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BRADEN PD12C Series Installation Maintenance And Service Manual

Hydraulic winch
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SERIES
PD12C
PD15B
PD17A
INSTALLATION, MAINTENANCE AND SERVICE MANUAL
LIT2103 R3
07/2007
PRINTED IN U.S.A.
BRADEN
HYDRAULIC WINCH
PACR
WINCH DIVISION
P.O. BOX 547 BROKEN ARROW, OK U.S.A. 74013
PHONE (918) 251-8511 FAX (918) 259-1575
www.paccarwinch.com

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  • Page 1 BRADEN SERIES PD12C PD15B PD17A HYDRAULIC WINCH INSTALLATION, MAINTENANCE AND SERVICE MANUAL PACR WINCH DIVISION P.O. BOX 547 BROKEN ARROW, OK U.S.A. 74013 LIT2103 R3 07/2007 PHONE (918) 251-8511 FAX (918) 259-1575 PRINTED IN U.S.A. www.paccarwinch.com...
  • Page 3 The following service instructions have been prepared to provide assembly, disassembly and maintenance information for the BRADEN Model PD12C, PD15B and PD17A series winch. It is suggested that before doing any work on these units, all assembly and disassembly instructions should be read and understood.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS GENERAL SAFETY RECOMMENDATIONS ............PAGE 3 THEORY OF OPERATION....................4 WINCH INSTALLATION ....................6 RECOMMENDED FASTENER TORQUE ................7 WIRE AND BRAIDED ROPE INSTALLATION ..............8 TWO SPEED MOTOR CASE DRAIN PLUMBING ............8 PREVENTIVE MAINTENANCE – RECOMMENDED OIL CHANGE INFORMATION ..........9 TROUBLE SHOOTING ....................11 WINCH DISASSEMBLY ....................15 EXPLODED VIEW DRAWING AND PARTS KEY ............18-19 PLANET CARRIER SERVICE ..................20...

  • Page 5: General Safety Recommendations

    16. Do not use knots to secure or attach wire rope. blocked securely before servicing, adjusting, or 17. The BRADEN designed wire rope anchors are repairing winch. capable of supporting the rated load when installed 2.

  • Page 6: Theory Of Operation

    THEORY OF OPERATION DESCRIPTION OF WINCH Figures 2, 3 and 4. The winch has four basic component parts: The static brake system has three operating 1. Winch base components: 2. Hydraulic motor and brake valve 1. Spring Applied, Multiple Friction Disc Static 3.
  • Page 7 Figure 4 & 4. The friction brake within the winch will completely release at a pressure lower than that required to open the brake valve. The extent to which the brake valve Motor opens will determine the amount of oil that can flow Static Brake through it and the speed at which the load will be lowered.

  • Page 8: Winch Installation

    If high back pressures are encountered, the motor may be externally drained directly to tank to improve motor seal life. For back pressures exceeding 150 psi (1,030 kPa) consult BRADEN Service Department. 6. The winch should be mounted perpendicular to an...

  • Page 9: Recommended Fastener Torque

    (open center, for applications colder than 10°F (-12°C), contact open port). the BRADEN Service Department. The use of multi-viscosity oils is generally not recommended. 8. High quality hydraulic oil is essential for satisfactory performance and long hydraulic 9.

  • Page 10: Wire And Braided Rope Installation

    WIRE AND BRAIDED Correct Installation ROPE INSTALLATION ANCHORING WIRE ROPE Drive from this side Wedge and wire rope fully seated in pocket Figure 7 Figure 8 Incorrect Installation Wedge pulled Wedge not Take the free end of the wire rope and insert it too far through fully seated anchor pocket...

  • Page 11: Preventive Maintenance

    5. Install a case drain hose for the tee directly to the reservoir. Minimum hose size is –6, 3/8 in. (9.5 mm). Maximum drain line back pressure is 100 PSI (7 Kg/cm2) measured at the motor case drain port. Parts needed for modification: Item Description 25663...
  • Page 12 (3) months, or in accordance with the equipment manufacturer’s recommendations. For simplicity, BRADEN has listed one (1) readily 5. Wire Rope available product in each temperature range which Inspect entire length of wire rope according to wire has been tested and found to meet our rope manufacturers recommendations.

  • Page 13: Troubleshooting

    OIL CAPACITIES: (PD12C/PD15B) 01, 02 & 22 DRUM - 6 PINTS 04, 05 & 23G DRUM – 7 PINTS (PD17A) - 14 PINTS NOTE: Capacities are approximate. Refer to “Oil Level” earlier in this section TROUBLESHOOTING WARNING If a winch ever exhibits any sign of erratic operation, or load control difficulties (i.e. load creeping or CAUTION chattering) appropriate troubleshooting tests and repairs should be performed immediately.
  • Page 14 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 result of high system back pressure exceed 150 psi. Inspect hydraulic or contaminated oil.
  • Page 15 TROUBLE PROBABLE CAUSE REMEDY TROUBLE “D” CONTINUED B. Apply a stall pull load on the winch FROM PREVIOIUS PAGE while monitoring pressure. C. Compare gauge reading to winch specifications. Adjust relief valve as required. NOTE: If pressure does not increase in proportion to adjustment, relief valve may be contaminated or worn out.
  • Page 16 TROUBLE PROBABLE CAUSE REMEDY Winch “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 Conduct operator training...

  • Page 17: Winch Disassembly

    • Inspect all replacements parts, prior to installation, to detect any damage which might have occurred in shipment. • Use only genuine BRADEN replacement parts for optimum results. Never reuse expendable parts such as oil seals and O-rings. • Inspect all machined surfaces for excessive wear or damage .
  • Page 18 ring and back-up ring from the motor support. Refer to “Motor Support-Brake Cylinder Service” for additional information. 8. Remove the brake cylinder capscrews and install two (2) capscrews and a short piece of chain into the motor support mounting bolt holes. Using the chain as a handle, lift the brake cylinder out of the drum and base, being careful to avoid damaging the sealing or bearing surfaces.
  • Page 19 11. Remove the primary sun gear and thrust washer from the primary planet carrier. 14. Remove the output planet carrier from the drum. Refer to “Planet Carrier Service” for additional information. 15. Stand winch on motor end with bearing support up;...

  • Page 20: Exploded View Drawing And Parts Key

    BRADEN PD12C/PD15B/PD17A COMPONENTS PD17A winches use only 1 each of items 52 and 53 due to the shoulder on item 50. (shoulder is toward motor) PD17A winches use an internal retaining ring (item 16, not shown) to hold item 38 into the output planet carrier.
  • Page 21 PD12C/PD15B/PD17A PARTS KEY MOTOR CASE DRAIN HOIST To Item 1 LOWER For actual part numbers, refer to: PD12C Material List PB-109 PD15B Material List PB-229 PD17A Material List LIT2099 – 19 –...

  • Page 22: Planet Carrier Service

    PLANET CARRIER SERVICE OUTPUT PLANET CARRIER DISASSEMBLY 3. Now you can remove the planet shafts, bearings, spacer, thrust washers and gears. Thoroughly clean all parts and inspect for damage and wear. The bearing rollers should not exhibit any irregularities. If the rollers show any sign of 1.
  • Page 23 2. Insert two (2) bearings and a bearing spacer into 4. Note that the roll pin is slightly recessed in the a gear with the spacer between the bearings. carrier when properly installed. With a center Place a thrust washer on each side of the gear punch, stake the carrier next to the pin hole as and position in a carrier opening.

  • Page 24: Motor Support-Brake Cylinder Service

    MOTOR SUPPORT-BRAKE CYLINDER SERVICE NOTE: Starting mid-year 1996, Braden changed the steel brake separator discs from a splined tooth design to a lobed design. This required a change to the motor support and brake cylinder and the addition of a spring spacer.
  • Page 25 ASSEMBLY 1. Begin assembly by placing motor support on 3. Place friction brake disc on flat surface and check workbench with motor mounting surface down. for distortion with a straight edge. Friction material Install new O-ring and back-up ring as shown. should appear even across entire surface with groove pattern visible.
  • Page 26 6. Lubricate the brake piston seal and motor support 3. Insert first, a steel brake disc against the spacer sealing surface with petroleum jelly or hydraulic oil. followed by a friction brake disc then alternate steel Install new piston seal to motor support, seal lip and friction discs until seven (7) friction and eight down.
  • Page 27 BRAKE CYLINDER PRESSURE TEST 8. Install pressure plate into brake cylinder followed by the piston back-up ring. The close-fitting piston back-up ring may be depressed slightly to one side 1. Install the –4 J.I.C. fitting into the brake release to lodge the back-up ring in the brake cylinder bore port.

  • Page 28: Brake Clutch Service

    BRAKE CLUTCH SERVICE DISASSEMBLY 1. Remove the snap ring and sprag bushing retainer 4. Next, slide the sprag clutch out, inspect the sprag from one end only. clutch closely for abnormal wear, cracks, pitting or corrosion. Check small clips for breakage or bright NOTE: The brake clutch on PD17A winches spots;...
  • Page 29 2. Turn the assembly over and install the sprag clutch in the bore of the outer race. 6. Turn the assembly over with the snap ring down. Install the second retainer and snap ring. Make 3. Press the remaining bushing into the race. Again, certain the snap ring is seated in the groove make sure the bushing is against the shoulder.

  • Page 30: Winch Assembly

    WINCH ASSEMBLY NOTE: PD15B winches ONLY The drum closure will not fit through the opening in the base. For winches with a three piece base, first assemble the bearing support side plate (91) to the base plate (90). Go to step 1 and follow the assembly procedure. Install the motor end side plate and tie bar(s) after installing the drum closure in step 10.
  • Page 31 CAUTION Be sure the vent plug is located above the horizontal centerline for the intended application. Oil leakage may occur if vent is positioned incorrectly. 4. Tighten the bearing support capscrews to the recommended torque. 8. Install the primary planet carrier, meshing the planet gears with the ring gear and the planet housing with the output sun gear.
  • Page 32 WARNING WARNING CAUTION Be certain the snap ring is seated in the groove in the splined bore of the inner race. This snap ring will 10. Lubricate the O-ring and drum opening with petroleum jelly or gear oil and install the drum keep the brake clutch assembly correctly positioned closure into the drum.
  • Page 33 15. Install a new O-ring on the motor pilot then lubricate with petroleum jelly or gear oil. NOTE: The following caution DOES NOT apply to PD17A winches. Proceed to step 16. CAUTION Care must be taken to assure the primary thrust plate remains properly located in its counterbore when the motor is installed for the first time, or is being reinstalled on the winch.

  • Page 34: Brake Valve Service

    BRAKE VALVE SERVICE BRAKE VALVE ASSEMBLY The BRADEN brake valve is a reliable hydraulic valve ITEM DESCRIPTION QTY. with internal components manufactured to close Valve Housing (NSS) tolerances. Due to the close tolerances and mating of Check Valve Retainer (NSS)
  • Page 35 ASSEMBLY 1. Install new O-rings on the plug and spring retainers. 4. Remove spool plug and carefully remove spool assembly. 5. Remove the damper piston from the spool. The piston will come out slowly, because of a partial 2. Install new O-rings and back-up rings on the spool vacuum formed as it is removed.

  • Page 36: Reversing Direction Of Drum Rotation

    REVERSING DIRECTION OF DRUM ROTATION (029, 034, 039, 051, 064 & 049/024 motors ONLY) Motor Case Drain Motor Case Drain Brake Lowering Brake Lowering Motor Motor Valve Port Valve Port Hoisting Hoisting Port Port Brake Release Brake Release Circuit Circuit M = Manifold Block “B”...
  • Page 37 7. Before installing the brake clutch, be sure the inner race turns free in the opposite direction the drum will turn to haul-in wire rope. An easy way to check the rotation is to hold the outer race in one hand and rotate the inner race.

  • Page 38: Pd17A Rotation Indicator Proximity Sensor

    PD17A Rotation Indicator Proximity Sensor Some PD17A models have a rotation indicator proximity sensor and hub between the motor and the winch. If the sensor is removed or replaced, use the following procedure for adjustment and testing. Refer to the drawing below for item numbers. Install a new O-ring (item 108) onto motor pilot.
  • Page 39 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)
  • Page 40 FOR BEST RESULTS, ALWAYS USE GENUINE BRADEN PARTS. Copyright 2007 PACCAR Winch Division. All rights reserved.

This manual is also suitable for:

Pd15b seriesPd17a series

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