Mast Removal; Mast Installation - JLG 10msp Service And Maintenance Manual

SECTION 5 - MAST COMPONENTS

5.9 MAST REMOVAL

1. In order to remove the mast assembly, first elevate the
platform approximately 4 ft (1.2 m), then remove the fol-
lowing components:
• Front Hood (Section 3.2)
• Drive Motors Cover (Section 3.2)
• Platform/Material Tray Assembly (Section 5.3)
2. Once those components have been removed, lower the
platform completely, using the Manual Descent Valve if
necessary, then remove the following components:
• Platform Control Console (Section 4.2)
• Mast Cover (Section 5.2)
• Platform/Material Tray Assembly (Section 5.3)
• Battery Charger Assembly (Section 3.7)
3. Unplug the platform control cable (P4) connector at the
ground control module.
4. Unplug and remove the amber beacon mounted on the
front of the mast assembly.
5. Disconnect and cap the hydraulic extend and return
lines from the hydraulic cylinder either on the valve
block at the bottom of the cylinder or at the pump
assembly. (See Section 5.8 for special tool instructions).
6. Using an overhead crane or suitable lifting device capa-
ble of supporting the weight of the mast assembly,
attach a sling strap to the mast.
5-16
1. Mast Mounting Column
Note: (a) Apply Loctite #271 to bolt threads on final assembly.
Note: When lifting the mast out of the base frame be careful with
the manual descent valve and extend/return lines protrud-
ing from the bottom front of the mast assembly.
8. Remove the four mast attach bolts with washers and
nuts securing the mast to the mounting column.
9. Carefully lift the mast off the base frame and place on a
suitable work surface.

Mast Installation

1. Reverse the Mast Removal instructions to reinstall mast.
2. Once assembly is
several times, then check the oil level in the hydraulic
reservoir.
– JLG Lift –
2
2. Mounting Bolt/Washer/Nut
Locations (a)
complete, cycle the mast up and down
1
3121228