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Section 4 • Repair Procedures
REV B
June 2007
4 - 22
GS-2668 RT • GS-3268 RT
Part No. 112657
SCISSOR COMPONENTS
GS-3268 RT
a
platform down solenoid valve
b
upper lift cylinder
c
lower lift cylinder
d
pressure switch (CE models)
4 Tag and disconnect the wiring from the solenoid
valve at the barrel end of the lift cylinder.
5 Tag, disconnect and plug the hydraulic hose
from the lift cylinder. Cap the fitting on the
cylinder.
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to squirt
or spray.
6 Attach a lifting strap from an overhead crane or
similar lifting device to the rod end of the lift
cylinder for support.
7 Remove the external snap ring from the lift
cylinder rod-end pivot pin. Use a soft metal drift
to remove the pin.
Crushing hazard. The lift cylinder
will fall if not properly supported.
8 Lower the cylinder to a horizontal position.
If removing the upper lift cylinder, disregard
step 9.
9 To remove the lower cylinder, support and
secure the entry ladder to an appropriate lifting
device. Remove the entry ladder mounting
fasteners. Remove the entry ladder from the
machine.
Crushing hazard. The entry ladder
could become unbalanced and fall
if not properly supported and
secured to the lifting device when
removed from the machine.
10 Support and secure the lift cylinder to an
appropriate lifting device.
11 Remove the external snap ring from the lift
cylinder barrel-end pivot pin. Use a soft metal
drift to remove the pin.
Crushing hazard. The lift cylinder
will fall if not properly supported.
12 Carefully pull the lift cylinder out the non-steer
end of the machine through the scissor arms.
Crushing hazard. The lift cylinder
could become unbalanced and fall
if not properly supported when
removed from the machine.
Component damage hazard. Be
careful not to damage the valve or
fittings on the cylinder while
removing it from the machine.
a
Y7A
A I
Note: 'alpha' callouts refer
to corresponding notes on
the hydraulic schematic
b
Y10A
Note: 'alphanumeric' callouts
refer to corresponding notes
on the electrical schematic
UPPER
CYLINDER
d
a
Y7
A I
AK
c
Y10
LOWER
CYLINDER
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Страница 184: ... from serial number GS6805 44771 Part No 112657 Rev C2 Service Manual GS 2668 RT GS 3268 RT ...