Specifications

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(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 chain’s tightness equal.
8.5.3 Replace rollers of the lift bracket
(1) Place a pallet on the forks and let the truck parking on the horizontal ground.
(2) Make the forks and the pallet down to the ground.
(3) Disassemble the end nipple of the upper chain and take the chain down from
the sheave.
(4) Lift the inner mast (See Fig8.5 ①).
(5) Make the truck back-up if the lift bracket is fully separated from the outer mast.
(See Fig8.5 ②)
(6) Replace the main rollers.
·Disassemble all the snap rings and take out the main rollers with a drawing tool
except the adjusting shims.
·Ensure the new rollers have the same types as the replaced rollers. Install the
new rollers inside the lift bracket and fasten them with snap rings.
8.5.4 Replace rollers (Fig8.6)
(1) Use the same way as 8.5 to disassemble the lift bracket from the inner mast.
(2) Let the truck parking on the horizontal ground and wedge up the front wheels
for 250mm to 300mm.
(3) Apply the parking brake and wedge up the rear wheels.
(4) Disassemble the bolts which fasten the lift cylinder and the inner mast. Hang
up the inner mast not to loose the shims of the piston rod heads.
(5) Disassemble the connecting bolts for the lift cylinder and the bottom of the
outer mast. Disassemble the lift cylinders and the oil pipes between the two cylinders
without loosen the oil pipe joints.
(6) Main rollers on the upper outer mast will be showed on the top of the inner
mast as soon as main rollers were taken apart from bottom of the inner mast after
laying down the inner mast.
(7) Replace the main rollers.
·Disassemble the upper main rollers with a drawing tool, don’t loose the adjust