5 XJ1-15/16 OUT_24 L202/203 XJ1-19/20 IN_48 OUT_23 DT19 2/19 XJ1-11/12 IN_49 OUT_26 XJ1-9/10 XJ1-7/8 IN_50 OUT_25 XJ1-5/6 120Ω Figure 6-38 Electrical schematic of turntable, Deutz D/TD2.9 L4/US Phase 4, hydraulic generator (Deutz) © Dec. 2022 6-44 TB28J Plus Maintenance Manual...
Page 135 2 3 4 5 XJ1-15/16 OUT_24 L202/203 XJ1-19/20 IN_48 OUT_23 DT19 2/19 XJ1-11/12 IN_49 OUT_26 XJ1-9/10 XJ1-7/8 IN_50 OUT_25 XJ1-5/6 Figure 6-39 Electrical schematic of turntable, Cummins QSF2.8t/China Phase 3, hydraulic generator (Cummins) TB28J Plus Maintenance Manual 6-45 © Dec. 2022...
Page 136 XJ1-1/2 2 3 4 5 XJ1-15/16 OUT_24 L202/203 XJ1-19/20 IN_48 OUT_23 DT19 2/19 XJ1-11/12 IN_49 OUT_26 XJ1-9/10 XJ1-7/8 IN_50 OUT_25 XJ1-5/6 120Ω Figure 6-40 Electrical schematic of turntable, WEICHAI WP3.2/China Phase 4 © Dec. 2022 6-46 TB28J Plus Maintenance Manual...
Page 137 XJ1-17/18 XJ1-1/2 2 3 4 5 XJ1-15/16 OUT_24 L202/203 XJ1-19/20 IN_48 OUT_23 DT19 2/19 XJ1-11/12 IN_49 OUT_26 XJ1-9/10 XJ1-7/8 IN_50 OUT_25 XJ1-5/6 Figure 6-41 Electrical schematic of turntable, Yuchai YCF3050/China stage 4 TB28J Plus Maintenance Manual 6-47 © Dec. 2022...
Page 138 XJ1-19/20 120Ω IN_48 OUT_23 2/19 XJ1-11/12 IN_49 OUT_26 XJ1-9/10 DT213 XJ1-7/8 IN_50 OUT_25 XJ1-5/6 2 3 4 5 L202/203 120Ω Figure 6-42 Electrical schematic of turntable, Wechai WP3.2/China Stage IV-Hengli multi-way valve © Dec. 2022 6-48 TB28J Plus Maintenance Manual...
Page 139 L105 L106 IN_48 OUT_23 IN_49 OUT_26 IN_50 OUT_25 H100 HG100 S116 SB100 Figure 6-43 Electrical schematic of platform, Cummins QSF2.8/China Phase 3, Deutz TD/D2.9 L4/ US Phase 4/Euro Phase 5, hydraulic generator TB28J Plus Maintenance Manual 6-49 © Dec. 2022...
Page 140 DT15b V(C)_IN_60 PWM_OUT_39 V(C)_IN_56 PWM_OUT_40 IN_47 OUT_24 H103 L105 L106 IN_48 OUT_23 IN_49 OUT_26 IN_50 OUT_25 H100 HG100 S116 SB100 Figure 6-44 Electrical schematic of platform, WEICHAI WP3.2, Yuchai YCF3050/China Phase 4 © Dec. 2022 6-50 TB28J Plus Maintenance Manual...
Page 141 V(C)_IN_59 PWM_OUT_38 DT15b V(C)_IN_60 PWM_OUT_39 V(C)_IN_56 PWM_OUT_40 IN_47 OUT_24 H103 L105 L106 IN_48 OUT_23 IN_49 OUT_26 IN_50 OUT_25 H100 HG100 S116 SB100 Figure 6-45 Electrical schematic of platform, Deutz TD2011L04i/US Phase 3 TB28J Plus Maintenance Manual 6-51 © Dec. 2022...
Page 142 REPAIR PROCEDURES *B05 (1.0) (1.0) *205 (1.0) 250Ω/5W (10.0) (16.0) 150A (2.5) (70.0) *K44 BAT2 BAT1 P&t Figure 6-46 Electrical schematic of engine，WEICHAI WP3.2/China Phase 4 © Dec. 2022 6-52 TB28J Plus Maintenance Manual...
Page 143 REPAIR PROCEDURES *205 (1.0) (1.0) 250Ω/5W (10.0) (2.5) (70.0) 150A (16.0) BAT2 BAT1 t° v° v° Figure 6-47 Electrical schematic of engine, Yuchai YCF3050/China stage 4 TB28J Plus Maintenance Manual 6-53 © Dec. 2022...
Page 144 REPAIR PROCEDURES Figure 6-48 Electrical schematic of hydraulic generator (Australia) © Dec. 2022 6-54 TB28J Plus Maintenance Manual...
Page 145 REPAIR PROCEDURES Figure 6-49 Electrical schematic of hydraulic generator (North America) TB28J Plus Maintenance Manual 6-55 © Dec. 2022...
Page 147: Control System
Therefore, personnel who qualified personnel who have been professionally have not been professionally trained and authorized trained and authorized by Sinoboom, otherwise the by Sinoboom cannot disassemble their housings, consequences will be at your own risk. otherwise moisture and dust will enter the internal mechanism and normal operation will not be guaranteed.
Page 148 Proportional Valve EAT Info Engine Info Engine Fault Diagnoses Turntable Info Turntable Panel Info Platform Panel Info-Input Platform Panel Info-Output Platform Info Alarm Info Alarm Info Fault Info Figure 7-1 Display interface navigation diagram © Dec. 2022 TB28J Plus Maintenance Manual...
Page 149: Main Interface After Booting
Figure 7-2 Main interface after booting DESCRIPTION OF ICON FUNCTION Table 7-1 Description Description Icon Icon Configuration Left/Right arrow key Increase key Turntable information TB28J Plus Maintenance Manual © Dec. 2022...
Page 150: Language Setting
/Press to directly return to the previous menu Up/Down arrow key LANGUAGE SETTING Figure 7-3 CONFIGURATION interface 2. Select Language through , and press 1. Press on the main interface to enter to enter LANGUAGE interface. CONFIGURATION interface. © Dec. 2022 TB28J Plus Maintenance Manual...
Page 151: Test-Run Information
3s to complete the calibration (the icon before the selected option is switched from , indicating calibration succeeded, and the corresponding actual value will be changed). TB28J Plus Maintenance Manual © Dec. 2022...
Page 152: Weight Calibration
7. If re-calibration is required, press to return to the TEST-RUN INFO interface, then re-enter the WEIGHT CALIBRATION interface, and repeat the previous step. © Dec. 2022 TB28J Plus Maintenance Manual...
Page 153: Advanced Setting
CONTROL SYSTEM ADVANCED SETTING Personnel who have not been professionally trained and authorized by Sinoboom are not allowed to modify the advanced setting (including sensor configuration, turntable enable, standardization, proportional configuration, parameter restore/save and reserved setting); otherwise they will be responsible for the consequences.
Page 154: Standardization
KCS standard ( ) will be displayed in the upper right corner of the main interface. • In D/B mode, driving function and boom actions can be performed at the same time. © Dec. 2022 TB28J Plus Maintenance Manual...
Page 155: Proportional Configuration
Minimum current: refers to the starting current of actions, which affects the starting and inching performance of actions. The minimum current should be set to a value that allow the action to just TB28J Plus Maintenance Manual © Dec. 2022...
Page 156 TB Lift Up Inspect (Up) Condition of fully raising: up limit switch is triggered or the articulated boom is positioned at an angle bigger than the set value. © Dec. 2022 7-10 TB28J Plus Maintenance Manual...
Page 157: Parameter Restore/Save
Notes: All parameters can be adjusted within 0~100. Parameter restore/save 1. On the ADVANCED SETTING interface, select Parameter Restore/Save through , and press to enter PARAMETER RESTORE/SAVE interface. Figure 7-19 PARAMETER RESTORE/SAVE interface TB28J Plus Maintenance Manual 7-11 © Dec. 2022...
Page 158: System Information
• The configuration of sensors is subject to the actual machine configuration. Figure 7-20 SYSTEM INFO interface Figure 7-22 SENSOR INFO 1 © Dec. 2022 7-12 TB28J Plus Maintenance Manual...
Page 159: Digital Input Information
Figure 7-26 OUTPUT INFO 1 interface the machine meets the requirements. • The configuration of switches is subject to the actual machine configuration. TB28J Plus Maintenance Manual 7-13 © Dec. 2022...
Page 160: Proportional Information
EAT INFO interface, and the status indicator light will be on. At this time, it is necessary to contact the engine manufacturer for EAT. Figure 7-29 ENGINE INFO interface © Dec. 2022 7-14 TB28J Plus Maintenance Manual...
Page 161 Standstill regeneration is requested, but Fast since the driver has ignored the request for a flashi- long time, the standstill regeneration can only be completed through the DEUTZ diagnostic tool. TB28J Plus Maintenance Manual 7-15 © Dec. 2022...
Page 162 Regeneration function is being executed NCD is not working NCD indicator light (- Solid Yanmar only) NCD is working Regeneration prohibiting Conditions prohibiting active regeneration do indicator light (Yuchai only) not exist © Dec. 2022 7-16 TB28J Plus Maintenance Manual...
Page 163: Turntable Panel Information
• The configuration of switches on the turntable panel is subject to the actual machine configuration. TB28J Plus Maintenance Manual 7-17 © Dec. 2022...
Page 164: Alarm Information
Figure 7-40 FAULT INFO interface 1 Figure 7-38 JOYSTICK INFO interface 3. Press successively to return to the main interface, and power off the machine as required. © Dec. 2022 7-18 TB28J Plus Maintenance Manual...
Page 165 BMS Fault Code Description for Lithium Battery section in the Maintenance Manual (if the machine is equipped with any lithium battery). 5. Press successively to return to the main interface, and power off the machine as required. TB28J Plus Maintenance Manual 7-19 © Dec. 2022...
Page 167: Appendix 1: Prepare The Work Record Before Delivery
2. Use the table to record the results. After each section is complete, mark the appropriate box. 3. Record the inspection results. If any inspection result is “NO”, the machine must be stopped, and then re- inspected after repair is completed, and the box marked “REPAIRED” shall be checked. TB28J Plus Maintenance Manual © Dec. 2022...
Page 169: Appendix 2: Repair & Inspection Report
A-14 Functional Tests A-15 Perform Maintenance after 30 Days A-16 Perform Oscillate Cylinder Exhausting Checklist B Procedures REPAIRED/ YES/Machine is NO/Machine Has Problem Machine Has Items in Good Damage or Description Been Repaired Condition Malfunction TB28J Plus Maintenance Manual © Dec. 2022...
Page 170 B-17 Inspect Counterbalance Valve Locking B-18 Inspect Electrical Wiring B-19 Inspect the Battery B-20 Test Oscillate Outriggers B-21 Test Drive Speed B-22 Inspect Emergency Lowering B-23 Inspect Tilt Protection B-24 Test Braking Distance © Dec. 2022 TB28J Plus Maintenance Manual...
Page 171 D-3 Replace Hydraulic Oil D-4 Replace Hydraulic Tank Suction Filter D-5 Replace Coolant and Coolant Hoses (water-cooled engine) D-6 Replace Fuel Hoses D-7 Inspect Boom Wear Pads User Inspector Signature Inspection Date Inspector Title TB28J Plus Maintenance Manual © Dec. 2022...
Page 172 4. Record the inspection results. If any inspection item is marked as “NO”, the machine must be stopped and re- inspected after repair is completed and the box marked "REPAIRED” shall be checked. Select the appropriate inspection procedure based on the inspection type. © Dec. 2022 TB28J Plus Maintenance Manual...
Page 173: Appendix 3: Major Modification And Repair Record
Modification/Repair” in the form will be “Good” and the machine can be used. If either inspection result is “NO”, the machine must be re-inspected after the repair is completed until the machine is in “Good” condition before continuing to use the machine. TB28J Plus Maintenance Manual © Dec. 2022...
Page 174 Solution s Alw ays For B et t er A ccess Solution s Always for Better Access Solutions AS/N ZS Hunan Sinoboom Intelligent Equipment Co., Ltd. 长沙市宁乡高新技术产业园区金洲大道东 128 号 No.128, East Jinzhou Avenue, Ningxiang High-tech Industrial Park, Changsha, Hunan, China 市宁乡高新技术产业园区金洲大道东...

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