BRADEN PCD24B Installation Maintenance And Service Manual Download Page 4

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FOREWORD

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.

The minimum service intervals specified are for operating hours of the prime mover.

The following service instructions have been prepared to provide assembly, disassembly and maintenance
information for the BRADEN Model PCD24B Planetary Capstan Drive. It is suggested that before doing any work
on these units, all assembly and disassembly instructions should be read and understood.

Some illustrations in this manual may show details or attachments that are different from your drive. Also, some
components have been removed for illustrative purposes. Illustrations and pictures in this manual are of a 
“typical” unit sold through our distribution channels. Some drives, particularly those sold directly to original 
equipment manufacturers, may differ slightly in appearance.

Whenever a question arises regarding your BRADEN Drive, please contact the BRADEN Service Department for
the latest available information.

The capstan drive Serial Number and
Model Number are stamped into the
housing at the location shown.
Always refer to these numbers when
requesting information or service
parts.

Model Number

Serial Number

EXPLANATION OF MODEL NUMBER

PCD - 24B - 08 - 071 - 01 - H

PCD

Designates Planetary Capstan Drive

24

Designates Maximum Output Torque (24,000 lb-in.)

B

Designates Model Series Relating to Design Changes

08

Designates Overall Gear Ration (7.75:1)

071

Designates Motor Displacement in cu in./rev (071 = 7.1)

01

Designates Output Shaft Configuration (01 = bayonet capstan mounting; 03 = fixed capstan)

H

Designates High Capacity Option

Summary of Contents for PCD24B

Page 1: ...STALLATION MAINTENANCE AND SERVICE MANUAL LIT2152 REV 2 9 2007 PACRWINCH DIVISION P O BOX 547 BROKEN ARROW OK U S A 74013 PHONE 918 251 8511 FAX 918 259 1575 www paccarwinch com PRINTED IN USA COPYRIG...

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Page 3: ...TION 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...

Page 4: ...r illustrative purposes Illustrations and pictures in this manual are of a typical unit sold through our distribution channels Some drives particularly those sold directly to original equipment manufa...

Page 5: ...ed in the Preventive Maintenance section of this manual 10 Be sure of equipment stability before operating drive 11 The drives described herein are neither designed nor intended for use or application...

Page 6: ...eased In operation the static brake must be hydraulically released when the drive is operated in either direction When the control valve handle is moved in either direc tion hydraulic pressure is pilo...

Page 7: ...ete brake application The directional control valve must be a three position four way valve with a motor spool such that when the valve is in the center position both work ports are open to tank open...

Page 8: ...as the 088 motor option Consult publication PB 215 for other motor dimensions and performance data HYDRAULIC CIRCUITS Dimension A Standard Unit 4 75 in diam High Capacity Option 6 00 in diam DRIVE CON...

Page 9: ...t clean and unobstructed Clean the vent in solvent be sure it is not plugged and re install it in the drive Do not paint over the vent or replace it with a solid plug 3 Hydraulic System The original f...

Page 10: ...10 20 30 40 50 oC NOTE SHADED TEMPERATURE RANGE IN THE CHART ABOVE NOT RECOMMENDED FOR SEVERE APPLICATIONS SUCH AS OFFSHORE CRANES SUSTAINED FAST DUTY CYCLES OR FREQUENT LIFTING i Texaco Shell Meropa...

Page 11: ...ll cause the pump to make a whining noise Check oil level in the reservoir Check the suction line for damage externally and internally Replace suction line if necessary 5 The drive may be mounted on a...

Page 12: ...0 4 4 4 3 3 5 4 2 3 7 4 4 3 4 2 6 2 7 2 8 3 0 4 5 4 6 2 4 2 4 3 6 2 9 2 5 2 3 2 2 3 3 3 2 3 1 3 1 1 2 4 1 3 9 3 8 1 2 8 9 7 6 5 1 6 1 5 1 4 1 7 1 9 1 7 1 6 1 8 4 0 1 3 2 0 2 1 1 5 0 5 3 4 5 4 5 2 5 1...

Page 13: ...BRAKE PISTON 1 26 BRAKE PISTON SEAL 1 27 FRICTION DISC 7 28 STEEL DISC 8 29 O RING 1 30 BACKUP RING 1 31 BRAKE COUPLING 1 32 LOCKWASHER 4 33 CAPSCREW HEX HEAD 4 34 O RING 2 35 MOTOR 1 36 BRAKE VALVE B...

Page 14: ...lic motor Operate the pump at full throttle and monitor pressure in neutral and haul in positions If the pressure is greater than 50 PSI check for restrictions in the return line from the winch to the...

Page 15: ...sive hydraulic oil temperatures may be caused by A Plugged heat exchanger B Too low or too high oil level in hydraulic reservoir C Same as A 1 D Hydraulic pump not operating efficiently Thoroughly cle...

Page 16: ...res DRIVE DISASSEMBLY 1 Disconnect and remove the hose item 43 between the brake valve block and the brake cylinder Remove the two capscrews holding the motor to the motor sup port and remove the moto...

Page 17: ...han 0 015 in 0 4 mm when compared to unworn area of teeth This completes disassembly of the capstan drive PLANET CARRIER SERVICE Disassembly 1 Each planet gear is removed by first driving the rollpin...

Page 18: ...t edge Check surface for signs of mate rial transfer or heat Replace steel disc if splines are worn to a point disc is distorted or heat discolored 16 Assembly 1 Insert two bearings with a spacer betw...

Page 19: ...ove in the backup ring 6 Lightly lubricate the brake piston seal with hydraulic oil and install the seal onto the motor support The seal MUST be installed with the wide end down toward the O ring inst...

Page 20: ...anet gear assembly 5 Install a new O ring item 11 onto the brake cylin der item 2 Install the brake cylinder onto the main hous ing being careful that the thrust washer installed in the previous step...

Page 21: ...tall a new O ring item 10 onto the motor pilot and install the motor onto the motor support with two capscrews and lockwashers items 45 46 Torque the capscrews to their proper value 9 Install a hand p...

Page 22: ...s as the applied torque may vary by 10 40 depending upon product used Dry Lubed Dry Lubed Dry Lubed Dry Lubed Torque LB FT Grade 5 Grade 8 1 4 20 28 5 16 3 8 18 24 16 24 7 16 1 2 9 16 5 8 8 6 12 9 17...

Page 23: ...60o F pounds sq in PSI X 6 895 kilopascals kPa kilopascals kPa X 0 145 pounds sq in PSI pounds sq in PSI X 0 0703 kilograms sq cm kg cm2 kilograms sq cm kg cm2 X 14 22 pounds sq in PSI pounds sq in P...

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