CWL-20E
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23
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en
Maintenance and Inspection
12.5
Lift table adjustment
The lift system has a 1/2-13 hex head cap screw mounted
inside the top weldment to allow the lift table to be raised
or lowered slightly. The cap screw has been adjusted at
the factory to provide 1/4" to 5/16" of clearance between
the bottom of the lift pads and the floor.
To raise or lower the lift table, follow the lift table
adjustment steps below:
1.
Place the lifts on a level floor in a suitable open area.
2.
Raise both lifts onto their lowest downstop.
3.
Loosen the jam nut and turn the cap screw a few
turns in the required direction. Clockwise raises the lift
table, counterclockwise lowers it. (See Fig. 13 for
identification.)
Fig. 16: Lift table clearance adjustment
4.
Tighten the jam nut.
5.
Lower the lift to its lowest position and check the lift
table height above the floor.
Repeat the adjustment as needed until each lift has a
minimum of 1/8" clearance between the lift table bottom
and the floor. With the lift table resting on the floor, the
lifts may not easily move around the shop floor.
12.6
Sensor adjustment
If the pin sensors or down stop sensor get out of
adjustment, they will need to be readjusted (see Figure
7). The sensors can be adjusted by removing the tape
and using a .050” hex key to loosen the set screw in the
sensor. A hex key may be included inside the control
box. Use the red LED on the sensor to aid in the
adjustment of the sensor. When adjusting the down stop
sensor, the down stop needs to be engaged with the
base post and not with a down stop lug. When adjusting
the pin inserted sensor, the pin needs to be fully inserted
into a pin hole. When adjusting the pin retracted sensor,
the pin needs to be fully retracted. The sensor should be
left at the center of the range that the LED is lit. The set
screw on the sensors should be tightened to a maximum
of 1.5 in-lbs.
Fig. 17: Sensor adjustment
1
Pin hole
2
Pin retracted sensor
3
Down stop sensor
4
Pin inserted sensor
5
Base post
6
Down stop lug
12.7
Electronic components
The electrical system is powered by a 12 VDC battery
with a 5 Ah rating. This electrical system does not need
any routine maintenance, but does have a 3 Amp blade
fuse located on the circuit board inside the Electronics
Enclosure.
Always disconnect the battery from the system before
changing fuses. Failure to heed this warning may
result in personal injury and/or property damage.
Always replace a blown fuse with the same size and
type. An improper replacement could damage the
equipment.
Capscrew
Jam Nut
Lift Table
