REV. 09/2020
REV. 09/2020
MAST
MAST
8
8
90
91
8.3 Three-stage Full Free Mast
8.3.1 Removal and Installation
Removal (Fig3132-60003SM)
-
-
-
Disconnect the connections between lifting -
lowering tubing, left shifting tubing and right
shifting tubing and mast tubing;
Wrap the sling (1) around the upper beam of
inner and outer masts, slightly lift the mast
with crane;
Remove the shafts (2) between the outer
mast and tilt cylinders (A and B);
Installation
-
Install according to the reverse order of rem-
oval.
-
-
Unscrew the bolts (3) and remove the fixed
plate (4) between the outer mast and chassis
(C and D);
Remove the mast from the truck.
Make sure the lifting equipment is solid and
secure, and the load capacity should be greater
than the total weight of the vehicle.
WARNING
8.3.2 Lifting Chains
-
-
Lower the mast to the bottom;
Press the emergency stop switch and discon-
nect the key switch;
8.3.2.1 Chain Adjustment
Switch off the power supply before any adjust-
ments or operations!
When the adjustment is completed, there sh-
ould be an adjustable distance of at least three
pitches over the chain bolts.
CAUTION
CAUTION
-
-
Pull out emergency stop switch and turn on
the key switch;
Through repeatedly lifting/lowering the mast
to test if the chain is tensioned. If the chain is
still loose, repeat the steps above.
-
-
-
Loosen the upper lock nut (1,Fig3131-60011SM)
and the lower lock nut (3) on chain bolt;
Through screwing upward the adjusting nut
(2) in the middle, the chain will slowly tension;
When the chain is adjusted to be tensioned
with no obvious loosening, fasten the upper
and lower lock nuts;
