Hoist Assembly - BRADEN PD12C Series Installation Maintenance And Service Manual

HOIST ASSEMBLY

NOTE: PD15B HOISTS ONLY
The drum closure will not fi t through the opening in the base. For hoists with a three piece base, fi rst assemble the
bearing support 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) after 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 bearing 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
after motor is installed.
CAUTION
!
Hoists with a three piece fabricated base use spe-
cial shoulder capscrews to fasten side plates to the
base plate. DO NOT use standard capscrews in their
place.
PD12C, PD15B, PD17A
1. Place hoist base on side with bearing support end
up.
2. Install a new bearing in the drum if replacement is
necessary. Apply a non-hardening sealant on the
outside diameter 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.
!
Make certain the snap ring is installed on the bearing
support. This 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. Lubri-
cate the bearing support with petroleum jelly or gear
oil and install in base and drum.
28
CAUTION
!
!