REV. 09/2020
REV. 09/2020
MAST
MAST
8
8
72
73
8.1 Wide-View Two-stage Mast
8.1.1 Removal and Installation
Removal (Fig3132-60001SM)
-
Switch off the power supply, block the truck
wheels with wooden wedges,
-
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;
Installation
-
Install according to the reverse order of rem-
oval.
Make sure the lifting equipment is solid and
secure, and the load capacity should be greater
than the total weight of the vehicle.
WARNING
-
Remove the shafts (2) between the outer
mast and tilt cylinders (A and B);
-
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.
8.1.2 Lifting Chains
-
-
Lower the mast to the bottom;
Press the emergency stop switch and discon-
nect the key switch;
8.1.2.1 Chain Adjustment
Switch off the power supply before any adjust-
ments or operations!
-
-
-
Loosen the lower jam nuts (2) on chain bolt (1,
Fig3131-60003SM);
Through screwing upward the jam nut (8) in
the upper, the chain will slowly tension;
When the chain is adjusted to be tensioned
with no obvious loosening, fasten the lower
jam nut;
When the adjustment is completed, there sh-
ould be an adjustable distance of at least three
pitches over the chain bolts.
-
-
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.
CAUTION
CAUTION
