Ramsey Winch RPH-12000 - Manual (Page 12)

10
Generously apply grease (MOBILITH SHC 007) to teeth of ring gear (item #28), teeth of planet gears in
drum (item #1) and to bushing in gear housing end bearing (item #5). Apply a small amount of grease to
base of bushing on motor end bearing (item #4). Apply grease to teeth of gear and short end of shaft
(item #8). Place gear end of shaft through thrust washer (item #47) and into bearing in end bearing (item
#5). Place drum over shaft and rotate drum to engage planet gears with output gear on shaft and with
ring gear in end bearing.
Assemble end bearing (item #4) to drum assembly and use tie plates (item #9) and capscrews (item #16)
to hold both end bearings together. Tighten capscrews to 55 Ft. Lbs. (75 Nm.). Slide thrust washer (item
#48) over end of shaft and against end bearing (item #4). Place snap ring (item #41) into groove in
splined end of shaft.
If necessary, remove and replace appropriate shifter assembly (item #2 or #3), as follows:
MANUAL CLUTCH SHIFTER ASSEMBLY
Remove by loosening setscrew (item #18), jam nut and unscrewing clutch shifter. Be sure slot in ring
gear is not aligned with clutch shifter hole. Rotate drum, if necessary, to insure hole and slot are not
aligned. Reinstall clutch shifter with plunger, jam nut and handle positioned in cylinder housing, as
shown. Thread assembly (with handle engaged in cylinder slot) into the end bearing. Pull drum toward
the brake housing end bearing to remove play. Hold drum in the position and continue threading the
shifter assembly in until the gap between the end of the handle and cylinder is 7/16 +0 -1/16 inch and
handle is in the horizontal position, as shown below. NOTE: This gap will vary with drum endplay. With
the drum pulled against the gear housing, the gap should be 3/8 inch. Lightly tighten jam nut. Rotate
drum until handle snaps fully into the engaged position. Pull handle out and rotate 90o. Verify that drum
can be rotated freely (at least one full revolution) with clutch shifter at DISENGAGED position. Securely
tighten jam nut while holding the handle. Tighten setscrew securely. Re-check clutch operation as
described on page 5.
AIR CYLINDER SHIFTER ASSEMBLY
Remove by loosening setscrew (item #18), jam nut and unscrewing clutch shifter. To reinstall, thread air
cylinder into housing. Install one or two shims (item #45) under cylinder head, if needed, to orient air
cylinder port for pneumatic connections. Tighten setscrew. Refer to page 5 and check for proper
operation of the clutch.
BLOCKED CLUTCH
Insert plunger into gear housing bore so it engages into ring gear slot. Pull drum flange toward gear
housing and thread setscrew into housing until it bottoms out and drum starts to move. Back setscrew
out 1/2 turn and lock in place with jam nut.