March 2021
Service and Repair Manual
Scissor Components
Part No. 1272217GT
GS
™
-30 • 32 • 46 • 47
89
70 Raise the number 1 inner arm (index #10)
approximately 2 feet / 60 cm and install the
safety arm between the number 1 inner arm
(index #10) and the number 1 outer arm
(index #22) at the non-steer end of the
machine. Lower the scissor arms onto the
safety arm.
Bodily injury hazard. Keep
hands clear of moving parts
when lowering the scissor arms
onto the safety arm.
71 Attach a lifting strap from an overhead crane
to the lug on the rod end of the lift cylinder
(index #5). Raise the lift cylinder
approximately 3 ft / 1 m.
72 Tag, disconnect and plug the hydraulic hoses
on the lift cylinder. Cap the fittings 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.
73 Tag and disconnect the wires and manual
lowering cable from the solenoid valve on the
cylinder.
74
Models with platform overload option:
Tag
and disconnect the wire harness from the
platform overload pressure transducer.
Note: After replacing the scissor assembly, the
platform overload system must be calibrated.
Refer to Repair Procedure,
How to Calibrate the
Platform Overload System (if equipped).
75 Raise the lift cylinder to a vertical position.
76 Remove the pin retaining fasteners from the
lift cylinder barrel-end pin (index #21). Use a
soft metal drift to remove the pin. Remove the
lift cylinder from the machine.
Crushing hazard. The lift
cylinder will become unbalanced
and fall if not properly supported
and secured to the lifting device.
Component damage hazard. Be
careful not to damage the valve
or fittings on the cylinder while
removing it from the machine.
77 Place a 4 x 4 x 48 inch / 10 cm x 10 cm x
1.2 m long block across both sides of the
chassis under the number 1 center pivot pin
(index #11).
78 Attach a lifting strap from an overhead crane
to the number 1 inner arm (index #10) at the
non-steer end. Raise the number 1 inner arm
and remove the safety arm. Lower the
number 1 inner arm (index #10) onto the
block that was placed across the chassis.
Bodily injury hazard. Keep
hands clear of moving parts
when lowering the scissor arms.
79 Remove the cables from the number 1 cable
bridge and lay them off to the side.
Component damage hazard.
Cables can be damaged if they
are kinked or pinched.
80 Support and secure the entry ladder to an
appropriate lifting device.
