Paccar Braden PD12C Installation Maintenance And Service Manual Download Page 1

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First 2 numbers indicate
year manufactured

WRITE HOIST SERIAL NUMBER BELOW

For serial number location see page 3

LIT2103 R6
July 2017
Printe d in USA

Visit our Web site at www.paccarwinch.com for the most comprehensive collection of winch, hoist, and drive

information on the Internet. Most publications and specification sheets are available for downloading.

Hydraulic Hoist Series

PD12C, PD15B, PD17A

INSTALLATION, MAINTENANCE,

AND SERVICE MANUAL

PD12C,

PD15B, PD17A

Summary of Contents for Braden PD12C

Page 1: ...SA 2017 PACCAR Inc All rights reserved Visit our Web site at www paccarwinch com for the most comprehensive collection of winch hoist and drive information on the Internet Most publications and specif...

Page 2: ...g 10 Preventive Maintenance 10 Recommended Oil Change Information 11 Troubleshooting 12 Hoist Disassembly 16 List of Components 18 Exploded view Drawing 19 Planet Carrier Service 20 Motor Support Brak...

Page 3: ...nt a typical unit sold through our distribution channels Some hoists particularly those sold directly to original equipment manufacturers OEM may differ in appearance and options Model numbers and ser...

Page 4: ...clear of cable rollers cable entry area of fairleads and hoist drum 10 When winding wire rope on the hoist drum never attempt to maintain tension by allowing wire rope to slip through hands Always us...

Page 5: ...ll drive the ring gear drum DUAL BRAKE SYSTEM DESCRIPTION The dual brake system consists of a dynamic brake system and a static brake system The dynamic brake system has two operating components 1 Bra...

Page 6: ...riction brake Figure 5 When the hoist is powered in reverse to lower the load the motor cannot rotate until sufficient pilot pressure is present to open the brake valve Figures 2 3 The friction brake...

Page 7: ...ly and bolt holes are aligned C Evenly tighten bolts to recommended torque 5 Hydraulic lines and components that operate the hoist must be of sufficient size to assure minimum back pres sure at the ho...

Page 8: ...30 60 cSt viscosity at 104 F 40 C and viscosity index of 100 or greater will give good results under normal temperature conditions The use of an oil having a high viscosity index will minimize cold st...

Page 9: ...anchor pocket Loop the wire rope and push the free end about half of the way back through the pocket Install the wedge then pull the slack out of the wire rope The wedge will slip into the pocket and...

Page 10: ...t the motor case drain port ITEM DESCRIPTION QTY PART 1 Plug 4 ORB 1 25663 2 Hose 17 in OAL 4 JIC Fml Svl 4 Hose 1 8 NPT ml 1 13707 3 Tee 4 ORB Branch 4 JIC Run 1 29078 1 2 3 PREVENTIVE MAINTENANCE A...

Page 11: ...r the first one hundred 100 hours of operation then every 1000 operating hours or six 6 months whichever occurs first 7 WARM UP PROCEDURES A warm up procedure is recommended at each start up and is es...

Page 12: ...pilot orifice The diameter of the orifice is approximately 020 inches Clean and install pilot ori fice tightly in the brake valve 2 Check brake cylinder seal as follows a Disconnect the swivel tee fro...

Page 13: ...eservoir Be sure control valve and plumbing is properly sized to hoist motor 3 Oil analysis may indicate contami nation has worn motor shaft and seal Thoroughly flush entire hydraulic sys tem and inst...

Page 14: ...as follows a Install an accurate 0 4000 psi 27 580 kPa gauge into the inlet port of the brake valve b Apply a stall pull load on the hoist while monitoring pressure c Compare gauge reading to hoist s...

Page 15: ...g the fleet angle to be more than 1 1 2 degrees 2 The hoist may not be mounted perpendicular to an imaginary line between the center of the cable drum and the first sheave 3 Could possibly be using th...

Page 16: ...g the hoses and mounting bolts Af ter the hoist is removed from its mounting thoroughly clean the outside surfaces To drain the oil install a short piece of 1 inch pipe in the larger threads of the dr...

Page 17: ...o heel type pry bars placed between the pri mary planet carrier and the drum closure pry upward to remove the drum closure Remove and discard the O ring from the outside of the drum closure Some drum...

Page 18: ...Base 26344 1 023 Bearing support SP only 106459 1 025 Cable drum closure 27866 1 026 Ball bearing 24110 2 027 Oil seal 24109 1 028 O ring 76208 1 029 Seal oil 22818 1 030 Retaining ring external 7057...

Page 19: ...54 51 61 64 63 68 69 59 62 72 66 64 65 59 67 58 60 41 70 To Item 1 B R A K E R E L E A S E HOIST LOWER MOTOR CASE DRAIN PD17A hoists use an internal retaining ring item 16 not shown to hold item 38 i...

Page 20: ...inspected for unusual wear or deformation particularly the cage bars If there is any damage that will impair the cage s ability to separate re tain and guide the rollers properly the bearing should be...

Page 21: ...hole in the carrier with the hole in the planet gear shaft and drive the roll pin into place Always use NEW roll pins 4 Note that the roll pin is recessed approximately 1 16 in 06 mm in the carrier w...

Page 22: ...discs all procedures are the same except where specifically noted DISASSEMBLY 1 After removing the motor support and brake clutch as sembly continue brake cylinder disassembly by removing the spacers...

Page 23: ...ntil seven 7 friction and eight 8 steel discs have been installed Finish with a steel brake disc on top NOTE It is a good practice to pre lubricate the discs in hydraulic oil prior to assembly 4 Insta...

Page 24: ...porarily hold the pressure plate and springs in place while you lower the brake cylinder over the motor support 9 Apply petroleum jelly to the entire sealing surface of the brake cylinder and to the p...

Page 25: ...ve 5 minutes the brake cylinder should be disas sembled for inspection of the sealing surfaces and brake piston 2 WHILE PRESSURE IS APPLIED AND THE BRAKE RE LEASED install the brake clutch assembly in...

Page 26: ...race or remaining sprag bushing is damaged or shows excessive wear there is no need for further disassembly If disassembly is nec essary remove the bushing according to the procedure covered in Step N...

Page 27: ...n the free wheeling di rection to start it through the sprag clutch If the inner race will not go through the bushings the bushings have probably been damaged and should be replaced 6 Turn the assembl...

Page 28: ...sher to hold them in position Position the drum in the base and install the bearing support Refer to step 3 for two caution statements You may have to rotate the bearing support or planet gears to eng...

Page 29: ...ing with petroleum jelly or gear oil and install the drum closure into the drum 4 Tighten the bearing support capscrews to the recom mended torque 5 Stand hoist on bearing support end Install the outp...

Page 30: ...ch Service for additional information 13 If the brake discs are misaligned preventing the instal lation of the clutch then with a hand pump apply 750 1000 psi to the brake release port The brake discs...

Page 31: ...net carrier Note that the Primary Sun Gear and the entire Brake Clutch Assembly have moved to the right toward the hydraulic motor 16 Engage the motor shaft with the brake clutch inner race and lower...

Page 32: ...e BR port using a 5 32 in Allen wrench 2 Remove the elbow fitting motor drain check ball and spring 3 Remove the spool spring retainer and spool spring Check spring free length Replace spring if less...

Page 33: ...pen ASSEMBLY 1 Install new O rings on the plug and spring retainers 2 Install new O rings and backup rings on the spool and damper piston as shown It is important that each backup ring is on the corre...

Page 34: ...ng Port DRN DRN BR BR Hoisting Port Lowering Port Motor Brake Valve M M Manifold Block 1 Remove the four capscrews securing the brake valve to the motor Remove the four capscrews securing the manifold...

Page 35: ...On two speed motors the case drain and shift drain should be connected directly to tank DO NOT use the drain connection on the brake valve See TWO SPEED MOTOR CASE DRAIN PLUMBING for additional infor...

Page 36: ...port 3 Install the motor onto the hoist 4 Install capscrews and lockwashers items 101 102 securing the motor to motor adapter 5 Install flatwasher item 121 and O ring item 122 onto new sensor item 12...

Page 37: ...37...

Page 38: ...38 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 39: ...hes Hg 60 o 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 cm 2 kilograms sq cm kg cm2 X 14 22 pounds sq in PSI pounds...

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Paccar Braden PD12C, Installation Maintenance And Service Manual

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