24
1. Install a new bearing in the drum if replacement is
necessary. Apply non-hardening sealant to the out-
side diameter of the new seal and press the seal
into the drum using a flat steel plat to prevent dam-
age to the seal. Install the seal with the spring side
of the seal next to the bearing. Be sure the drain
plug is installed securely.
2. Place the drum bearing support/end-bracket on the
workbench with the splined torque shaft facing up.
Lubricate the drum bearing support seal and bear-
ing surfaces with light grease or gear oil. Install the
drum onto the bearing support being careful to
avoid damaging the seal.
3 Install the output sun gear into the output planet car-
rier. Install the output planet carrier thrust washer
into the shallow counter-bore in the output planet
carrier. Install the output planet carrier into the drum.
You must engage the planet gear teeth with the ring
gear teeth and the planet carrier splines with the
torque shaft splines.
4. Install the primary sun gear and thrust washer into
the primary planet carrier. Install the primary planet
carrier into the drum. You must engage the planet
gear teeth with the ring gear teeth and the planet
carrier splines with the output sun gear.
5. Install a new bearing in the drum closure as
required. Apply non-hardening sealant to the out-
side diameter of the oil seal and press it into the
drum closure using a flat steel plate to avoid distor-
tion. Install the seal with the spring side toward the
bearing. Install a new o-ring in the groove on the
outside diameter of the closure.
6. Lubricate the o-ring and drum opening with light
grease or gear oil and install the drum closure with
the seal side facing away from the gear train.
7. Place the motor end-bracket onto the drum and
install the two tie plates that connect the drum bear-
ing support end-bracket to the motor end-bracket.
Start all capscrews and tighten just hand tight at this
time.
8. Lubricate the pilot diameter, bearing and sealing
surfaces of the brake cylinder and carefully install
the brake cylinder into the drum closure and end-
bracket. Install the eight capscrews that secure the
brake cylinder to the end-bracket and tighten them
only hand tight at this time.
9. Evenly tighten the 16 tie plate capscrews to 110 lb.-
ft. (149 N-m) torque. Evenly tighten the eight brake
cylinder capscrews to 110 lb.-ft. (149 N-m) torque.
10. Install the brake clutch assembly into the brake
cylinder with the short end of the inner race toward
the hydraulic motor. If the brake clutch outer race
does not align with the brake discs or the inner race
will not align with the input sun gear, install a hand
pump to the brake release port and apply 1000 PSI
to release the brake. This will permit easy alignment
of the clutch, discs and sun gear. The snap ring
installed in the inner race of the brake clutch should
rest upon the input sun gear. This signifies that the
clutch has passed through all of the brake discs and
is centered in the brake pack.
When installed correctly, the inner race will turn
freely of the outer race in the direction the drum
turns to pull wire rope in. If the clutch freewheels in
the wrong direction, disassemble the clutch and
reverse the inner race. Refer to "Brake Clutch
Service" section of this manual for more informa-
tion.
WINCH ASSEMBLY
