BRADEN PCD24B Installation Maintenance And Service Manual

Hydraulic planetary capstan drive

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HYDRAULIC PLANETARY

INSTALLATION, MAINTENANCE AND SERVICE MANUAL

LIT2152 REV. 2

9-2007

PCD24B

CAPSTAN DRIVE

PRINTED IN USA

BRADEN

PACR

P.O. BOX 547 BROKEN ARROW, OK U.S.A. 74013

PHONE (918) 251-8511 FAX (918) 259-1575

www.paccarwinch.com

WINCH DIVISION

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Summary of Contents for BRADEN PCD24B

Page 1 BRADEN PCD24B HYDRAULIC PLANETARY CAPSTAN DRIVE INSTALLATION, MAINTENANCE AND SERVICE MANUAL PACR WINCH DIVISION P.O. BOX 547 BROKEN ARROW, OK U.S.A. 74013 PRINTED IN USA PHONE (918) 251-8511 FAX (918) 259-1575 LIT2152 REV. 2 COPYRIGHT 2007 PACCAR WINCH DIVISION www.paccarwinch.com...
Page 3: Table Of Contents
TABLE OF CONTENTS PAGE FORWORD..........................2 EXPLANATION OF MODEL NUMBER ..................2 GENERAL SAFETY RECOMMENDATIONS ................3 THEORY OF OPERATION......................4 DRIVE INSTALLATION .......................5 TYPICAL INSTALLATION DIMENSION DRAWINGS ..............6 HYDRAULIC CIRCUITS......................6 PREVENTIVE MAINTENANCE....................7 RECOMMENDED PLANETARY GEAR OIL ................8 UNIT WEIGHTS ..........................8 TROUBLE SHOOTING ....................9, 12, 13 EXPLODED VIEW DRAWING AND PARTS KEY..............10-11 CAPSTAN DRIVE SERVICE .....................14 DRIVE DISASSEMBLY ......................14...
Page 4: Forword
Read this entire publication and retain it for future reference. If you have any questions regarding your Braden Capstan Drive or this publication, call the BRADEN Service Department at 1-918-251-8511, 8:00 am to 4:30 pm Central Time, Monday through Friday.
Page 5: General Safety Recommendations
GENERAL SAFETY 11. The drives described herein are neither designed nor intended for use or application to equipment RECOMMENDATIONS used in the lifting or moving of persons. 12. Do not exceed the maximum pressure (PSI or kPa) Safety for operators and ground personnel is of prime or flow (GPM or LPM) stated in the drive specifi- concern.
Page 6: Theory Of Operation
When the control valve handle is moved in either direc- THEORY OF OPERATION tion, hydraulic pressure is piloted to the brake release The PCD24B capstan drive is made up of the follow- piston and routed to the motor at the same time. Oil ing sub-assemblies and parts: flow out of the motor is initially blocked by one of the counterbalance cartridges.
Page 7: Drive Installation
DRIVE INSTALLATION The PCD24B capstan drive should normally be mounted onto the extension shaft, against spring tension, then with the centerline of the output shaft in a horizontal posi- turn counter-clockwise (viewed from the outside) to the tion. The drive may be rotated to any position around stop.
Page 8: Typical Installation Dimension Drawings
TYPICAL INSTALLATION DIMENSION DRAWINGS Mounting dimensions for all units are the same. Drive shown below has the 088 motor option. Consult publication PB-215 for other motor dimensions and performance data. Dimension A Standard Unit 4.75 in. diam. High Capacity Option 6.00 in.
Page 9: Preventive Maintenance
PREVENTIVE operation of the brake and erode bearings, gears and seals. Failure to change gear oil at these sug- MAINTENANCE gested minimum intervals may contribute to inter- mittent brake slippage which could result in property A regular program of preventive maintenance for your damage, severe personal injury or death.
Page 10: Recommended Planetary Gear Oil
Field experience, supported by engineering endurance tests, indicates the use of the proper gear oil and a program of regular preventive maintenance will help provide extended gear train life and reliable winch brake performance. For this reason, BRADEN has published the following specifications to assist in determining which lubricant is best suited to your application.
Page 11: Trouble Shooting
TROUBLE SHOOTING TROUBLE A: CAPSTAN DRIVE WILL NOT PULL MAXIMUM LOAD. PROBABLE CAUSE REMEDY 1. System relief valve may be set too low Install a pressure gauge in the haul-in port and apply a stall pull on the capstan. If pressure is low, increase relief valve setting until recommended pressure is obtained.
Page 13 PCD24B ITEM DESCRIPTION QTY. HOUSING PARTS BRAKE CYLINDER MOTOR SUPPORT OUTPUT SHAFT SEAL TAPERED BEARING CONE TAPERED BEARING CUP TAPERED BEARING CONE TAPERED BEARING CUP O-RING OR GASKET (depending on motor option) O-RING SPLIT RING PLANET CARRIER PLANET GEAR PLANET GEAR SHAFT...
Page 14 Trouble Shooting Continued TROUBLE B: CONSIDERABLE REDUCTION IN LINE SPEED. PROBABLE CAUSE REMEDY 1. Same as A-2. Same as remedy for A-2. 2. Same as A-4. Same as remedy for A-4. 3. Same as A-6. Same as remedy for A-5 and B-4. 4.
Page 15 TROUBLE D continued: THE CAPSTAN WILL NOT LOWER THE LOAD OR NOT LOWER THE LOAD SMOOTHLY. PROBABLE CAUSE REMEDY 6. Control valve handle being operated too quickly. Operate control valve smoothly when starting and stopping a load. Conduct operator training as required. 7.
Page 16: Capstan Drive Service
Inspect all replacement parts prior to installation to detect any damage which might have occurred in shipment. Use only genuine BRADEN replacement parts for opti- mum results. Never reuse expendable parts such as oil seals and O-rings.
Page 17: Planet Carrier Service
replace it with a solid plug. If one of the oil drain plugs was removed, clean the plug and hole, apply a light coat of thread sealing compound to the plug and re-install it into the housing. Thoroughly clean and inspect the hous- ing for damage.
Page 18: Static Brake Service
Assembly 1. Insert two bearings with a spacer between them into a planet gear. Place a thrust race on each side of the gear and position this assembly in the planet carrier. STATIC BRAKE SERVICE Slide the planet gear shaft through the carrier and gear assembly, aligning the pin hole in the shaft with the hole 1.
Page 19: Capstan Drive Assembly
3. Check free length of each brake spring. Minimum free 5. Install backup ring (item 30) onto the motor support length is 15/16 inch (23.8 mm). Check springs for any with the flat side down. Install O-ring (item 29) onto the signs of cracking or failure.
Page 20 5. Install a new O-ring (item 11) onto the brake cylin- der (item 2). Install the brake cylinder onto the main hous- 2. Install both halves of the split ring (item 12) around ing, being careful that the thrust washer installed in the the output shaft and pry firmly into place against the previous step stays in position.
Page 21 9. Install a hand pump with an accurate 0-2,000 psi (0- 13,800 kPa) gauge and shut-off valve to the brake release port. Apply 1,000 psi (6,900 kPa) to the brake and close the shut-off valve. Let the brake stand for five (5) minutes.
Page 22: Bolt Torque Chart
RECOMMENDED FASTENER TORQUE The general purpose torque shown in the chart applies to SAE Grade 5 bolts, studs and standard steel full, thick and high nuts. Higher or lower torques for special applications will be specified such as the use of spanner nuts, nuts on shaft ends, jam nuts and where distortion of parts or gaskets is critical.
Page 23: Metric Conversion Table
METRIC CONVERSION TABLE English to Metric Metric to English LINEAR inches (in.) X 25.4 = millimeters (mm) millimeters (mm) X 0.3937 = 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)