16
Knowhow is the difference
Calibrating the dolly.
If the unit is to be calibrated, the load must be 1,600 kg. The lifting capacity must be set on point *A1.
(See Fig. 5) using a screwdriver.
Setting: With a load of 1,600 kg in the unlifted position, turn *A1 two rotations backwards (or out of thread)
and then try to lift the 1,600 kg load. If it is possible to lift the load, lower it again and screw one rotation
outwards and repeat the attempt until the dolly can NOT lift the load.
When you reach this point, screw *A1 one rotation forward (into the thread), and the capacity is then set to
be between 1,600 and 1,650 kg!
Adjusting the lowering valve.
If it is not possible to calibrate the lifting capacity, try to turn the mandrel (B) (See Fig. 5) one full rotation
clockwise, to adjust the lowering valve.
You may have to repeat this step several times. (Note: Max. three rotations.)
Inspecting the frame and lifting arm under pressure
While the dolly is fully loaded
–
please check carefully for errors
–
as described in 3 A-F.
In case of error, make the necessary adjustments/repairs. Do this before moving to the last part of
inspection.
Stop test.
The stop test is performed to check the change-over valve (E) (See Fig. 1).
Place the wheel dolly in a testing device (S
ee item 2 “Test equipment”).
Lift the wheel until it is at least 10 cm above the floor by following the
instructions in the section (“Safe operation –
Lifting for w
heel dismount” in this
manual).
Lower the wheel, stopping periodically, to check the change-
over valve’s
closing mechanism. See the sections “Safe operation –
Stopping the lowering
movement” and “Safe operation –
Lowering for wheel mounting”.
If lowering of the wheel does not stop immediately when you set the change-over valve to lifting position 2b,
the change-over valve (E) must be replaced.
The test is now complete, and the wheel dolly is calibrated.
When the test is complete and the dolly is ready for use
Fill in the Service Log in the operating manual with the following: service date, name / stamp of service
technician, and date of next service.
Next, complete the Certified Periodic Maintenance form, and stick it on the wheel dolly, making the
authorisation visible for the user.
Setting the dolly to a capacity greater than the max. capacity
(1,600 kg) can result in injury and property damage, as the
dolly is only built for a max. capacity of 1,600 kg.
B
*A1
Fig. 5
DANGER
2b
2a
E
