8.2.2 Carriage adjustment
(1) Let the truck parking on the horizontal ground and make the mast vertical. See it as
Fig.8-5.
(2) Let the bottom of the fork contact with the ground. Adjust the adjusting nut for the
end nipple of the upper chain and make a distance A between the main roller and the
carriage. A:20～34mm.
(3) Make the fork down to the ground and tilt backward fully. Adjust the adjusting nut
for the end nipple of the upper chain and make the two chains’ tightness be equal. (Fig.8-6)
Fig.8-5 Fig.8-6
8.2.3 Carriage rollers replace
(1) Fork a tray on the fork and let the truck parking on the horizontal ground. (Fig.8-7)
(2) Make the fork and the tray down to the ground.
(3) Disassemble the end nipple of the upper chain and take the chain down from the
sheave. (Fig.8-6)
(4) Lift the inner mast. (See Fig.8-7①)
(5) Made the truck back-up if the carriage is fully separated from the outer mast. (See
Fig.8-7②)
(6) Replace the main rollers.
· Disassemble all the snap rings and take the main rollers down with a drawing tool
and remain the shims.
· Ensure the new rollers are equal to the replaced ones. Install the new rollers inside
the carriage and block them with snap rings.
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