Hyster N30ZDR, Руководство пользователя

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Double-Reach Scissor Arms
DISASSEMBLE
The entire scissor assembly may not need to be dis-
assembled to make repairs. Perform only the steps
necessary to safely complete the necessary repairs.
For the following procedures, refer to Figure 15.
WARNING
There are pinch points on the reach carriage that
can cause an injury. Use clamps and blocks to
prevent the scissor arms from moving. Install the
clamps and blocks at the channels of the rear
frame to make sure that the load rollers cannot
move in the channel. See Figure 8.
Be careful when removing or installing snap
rings. These snap rings are large and can come
loose during removal or installation with enough
force to cause an injury. Always use the correct
snap ring pliers and wear eye and face protection
during removal or installation.
NOTE:
Use safety chains on the rear frame and
mast weldments to keep the rear frame and mast
weldments from moving. Install the safety chains
as described in Safety Procedures When Working
Near Mast in this section.
1.
Remove the front frame as described in Reach
Assembly Front Frame. Remove the snap rings
and hose sheaves at the scissor arm weldments.
Fasten the cable and hoses at the rear frame so
they are not damaged.
2.
Remove the hydraulic components from the
reach carriage assembly as required.
3.
Use a crane to support scissor arm weldment A.
Securely attach chains or slings to the weld-
ment so that it cannot slip. Be sure not to dam-
age the hose mount sheaves.
4.
Install the clamps and blocks at the channels of
the rear frame to make sure the load rollers
cannot move in the channel and the scissor
arms cannot retract. See Figure 8.
WARNING
The points between the scissor arms and the rear
frame are pinch points and can cause an injury.
DO NOT put your hands near pinch points when
removing the pivot pins. Use a hammer and brass
drift to remove the pins.
5.
Remove the shoulder bolt and nut from the
reach cylinder pins. Use a drift to drive out the
cylinder rod end pins attaching the reach cylin-
ders to the inner scissor arm. Use wire to hold
each reach cylinder and their hoses in position
when the pins are removed. Remove the bush-
ings from the mounts. See Figure 21.
6.
Remove the cotter pin, castle nut, and washer
from the threaded shaft on the bottom pivot
points of outer scissor arms D and C. See Fig-
ure 15.
WARNING
The scissor arms are heavy and can cause an in-
jury if allowed to fall. Have another person help
you support the scissor arm during removal and
installation.
7.
Remove the three capscrews, lockwashers, end
cap, and the spacer at the center pivot for outer
scissor arm D. Hold outer scissor arm D and
slide it and the bearing assembly off the stub
shaft. Remove the bearing at the center pivot.
Remove scissor arm C following this same pro-
cedure.
Double-Reach Scissor Arms 4500 SRM 1196
22