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SERVICE INSTRUCTIONS CONTINUED
13) Attach tie bars item 556, using 20 capscrews item 555, and lockwashers item 553. Stand winch horizontally on feet.
REASSEMBLY OF FREE FALL METERING PUMP:
If metering pump was disassembled, the following procedure should be followed for reassembly:
1) Clean all parts thoroughly before reassembly and apply grease to all seals. Use only new seals (seal kit part
No. 23031) for metering pump.
2) Install new, well-greased rubber channel seal item 225, into thrust block item 235, so that protrusions in seal
match recesses in block. Install new backup seal item 184, over top of channel seal, leaving flat side of backup
seal flush with surface of thrust block. Insert thrust block item 235, into gear housing, making sure seals are
facing away from gear set.
3) Install new, well-greased section seal item 205, on gear housing item 242. Install gear housing together with
seal section, onto metering pump adaptor item 246, lined up on two dowel pins. Tap on tights using soft-
headed hammer.
4) Install gear set item 224, in gear housing. (External spline end of gear goes into bore of motor adaptor.)
5) Insert other thrust block, complete with backup and channel seals, making sure seals are facing away from
gear set. Install new, well-greased seal section item 205, on gear housing.
6) Install port end cover item 180, onto gear housing and fasten with four hex capscrews item 197, and
lockwashers item 199.
REPLACE METERING PUMP:
Install metering pump onto winch as follows:
1) Insert metering pump shaft item 190, into free fall end cover and engage external spline with that of metering
pump connector item 248.
2) Install new, well-greased O-ring item 241, onto metering pump adaptor. Verify stopper item 140, is installed
on metering pump adaptor. Insert metering pump into free fall housing opening, engaging spline of metering
pump shaft.
3) Fasten with four socket head capscrews item 209, and lockwashers item 211.
REASSEMBLY OF BRAKE HOUSING ASSEMBLY:
Reassemble brake housing assembly as follows:
1) Install sprag clutch item 723, into bore of brake hub item 720. Position sprag clutch aligners item 722 and
item 724, on either side of brake hub. Carefully slide motor drive shaft item 730, into brake hub assembly and
secure with circlip item 719. Verify that circlips item 727 and item 731, are installed on motor drive shaft.
2) Carefully slide motor drive shaft item 730, with brake hub assembly, into connecting shaft until it engages
spline of primary sungear item 440.
IMPORTANT: For proper brake function, verify that the sprag clutch is installed correctly. When viewed from
the motor end, the motor drive shaft of a clockwise hoisting winch must turn freely clockwise
and lock in the counterclockwise direction.
3) Install brake spacer item 712, into brake housing.
INCORRECT ASSEMBLY OF THE FRICTION PLATE AND DIVIDER PLATE STACK WILL
REDUCE BRAKING CAPACITY AND ALLOW THE LOAD TO DROP, CAUSING PROPERTY
DAMAGE, SEVERE INJURY OR DEATH. REASSEMBLE PER INSTRUCTIONS.
DANGER
4) Starting and finishing with divider plate, alternately install six divider plates item 713, and five friction plates
item 715.
f5) Liberally grease O-ring item 751, and O-ring item 753, and install on brake piston item 750.
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