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INSTRUCTIONS FOR OVERHAUL RPH-12000 SERIES WINCH
Take note of mounting configurations for proper mounting of parts during re-assembly. Replace all gaskets, o-rings,
and seals during re-assembly.
Disconnect tube (item #44) from elbows (item #24) on bot-
tom of brake (item #6) and valve (item #45). Remove motor
(item #31) from brake housing (item #6) by unscrewing
capscrews (item #15). Tap motor lightly to disengage.
Replace all gaskets, o-rings and seals with new ones during
re-assembly.
Remove coupling (item #23) from brake housing. Examine
coupling for signs of wear, replace if necessary. If necessary,
remove valve (item #45) from motor by removing capscrews
(item #19) and lockwashers (item #49). If valve is removed
make sure two square cross section o-rings remain seated in
their counter bores in valve.
Remove brake housing (item #6) from end bearing (item #4)
by unscrewing (6) capscrews (item #14) in a criss-cross
pattern (2 turns each) until all capscrews are removed from
brake housing. Remove brake parts from brake housing.
Examine brake discs (item #26) for signs of wear, and
replace if necessary. Examine o-rings (items #34 & #35)
and backup rings (items #36 & #37) for signs of wear.
Remove o-rings and backup rings from grooves in brake pis-
ton (item #3).
Remove and examine springs (items #42 & #43) for dam-
age, replace if necessary.
Examine fitting (item #30) to assure that fittings are in proper
working condition, replace if necessary.
Remove tie plates (item #9) from end bearings (items #4 &
#5) by unscrewing capscrews (item #16), as shown.
Remove snap ring (item #41) and thrust washer (item #48)
from shaft. Slide motor end bearing (item #4) from drum
(item #1) and drum from gear housing end bearing (item
#5).
Remove input shaft (item #8) and thrust washer (item #47)
from end bearing. Inspect gear teeth and splined end of shaft
for signs of wear. If damaged, it will be necessary to replace
shaft.
15
31
15
22
24
49
18
SQUARE CROSS
SECTION O-RING
14
6
43
30
25
27
43
39
26
4
48
41
8
9
16
8
44
22
28
6
23
45
36
35
34
37
7
42
3
7
4
9
16
1
47
5
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