JET 211500 Use and Care Manual download pdf (Page 10)

Inspecting Hoist Motion

1. Before closing the circuit breaker and testing

the hoist, check that wiring has been complete.

If the hoist cannot be observed when the

circuit breaker is closed, station an observer

within sight of the hoist to report any

movement when power is applied to the hoist.

Be prepared to disconnect power if hoist motor

starts when the power is applied. The hoist

must remain motionless when power is

applied. Find and correct any problems before

continuing.

2. With no load on the load hook, press the UP

button very briefly and observe hoist action.

The hook should move upward.

3. If no motion occurs when the UP button is

pressed and the hoist is connected to a three

phase power supply, the power supply wires

are incorrectly positioned. Switch any two of

the three supply wires at the power source. Do

not attempt to rewire the hoist circuit or

pendant controls for this problem. Use the

same safety precautions when reversing two

of the supply wires as was used when the

wires were originally connected.

4. Re-connect power and test hoist movement

again without load. Run hoist to the complete

lifting height to ensure limit switches are

operating properly.

Extension Cords

If an extension cord is necessary, make sure the

cord rating is suitable for the amperage listed on

the hoist's motor plate. An undersized cord will

cause a drop in line voltage resulting in loss of

power and overheating.

The chart in Figure 6 shows the correct size cord to

use based on cord length and motor plate amp

rating. If in doubt, use the next heavier gauge. The

smaller the gauge number, the heavier the cord.

Recommended Gauges (AWG) of Extension Cords

Amps

Extension Cord Length *

feet

100

feet

150

feet

200

feet

< 5 16 16 16 14 12 12

5 to 8 16 16 14 12 10 NR

8 to 12 14 14 12 10 NR NR

12 to 15 12 12 10 10 NR NR

15 to 20 10 10 10 NR NR NR

21 to 30 10 NR NR NR NR NR

*based on limiting the line voltage drop to 5V at 150% of the

rated amperes.

NR: Not Recommended.

Figure 6

Installing Chain Container

Your hoist is supplied with a canvas chain

container (Figure 7) designed to fit the particular

length of chain. If a different length chain is ever

installed on this hoist, the chain container must be

replaced by one of proper size. See chart on page

19.

Do not overfill chain container.

If chain should overfill and begin to fall, the

entire chain container may empty without

warning, resulting in serious personal injury or

property damage.

To assemble the chain container to the hoist:

1. Hang hoist in position on the I-Beam or trolley.

Do not install chain container yet. Allow slack

side and load side of chain to hang freely from

hoist.

2. Apply power to the hoist and press the DOWN

button until the lower limit switch is tripped.

3. Check the chain container to ensure that the

seam is inside the bag. The bag must not be

inside out.

4. Insert bracket prongs into interior bag slots

(Figure 7) as far as they will go.

Figure 7

5. Push the bracket down into the bag, making

sure the flaps are raised (Figure 8).

6. Push the flaps over and down until they are

secure (Figure 9).

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JET 211500 Use and Care Manual Page 10

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