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REASSEMBLY OF CLUTCH ASSEMBLY:
Reassemble clutch assembly as follows:
1) Install drive gear, item 660, onto connecting shaft, item 600, and fasten with circlip, item 661.
2) Install new, well-greased O-ring, item 735, into motor drive shaft, item 730.
3) Install new, well-greased O-ring, item 657, into gland, item 656, and install gland onto motor drive shaft.
4) Install new, well-greased O-ring, item 653, into pressure plate, item 652, and install pressure plate onto motor
drive shaft and gland.
5) Install three clutch springs, item 676, into holes in clutch piston, item 670, and install clutch piston onto motor
drive shaft, item 730. While holding clutch springs compressed, install circlip, item 679, which fastens clutch
hub onto motor drive shaft.
6) Starting and finishing with a friction plate, alternately install eight friction plates, item 673, and seven divider
plates, item 675, onto clutch hub, item 670. Install external retaining ring, item 658, into clutch hub. Install
clutch plate, item 654, and fasten with circlip, item 671.
TESTING PROCEDURE: Before clutch assembly is installed into winch, it should be tested for proper
operation. Apply pressure to motor drive shaft and verify friction and divider
plates close tight. Release pressure and verify that plates are loose and run free.
7) Verify circlip, item 727, is on motor drive shaft. Insert end of motor drive shaft into sprag clutch aligner, item
677. Twist motor drive shaft to allow each divider plate to engage with drive gear, item 660.
IMPORTANT: For proper drive function, verify that sprag clutch, item 672, is installed correctly. When
viewed from motor end, motor drive shaft of a clockwise hoisting winch must turn freely
clockwise and lock in counterclockwise direction.
RE-INSTALLATION OF HYDRAULIC PISTON MOTOR:
For models with hydraulic piston motors, proceed as follows:
1) Install two new, well-greased O-rings, item 689, into exposed grooves of motor drive shaft, item 730. Verify
pipe plug, item 663, is installed tightly into end of motor drive shaft.
2) If removed, press ball bearing, item 665, into bearing carrier, item 664.
3) Install clutch connector, item 668, into ball bearing, item 665. Tap tight with a soft-headed hammer if
necessary.
4) Install two seal rings, item 666, onto clutch connector. Notched sides must face each other. Install new, well-
greased O-ring, item 667, into bearing carrier, item 664, and install assembly onto motor adaptor, item 800.
Fasten with six socket head capscrews, item 687, and lockwashers, item 685.
5) Liberally grease three new O-rings, item 801, and install into recesses on motor adaptor, item 800. Install
new, well-greased O-ring, item 707, onto flange of motor adaptor.
6) Install motor adaptor assembly onto clutch housing, item 650. Engage clutch connector, item 666, with clutch
hub, item 670, and fasten with nine hex head capscrews, item 931, and lockwashers, item 541.
7) Install new, well-greased O-ring, item 819, onto hydraulic piston motor, item 850, and install motor into motor
adaptor, item 800. Fasten with four hex head capscrews, item 815, and lockwashers, item 817.
8) Install brake tube assembly, item 852.
313 REV.970901
SERVICE INSTRUCTIONS CONTINUED
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