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4. Operation
4.1. Introduction
Operating a heavy load may result in hazardous situations. Before operating, read and comply with all of the information in
this clause and “1.2 Prohibited Practices.”
4.2. Free Chaining
Do not operate the hoist in free chaining mode under a load.
When the hoist holds a load, ensure to set the select lever to the lifting (‘UP’) position, and to avoid operating the
chain knob.
Do not pull the no-load-side chain with the select lever set to the lowering (‘DN’) position, which will cause the
lever to revolve and can be hazardous.
4.2.1. Features
- Free chaining can freely feed the load chain as the brake is released under no load situations.
- With the select lever set to the neutral position and the no-load-side chain pulled lightly, turning the chain knob
counterclockwise releases the mechanical brake to pull the load chain in either direction to its needed length.
4.2.2. How to Operate
1. Move the select lever to the neutral (‘N’) position as shown in the left picture.
2. With the no-load-side chain pulled lightly, turn the chain knob counterclockwise.
3. In this mode, the load chain can be pulled through the hoist to its required length. If the
hoist does not shift into free chaining mode, hold the no-load-side chain and make some
lowering operations to release the brake.
When a load under 7 kg is applied to the load chain, the brake does not operate.
Do not apply any load to the load chain in free chaining made, except for the positional
adjustment of the load chain by an operator.
Do not pull the load chain suddenly in free chaininPg mode.
- Excessive pulling may make a brake and can not feed the chain.
- In this case, set the select lever to the lowering (‘DN’) position, make some lowering operations, and then start
over.
Free chaining with the chain knob on the top as shown in Figure 4.1 may cause a braking force. In this case, direct
the top of the knob towards the horizontal side as shown in Figure 4.2 in free-chaining.
Figure 4.1 Figure 4.2
4. To reset the hoist for load operation, with the load-side chain pulled lightly, turn the chain knob clockwise or make
lifting operation to eliminate the clearance to the friction plate and operate by using the lever.
4.3. Load Operation
4.3.1. How to Operate
・ Do not operate the chain knob in lifting or lowering.
・ Before operating, make sure that the hoist is out of the free chaining mode and the select lever position
meets your operation demands.
The following table shows select lever position and lever operation for lifting and lowering.
Table 4-1 Hoist & Lever Operation
Hoist Operation Select Lever Lever Operation
Lifting UP Clockwise
Lowering DN Counterclockwise
・
Under no load or light load (region of 3kg) conditions, in the case that the load chain does not move against your
operation, operate the lever with the load-side chain pulled lightly. (Standard manner.)
DANGER
CAUTION
CAUTION
CAUTION
DANGER
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