BRADEN CH280 Installation Maintenance And Service Manual

Planetary hoist

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INSTALLATION, MAINTENANCE,

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LIT2423 R7

November 2018

Printe d in USA

CH210 and CH280

Planetary Hoist

AND SERVICE MANUAL

WRITE HOIST SERIAL NUMBER BELOW

First 2 numbers indicate

year manufactured

For serial number location, see Page 4

CH210

CH280

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Summary of Contents for BRADEN CH280

Page 1 CH210 CH280 CH210 and CH280 Planetary Hoist INSTALLATION, MAINTENANCE, AND SERVICE MANUAL WRITE HOIST SERIAL NUMBER BELOW First 2 numbers indicate year manufactured For serial number location, see Page 4 Visit our Web site at www.paccarwinch.com for the most comprehensive collection of winch, hoist, and drive information on the Internet.
Page 2: Table Of Contents
Table of Contents Foreword ......................3 Model Identification..................4 Explanation of Model Number ................ 4 General Safety Recommendations..............5 Basic Operation ....................6 Hoist Installation ..................... 8 Wire Rope Installation ..................8 Hydraulic Circuit ................... 10 Preventive Maintenance ................11 Recommended Gear Oil ................12 Inspection, Testing Procedure ..............
Page 3: Foreword
The following service instructions have been prepared to provide assembly, disassembly and maintenance information for the BRADEN Model CH Series 3 hoist. It is suggested that before doing any work on these units, all assembly and disassembly instructions should be read and understood.
Page 4: Model Identification
MODEL IDENTIFICATION Model number Serial number MODEL NUMBER AND SERIAL NUMBER When information on a hoist is needed, always refer to the model number and serial number. Both are located on the top of the motor-side end plate as indicated above. EXPLANATION OF MODEL NUMBER CH 210 A - 36 110 - 01 - 1 Gear...
Page 5: General Safety Recommendations
23. The BRADEN wire rope anchors supplied with CH210 hoists are not designed to support the rated load of 7. Inspect rigging, hoist and hydraulic hoses at the begin- the hoist. ALWAYS maintain a minimum of five wraps ning of each work shift.
Page 6: Basic Operation
BASIC OPERATION DESCRIPTION OF HOIST The static brake system has three operating compo- nents: The hoist is made up of the following subassemblies: 1. Hydraulic motor and brake valve 1. Spring-applied, multiple friction-disc static brake 2. Drum, drum closure, ball bearings and oil seals 2.
Page 7 The static brake is released by the brake valve pilot pres- When lowering a load slowly for precise positioning, no sure at a pressure lower than that required to open the oil flow actually occurs through the hoist motor. The pres- pilot operated spool valve.
Page 8: Hoist Installation
180°F (82°C). A temperature between 120–140°F mum allowable back pressure. The standard CH210A/ (49–60°C) is generally considered optimum. CH280 hoist is supplied with the motor internally In general terms: For continuous operation at ambi- drained. If high back pressures are encountered, the ent temperatures between 50–110°F (10–43°C), use...
Page 9 Using a hammer and brass drift, drive the wedge as deep the BRADEN Product Support Department at 918-251- into the pocket as possible to ensure it is fully seated and 8511 to determine the proper wedge size. no further movement is detected. Applying a load on the wire rope will also help seat the wedge in the pocket.
Page 10: Hydraulic Circuit
HYDRAULIC CIRCUIT SINGLE-SPEED MOTOR CIRCUIT TWO-SPEED MOTOR CIRCUIT HOIST ASSEMBLY W/BRAKE VALVE HOIST ASSEMBLY W/BRAKE VALVE & STATIC BRAKE & STATIC BRAKE BRAKE VALVE HOIST BRAKE BRAKE VALVE HOIST BRAKE CONTROL VALVE 2-SPEED SELECTOR VALVE CONTROL VALVE PUMP PUMP WITH AUXILIARY BRAKE HOIST ASSEMBLY W/BRAKE VALVE &...
Page 11: Preventive Maintenance
For simplicity, BRADEN has listed available products in each temperature range that have been tested and found 4. Wire Rope to meet our specifications. This is not to say that other Inspect entire length of wire rope according to wire rope lubricant brands would not perform equally as well.
Page 12: Recommended Gear Oil
Range B Omala S2 G 150 Mobilgear 600 XP 150 Gear Compounds EP 150 Meropa 150 Range C Mobilgear SHC 150 Omala S4 GX 150 CH210/CH280 Planetary Hoist Oil Capacity Pints Quarts Litre CH210-01 (before 7/2003) 16.1 CH210-01 (after 7/2003) 11.5 10.9...
Page 13: Inspection, Testing Procedure
BRADEN recommends the following inspection, testing, and preventive maintenance procedures. For additional details, refer to BRADEN publication PB-308. Inspection, testing, and preventive maintenance requirements are divided into several categories: Pre-use, Quarterly, Semiannual and Annual as outlined below. The Installation, Maintenance, and Service Manual for each model provides specific instructions for maintenance and service.
Page 14 Alternate inspection periods may be used if approved in writing by BRADEN. Those that are interested in an alter- nate inspection period should submit a written proposal to BRADEN that includes typical duty cycle for the hoist along with a detailed description of the preventive maintenance program for these hoists.
Page 15 The crane or hoist is to be used to handle personnel only if it can be shown there is no less hazardous way of carrying out the job. In these situations, all safety precautions must be strictly adhered to. BRADEN recommends adherence to the latest revision of API 2D (RP 2D) and/or ANSI/ASME standard B30.5 and/or OSHA and/or other ap-...
Page 16: Troubleshooting
TROUBLESHOOTING If a hoist ever exhibits any sign of erratic operation, or load control difficulties (load creeping or chattering) appropriate troubleshooting tests and repairs should be performed immediately. Continued operation in this manner may result in property damage, serious personal injury, or death. TROUBLE PROBABLE CAUSE REMEDY...
Page 17 TROUBLE PROBABLE CAUSE REMEDY Oil leaks from vent plug 1. Same as A2. Same as A2. 2. Motor seal may be defective as a System back pressure must not ex- result of high system back pres- ceed 150 PSI. Inspect hydraulic sys- sure or contaminated oil.
Page 18 TROUBLE PROBABLE CAUSE REMEDY TROUBLE “D” CONTINUED FROM B. Apply a stall pull load on the hoist PREVIOUS PAGE while monitoring pressure. The hoist will not raise the rated C. Compare gauge reading to hoist load. specifications. Adjust relief valve as required.
Page 19 TROUBLE PROBABLE CAUSE REMEDY Hoist chatters while raising rated 1. Same as D2. Same as remedies for Trouble D2. load. 2. Hydraulic oil flow to motor may be Same as remedies for Trouble E2. too low. 3. Controls being operated too quick- Conduct operator training as re- quired.
Page 20: Exploded-View Drawings
BRADEN CH210 COMPONENTS Hoist Assembly...
Page 21: List Of Components
Cable Drum Capscrew (Special) Tie Plate Ball Bearing Ball Bearing Thrust Washer CH210 Output Planet Carrier Assembly Thrust Washer O-Ring (See Page 29 for CH280) Seal Seal ITEM DESCRIPTION QTY. Cable Wedge - Not Shown Output Planet Carrier Plug, O-Ring Flush...
Page 22 Overrunning Clutch Assembly ITEM DESCRIPTION QTY. Outer Race Retaining Ring Ball Bearing Over-running Clutch Retaining Ring Inner Race BRAKE CYLINDER ASSEMBLY CH210 CH280 54:1 36:1 50:1 ITEM DESCRIPTION Brake Cylinder Motor Adapter Brake Disc Friction Disc Seal Back-Up Ring Pressure Plate...
Page 23 Motor Group ITEM DESCRIPTION QTY. Cap Nut Needle Valve Male Run Tee Hydraulic Motor Brake Valve Capscrew (1/2 - 13 X 4-1/2 G8 Sock Hd) O-Ring Swivel Tee Fitting Hose Assembly Elbow Fitting Elbow Fitting Elbow Fitting Capscrew (1/2 - NC x 1-1/2 G5) Lockwasher (1/2) Adapter Adapter...
Page 24: Hoist Disassembly
HOIST DISASSEMBLY 1. Remove the wire rope from the hoist drum and align the drain plug in the drum with the lowest hole in the support end plate before removing the hoses and mounting bolts. After the hoist is removed from its mounting, clean the outside surfaces.
Page 25 7. Remove the overrunning clutch assembly (Item 1) 10. Install two eyebolts into top end of ring gear. Lift ring from the center of the brake cylinder assembly. gear out of drum. Remove planet gear sets from drum. Refer to Overrunning Clutch Assembly Service section in this manual for additional information.
Page 26: Planet Carrier Service
PLANET CARRIER SERVICE PRIMARY PLANET CARRIER 3. Now you can remove the planet shafts, bearings, thrust washers and gears. Thoroughly clean all parts CH210 ONLY and inspect for damage and wear. The bearing rollers should not exhibit any irregularities. If the rollers show Disassembly any sign of spalling, corrosion, discoloration, material displacement or abnormal wear, the bearing should...
Page 27 3. Note that the roll pin is slightly recessed into the carri- er when properly installed. With a center punch, stake the carrier next to the pin hole as shown. This will dis- tort the hole and prevent the pin from backing out in operation.
Page 28 PRIMARY PLANET CARRIER CH280 ONLY Disassembly Assembly 1. Place the planet carrier on a clean work surface with the roll pin side down. 2. Place a planet gear (Item 2) on a clean work surface resting on the gear teeth. Apply grease to the loose rollers (Item 4) and set in the lower half of the planet gear.
Page 29 OUTPUT PLANET CARRIER CH280 ONLY Disassembly Assembly 1. Place the output carrier on a clean work surface with the drive pins down. Install the output thrust plate (Item 8) into the center of the carrier. Follow safety procedures and wear safety glasses when operating a hydraulic press.
Page 30: Overrunning Clutch Service
OVERRUNNING CLUTCH SERVICE Assembly Failure to assemble the overrunning clutch assembly with all parts oriented correctly may result in reduced brake effectiveness, which may lead to loss of load con- trol and result in property damage, injury, or death. 1. If both bearings (Item 44) have been removed from the inner race, install one of them now.
Page 31: Brake Cylinder Service
BRAKE CYLINDER SERVICE Disassembly Clean and Inspect CAUTION The motor adapter is under spring tension from the brake springs. Loosen each of the capscrews one turn at a time until spring tension is released. 1. Stand the brake assembly on the splined end, with the motor adapter upward.
Page 32 3. Place steel disc on flat surface and check for distortion with a straight edge. Check surface for signs of ma- CAUTION terial transfer or excessive heat. Replace steel disc if Failure to replace brake springs as a set may result in distorted, heat discolored, or mechanically damaged.
Page 33 5. Place the brake cylinder on a clean work surface with 8. Turn the entire assembly over and install the four cap- the splined end down. Install the spring spacer (Item screws and lockwashers. After the capscrews make 10), then the springs (Item 9). contact with the motor adapter, evenly tighten them one turn at a time until the motor adapter is drawn tight against the brake cylinder, then torque to the recom-...
Page 34: Hoist Assembly
HOIST ASSEMBLY 4. Lower the output planet carrier assembly into the ca- ble drum and engage the three lugs on the carrier into the three holes in the drum. Be sure the carrier is firmly seated against the web in the drum. 5.
Page 35: Recommended Bolt Torque
11. Install the two tie plates (Item 61) between the two end plates of the hoist, using all 20 BRADEN SPE- 15. After the hoist assembly is complete, check all cap- CIAL capscrews and lockwashers (Items 60 and 52).
Page 36: Brake Valve Service
Main Piston Spring O-ring Backup Ring O-ring Backup Ring Most CH Series hoists are supplied with our BRADEN O-ring 1.5-inch brake valve. It is a reliable hydraulic valve with internal components manufactured to close tolerances. Pipe Plug Due to these close tolerances, several individual parts...
Page 37 ASSEMBLY O-RING 2. Remove the spool spring retainer and spool spring. Remove the spool plug and carefully remove the spool assembly. Remove the damper piston from the spool. The piston will come out of the spool slowly, because of a partial vacuum formed between the two. Use extreme care to avoid damaging the polished surfaces of either piece BACK-UP RING...
Page 38 6. The initial lowering pressure should be no lower than thorough inspection of the failed components. 575 PSI for the 1.5-inch BRADEN brake valve, Part Number 81609 which is used on most single-speed Preparation motors on CH165A and CH230B planetary hoists.
Page 39: Metric Conversion Table
METRIC CONVERSION TABLE English to Metric Metric to English LINEAR inches (in.) X 25.4 = millimeters (mm) millimeters (mm) X 0.03937 = inches (in.) feet (ft.) X 0.3048 = meters (m) meters (m) X 3.281 = feet (ft.) miles (mi.) X 1.6093 = kilometers (km) kilometers (km)

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BRADEN CH280 Installation Maintenance And Service Manual

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