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Make sure chain is not twisted and that welded side of links face away from sheave - see
Installing Load Chain (MHP3428), p. 13
5. Assemble other half of shroud and secure shroud with screws, washers and nuts as shown, tightening securely.
1600# Roller Chain Models
CHAIN
STOP 37666
CAUTION: DO NOT ATTEMPT TO DISASSEMBLE LOWER BLOCK
WITH LOAD SUSPENDED FROM HOIST - LOWER LOAD AND REMOVE
EVERYTHING ATTACHED TO HOOK.
ASSEMBLE ROLL PIN WITH SPLIT SIDE EITHER UP OR DOWN.
*
SHEAVE AND BEARING ASSEMBLE 45706.
NOT INCLUDED IN LOWER BLOCK ASSEMBLY.
LOWER BLOCK
ASSEMBLY
45708 (STANDARD)
45710 (SPARK-RESISTANT
** INCLUDED WITH 45379 ( ) SHROUD
Disassembly
1. Remove screws (Y99-43) and two (2) screws (Y99-47), lock washers (Y14-416) and nuts (Y107-4-Z).
2. Pull shroud apart, releasing hook and components. Bearings (42406) are pressed on shaft of sprocket (45365).
3. To remove thrust bearing from hook shank, remove roll pin (Y178-122) and sleeve (45368).
Assembly
1. Lubricate thrust bearing liberally with ARO 33153 grease, or equivalent, and assemble to shank of hook.
Assemble sleeve (45368) to hook and secure with roll pin (Y178-122).
C C A A U U T T I I O O N N
and inset above.
Figure 20. MHP3441
ANCHOR BLOCK 44686
SCREW Y157-51
BEARING (2) 42406
SCREW Y99-43
THRUST BEARING 42089
WASHER (3) Y14-416
SCREW (2) Y99-47
HOOK
SHROUD
ASSEMBLY
45367
45379-2 (2)
45372
45379-1 (2)
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
SHEEVE 45364
SLEEVE 45368
CAPACITY LABEL**
39592-2 (1600#)
39592-1 (1000#)
CONNECTING LINK 33363
ROLLER CHAIN 34331-11
ROLLER CHAIN 34332-22 ASS'Y.
SEE PAGE 32 FOR SPARK-
RESISTANT LOAD CHAIN.
NUT (3) Y107-4-Z
SHROUD (2) 45363-1
CAUTION
DO NOT
TWIST
OR JAM
CHAIN
*
ROLL PIN Y178-122
THRUST RACE (2) 45373
SAFETY LATCH 35023
HOOK (SEE TABLE)
HOOK ASSEMBLY (SEE TABLE)
HOOK
45366 (STEEL)
45371 (BRONZE)
27
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