
Section 4 • Repair Procedures
Part No. 227656
GR-20J • GR-26J
4 - 25
September 2016
10 Tag, disconnect and plug the hydraulic hose at
the top of the lift cylinder. Remove the hose
connector from the lift cylinder. Plug the lift
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.
11 Attach a lifting strap of suitable capacity from an
overhead crane to the mast head, jib boom and
platform assembly. Support the assembly. Do
not apply any lifting pressure.
Component damage hazard. The
platform railings can be damaged
if they are used to lift the
assembly. Do not attach the lifting
strap to the platform railings or put
pressure on the railings.
12 Remove the fasteners securing the mast head
to the mast assembly. Set the fasteners to the
side.
MAST COMPONENTS
13 Raise the mast head, jib boom and platform
assembly and move the assembly
approximately 20 inches / 50 cm towards the
non-steer end of the machine.
Crushing hazard. The mast head,
jib boom and platform assembly
could become unbalanced and fall
when removed from the machine.
Component damage hazard.
Cables and hose can be damaged
if they are kinked or pinched.
Note: During removal the mast head, jib boom and
platform assembly, the overhead crane strap will
need to be carefully adjusted for proper balancing.
14 Remove the fasteners securing the lift cylinder
to the mast head. Set the fasteners to the side.
15 Attach a lifting strap from an overhead crane to
the lift cylinder.
16 Carefully remove the lift cylinder from the
machine.
Crushing hazard. The lift cylinder
could become unbalanced and fall
if not properly supported when
removed from the machine.
Component damage hazard. The
lift cylinder can be damaged if it
falls.
Содержание GR-26J
Страница 12: ...September2016 GR 20J GR 26J Part No 227656 This page intentionally left blank ...
Страница 75: ...Section 4 Repair Procedures Part No 227656 GR 20J GR 26J 4 29 September2016 This page intentionally left blank ...
Страница 109: ...Section 6 Schematics Part No 227656 GR 20J GR 26J 6 3 September2016 ECM Pin out Legend ...
Страница 118: ...Section 6 Schematics 6 12 GR 20J GR 26J Part No 227656 September2016 This page intentionally left blank ...