1. Insert the roller bearing(s) into the planet gear - one
(1) bearing in each of the primary planet gears; two
(2) bearings in each output planet gear. Place a
thrust washer on each side of the gear and slide the
gear onto the carrier opening. Align the bore with the
bore in the carrier and carefully slide a gear shaft
through the carrier bore, thrust washers and gear.
NOTE:
Align the spirol pin hole in the gear shaft with
the hole in the carrier before inserting the shaft fully
into the carrier.
2. Using a small punch, align the holes in the shaft and
carrier and insert a NEW spirol pin the carrier.
NOTE:
ALWAYS use new spirol pins when a carrier
has been disassembled for any reason. Use of exist-
ing pins can lead to improper fit and the pin backing
out of position while in service.
3. Drive the spiral pin into place. The pin should be
installed so that approximately half of the length of
the pin is inserted into the gear shaft. Once in place,
using a center punch or small chisel, dent the carri-
er next to or across the hole. This will slightly deform
the carrier to keep the pin from backing out during
hoist operation.
4. Repeat the above steps for each remaining planet
gear.
NOTE:
Follow the above steps for the primary plan-
et carrier assembly also. However, the internal thrust
washer must be installed in the pocket inside the
carrier before the gears are installed.
DO NOT
attempt to force the gear shaft through the
bore by tapping with a hammer, or other means. It
should slide easily into position. Forcing it through
the bore can damage the gear shaft or thrust wash-
er, which can cause internal damage to the hoist if
left alone or unnoticed.
CAUTION
39
PLANET CARRIER ASSEMBLY
