Mast Cylinder Disassembly; Mast Cylinder Installation - JLG TOUCAN 8E Service And Maintenance Manual

SECTION 5 - TURNTABLE AND VERTICAL MAST
The blockings must rest on turntable circular base
plate. Secure the blockings with C-clamps.
Figure 5-48. Supporting Mast Sections for Mast Cylinder
4. Using the ground controls, lower the mast until mast
section #2 bottom rests on blockings.
5. Remove one cotter pin from the mast cylinder
anchor pin. Drive the pin out using a suitable drift.
6. While controlling a mast lowering movement from
ground controls (or manual descent), manually help
the cylinder rod to retract (use a mallet if necessary).
Fully retract the rod.
7. Once fully retracted, remove cylinder holding valve:
Refer to Section 7.
(T10E/T26E): Unhook the cylinder from its supports.
Move the cylinder out of the mast.
5-26
Removal
T8E/T20E: Using an adequate lifting equipment and
slings, remove the mast cylinder.
Figure 5-49. Mast Cylinder Removal
NOTE: Care should be taken not to damage the Drive Orien-
tation Switch. Remove the switch if necessary, but do
not disconnect. Refer to Section 8-2.

Mast Cylinder Disassembly

Refer to Section 7.

Mast Cylinder Installation

1. Position the cylinder (fully retracted) onto the mast
assembly.
NOTE: Route the Drive Orientation Switch harness between
the two cylinder supports on turntable base plate
(T10E/T26E).
2. Install cylinder holding valve: Refer to Section 7.
3. Using the ground controls, extend the cylinder until
the hole of the rod aligns with the mounting holes of
the mast section #2. Install the anchor pin and the
cotter pin.
4. Using the ground controls, fully extend the cylinder
and remove blockings.
5. From ground controls, perform a few mast raising/
lowering movements to bleed air from the circuit and
to check for proper operation.
6. Check hydraulic fluid level and adjust accordingly.
Install chassis shield and hoods.
– JLG Lift – 31210090