Harrington-hoists-and-cranes CB Hand Chain Hoist User Manual download pdf (Page 27)

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

Snap ring pliers

Opening a snap ring

Metric socket wrenches

Slotted nuts

Metric hex keys (Allen wrenches)

Socket head cap screws

Metric wrenches

Bolts and nuts

Phillips screwdriver

Machine screws

Pliers (Needle Nose)

Split pins

Soft-face (Dead blow) hammer

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].

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Harrington-hoists-and-cranes CB Hand Chain Hoist User Manual Page 27

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