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D D i i s s a a s s s s e e m m b b l l y y a a n n d d A A s s s s e e m m b b l l y y
Head Section
FILLER 34028 (3)
* CONTROL ROD 34021
VALVE CAP (2) 34026
"O" RING (2) Y325-116
Disassembly
1. Remove head from housing as outlined in
2. Remove lock screw (34024), gear (34030) and shaft (34025).
3. Remove valve caps (34026), "O" rings (Y325-116) and springs (38966).
4. Valves (33703) and (46079) with "O" rings (04662045) and valve body (37704) may now be removed from either
end of head housing.
5. Swivel assembly may be disassembled while mounted to head or removed from head. To disassemble, remove
retaining ring (Y145-28), pull off swivel (46839) exposing "O" rings (Y325-115) and swivel body (33314).
6. To remove oilite casting (33190), remove oil screw (30747) and washer (31389) on side of head. Insert
screwdriver into opening and remove oilite costing.
7. Muffler fillers (34028) and screen (33672) are exposed after removal of head from housing and may be removed.
8. To remove regulator valve (41595), remove set screws (41598) and pull valves from housing.
Assembly
1. Assemble screen (33672) and fillers (34028) to head. Assuming other hoist components are assembled to
housing, assemble head to housing with gasket (41623). Secure with washers (Y14-10) and screws (Y154-54).
2. Assemble "O" rings (Y325-17) and (Y325-115) and screen (46072) to swivel body and assemble to head.
Assemble swivel to swivel body and secure with retaining ring (Y145-28). Assemble screen (31648) and adapter
(46211) to swivel.
3. Assemble oilite casting (33190), screw (30747) with washer (31389) and regulator valves (41595) with "O" rings
(Y325-11) to head.
Note: Assemble valves to head with slot in valve positioned to accept set screw. Secure valves with set screws
(41598). After complete assembly of hoist, loosen set screw and adjust valve for desired rate of lift and
descent. Refer to
4. With gear (34022) and control rod assembled to housing, assemble valve parts, see
18
Figure 12. 46073–1 Head Assembly (MHP3433)
RETAINING RING Y145-28
SWIVEL 46839
"O" RING (2) Y325-115
SWIVEL BODY 33314
INCLUDES PIPE
PLUG (3) Y227-3
(NOT SHOWN)
46071 HEAD
OIL SCREW (2) 30747
WASHER (2) 31389
SCREEN 33672
* "O" RING Y325-9
OLITE CASTING 33190
SET SCREW (2) 41598
"O" RING (2) 04662045
SPRING (2) 38966
LIFT VALVE 46079
"Removal of Hoist," p.
"Air and Lube Requirements," p.
ADAPTER 46211
SCREEN 31648
"O" RING Y325-17
SCREEN 46072
LOCK WASHER (6) Y14-10 *
CAP SCREW (6) Y154-54 *
VALVE BODY 37704
GEAR 34030
"O" RING Y325-19
SHAFT 34025
ROLL PIN Y178-56
GEAR 34022
VALVE BODY (2) 41595
"O" RING (2) Y325-11
15.
8.
VALVE 37703
LOCK SCREW 34024
* NOT INCLUDED IN HEAD ASS'Y
NOT USED WITH PENDANT
CONTROL MODELS
INCLUDED IN SWIVEL KIT 46840
Figure 10, p.
16.
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