Harrington Hoists and Cranes CB Hand Chain Hoist - Manual (Page 27)

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6.2 Disassembly, Assembly and Adjustment
6.2.1

1) Perform proper disassembly or assembly in accordance with this manual.
2) The hoist utilizes dry friction plates; they are not to be lubricated.
3) Do not extend the load chain.
4) Remove old grease on the disassembled parts.
5) Replace components with Harrington Hoist approved parts.
6) To reassemble, apply new grease, and use a new split pin and snap ring.
6.2.2 Tools – The following tools are required to disassemble/reassemble the hoist.
Table 6-2 Tools Required for Hoist Disassembly
No. Tool Operation
1 Snap ring pliers Opening a snap ring
2 Metric socket wrenches Slotted nuts
3 Metric hex keys (Allen wrenches) Socket head cap screws
4 Metric wrenches Bolts and nuts
5 Phillips screwdriver Machine screws
6 Pliers (Needle Nose) Split pins
7 Soft-face (Dead blow) hammer
8 Wooden Blocks Elevate hoist
6.3 Hoist Disassembly
Proceed as follows (Note: Figures in brackets are Figure Numbers in Parts List):
1) Orient a hoist with wheel cover side up.
2) Unscrew three nuts [45] (with the spring washers [46]) fixing the wheel cover [44] and remove the
wheel cover from the side plate A [11].
3) Remove the hand chain [48] from the hand wheel [40].
4) Pull out the split pin [43] from the wheel stopper pin [42] and remove the wheel stopper pin and the
wheel stopper [41] from the pinion [17].
*NOTE: If the hoist has an over load limiter, instead of step 4, remove the left hand threaded nut from
the pinion.
5) Remove the hand wheel [40] from the pinion [17] by turning the hand wheel counterclockwise.
*NOTE: If the hand wheel is too tight to turn by hand, put the hand chain back on the hand wheel and
pull it down hard. It will release the brake.
6) Remove two friction plates [37], the ratchet disc [38] and the bushing [39] from the friction disc [36].
7) Unscrew the friction disc [36] from the pinion [17] by turning counterclockwise holding the end of
the pinion with your fingers.
8) Remove the snap ring [35] from the pawl pin (on the side plate A) and then remove the pawl [34]
and pawl spring A [33] and B [33].