Product Manual

13
Figure 9
3. Press UP button and remove all slack in load
chain. Increase tension in load chain until hoist
is about to raise the load.
4. Check again that load is properly slung, is
directly under hoist, and will not suddenly
swing or twist.
5. Raise load an inch or two above ground and
stop. Observe load for a few moments, looking
for signs that load or hoist system is unstable,
or other indications of a problem.
6. Check that chain is not twisted at bottom hook.
All welds should face same direction (see
Figure 13). For hoists with two or more falls of
chain, make sure bottom hook is not capsized.
This may cause the chain to twist.
7. Raise load to traveling height. Raise only to
height necessary to safely clear all obstacles.
8. Lower load at destination. If both UP and
DOWN commands must be used during
lowering, pause for a moment between each
reversal of load direction. Use the variable
speed dial for gradual speed changes when
needed.
9. Slowly allow weight to shift from hoist to
ground or new support. Do not approach load
until all tension is out of chain and load is
stable.
13.2 Thermal overload protection
If the hoist has stopped working due to overloading
and tripping of the thermal relay, there are two
methods of resetting the hoist:
1. Lower hoist to operator’s level, open cover on
the inverter end, and push reset button (Figure
10). OR…
2. Shut off power supply to hoist. This will reset
the hoist without having to lower it.
Analyze the possible reason for overloading and
correct it. Make sure load is within rated capacity.
Figure 20
13.3 Magnetic brake function
The magnetic disc brake provides dependable and
rapid stops, and produces less wear on parts than
standard mechanical braking systems. It also
provides an important safety measure – a power
failure will result in immediate engagement of the
brake. (See section 18.0 for maintenance and
adjustments.)
13.4 Optional pendant controls
The 2-button pendant controls (shown in Table 4)
are replacement parts for the pendant supplied
with the hoist.
The 4-button controls are for use with an optional
JET electric trolley. They possess buttons for both
vertical lift and lateral travel, thus allowing one
pendant control to be used for both hoist and
trolley.
See your dealer or call JET to order.
Stock
no.
Model
no. Description
162210 PBC-210VOLT VOLT 2 BTN PNDT 10' Lift
162215 PBC-215VOLT VOLT 2 BTN PNDT 15' Lift
162220 PBC-220VOLT VOLT 2 BTN PNDT 20' Lift
162230 PBC-230VOLT VOLT 2 BTN PNDT 30' Lift
162410 PBC-410VOLT VOLT 4 BTN PNDT 10' Lift
162415 PBC-415VOLT VOLT 4 BTN PNDT 15' Lift
162420 PBC-420VOLT VOLT 4 BTN PNDT 20' Lift
162430 PBC-430VOLT VOLT 4 BTN PNDT 30' Lift
Table 4