Ramsey Winch AIR SHIFTER FOR NRC H-800 256093 - Manual

912577 REV. A
JANUARY 13, 1997
INSTALLATION INSTRUCTIONS FOR KIT #256093
AIR SHIFTER FOR H-800 WINCHES
1. Remove winch from mounting frame by removing (8) mounting bolts and lockwashers. Remove shifter
yoke mounting screws and pull clutch housing from end of winch assembly.
2. Remove remote shifter shaft from shifter yoke by driving roll pin from shifter yoke. Install 358069
shifter shaft, as shown, to shifter yoke by driving roll pin into yoke and shifter shaft. Apply grease to
the end of the drum shaft. Set the shifter so that the screw heads in yoke engage the external groove
in the locking ring. Push the clutch housing onto the drum shaft with the shifter handle sticking out
through the slot in the top of the clutch housing. Attach the shifter yoke to the clutch housing using (2)
shifter yoke mounting screws.
3. Place winch assembly back into mounting frame and reattach using (8) mounting bolts and
lockwashers. Torque mounting hardware to 290 ft. lbs. each. Make sure that gear housing and clutch
housing are not rubbing against drum flanges.
4. Place 299710 air shifter assembly over shifter shaft aligning clevis over flats of shaft. Secure clevis to
shaft using 424029 clevis pin and 424005 cotter pin. Place shifter shaft in the "ENGAGED" position.
With the air cylinder shaft fully retracted, push shifter assembly toward the drum until all play is taken
out of the shifter shaft. Secure shifter assembly to clutch housing using (4) 414126 capscrews
(flanged hx. hd. serrated). Tighten securely, but do not torque.
5. Hook up air (70 to 90 psi) to inlet port of air cylinder and disengage clutch. Look into the opening in
the clutch housing and verify that the locking ring and retainer plate are not making contact. Locking
ring and retainer plate must not make contact. There must be a clearance (gap) of .09 inch (max.)
between the locking ring and retainer plate when the winch is fully disengaged. If there is contact, the
(4) 414126 capscrews should be loosened and the plate pulled away from the drum approximately .06
inch. Tighten screws securely and check action to assure needed clearance. Repeat adjustment
procedure as needed to acquire needed gap. Shift clutch 2 or 3 times to verify proper shifting of
clutch. After final adjustment, torque (4) 414126 capscrews to 18 ft. lbs. each.