28
1. Place hoist base on side with bearing support end up.
2. Install a new bearing in the drum if replacement is neces-
sary. Apply a non-hardening sealant on the outside di-
ameter of the new seal. Install the spring side of the seal
next to the bearing, then press into the drum, using a
fl
at
plate to avoid distortion. Be sure drain plug is installed
securely.
NOTE: PD15B HOISTS ONLY
Th
e drum closure will not
fi
t through the opening in the base. For hoists with a three piece base,
fi
rst assemble the bearing sup-
port 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) a
ft
er installing the drum closure in step 10.
For hoists with a one piece cast base, use the following assembly procedure. With the drum horizontal, install the output planet
carrier assembly, output sun gear (34), thrust washer (43), primary planet carrier assembly, thrust washer (31) and drum closure.
(Apply a light coat of grease to the thrust washer 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 engage the
bearing support with the output planet carrier. Install and hand tighten the bearing support capscrews. Stand hoist on bear-
ing support end and visually check to verify the primary thrust plate is properly positioned. (Refer to caution and drawings in
step 16.) Install the primary sun gear and proceed to step 11 to complete hoist assembly. Tighten bearing support capscrews to
recommended torque a
ft
er motor is installed.
HOIST ASSEMBLY
Hoists with a three piece fabricated base use special shoul-
der capscrews to fasten side plates to the base plate. DO
NOT use standard capscrews in their place.
CAUTION
!
!
CAUTION
!
!
Make certain the snap ring is installed on the bearing sup-
port.
Th
is snap ring will keep the output planet carrier
correctly positioned in the hoist. Gear train damage may
occur if this snap ring is omitted.
3. Center the drum in the opening of the base. Lubricate
the bearing support with petroleum jelly or gear oil and
install in base and drum.
PD12C, PD15B, PD17A
