JLG SSV10 Service Manual - Manual (Page 77)

SECTION 5 - MAST COMPONENTS
3121187 – JLG Lift – 5-5
5.7 MAST DISASSEMBLY PROCEDURE
The mast sections are constructed of extruded aluminum,
protected with an anodized surface finish. The mast sec-
tions are interlocked into each other when assembled, by
internally mounted slide pads at the top and bottom of
each mast section. These slide pads run up and down in
slide pad channels on each side of the mast.
The mast assembly contains the number of mast sections
as shown following;
Mast Disassembly Procedure
1. After the mast assembly has been removed from the
machine, lay the mast assembly down on a suitable
work table with the platform mounting section on
top, facing up.
2. Remove the sequencing cables, platform junction
box and hardware from the sides of the mast assem-
bly. Also remove the extend and return hydraulic
lines from the bottom of the lift cylinder.
MAST SECTION-4 - REMOVAL (Platform Mount)
3. Remove chain adjust nuts from threaded ends of
chain attached to the chain anchor plate (lower) on
BOTTOM end of mast section-4 (platform mounting
section). Push threaded ends of chain through
anchor plate.
4. At the TOP of mast section-3, pull chains out and
allow to hang loose. (Be certain floor surface is
clean and free of any metal chips or debris which
may stick to lubricated chains)
NOTE: When sliding mast sections apart, be careful not to
scratch or score the anodized surface in the slide
pad channels.
5. Carefully slide mast section-4 out the BOTTOM of
mast section-3 rails. Disassemble slide pads, shims
and chain anchor plate from mast section-4, if nec-
essary.
MAST SECTION-3 - REMOVAL
6. Remove chain adjust nuts from threaded ends of
chains attached to the chain anchor plate (lower) on
BOTTOM end of mast section-3. Push threaded
ends of chains through anchor plate.
7. At TOP of mast section-2, pull chains out and allow
to hang loose. (Be certain floor surface is clean and
Table 5-1. Mast Component Features
Model
No. of Mast
Sections
Extend/Retract
Device
SSV-10 4 Chain
Figure 5-2. Mast Cut-a-Way View
1. Lift Cylinder
2. Cylinder Lift Point
3. Wide Chain Set
4. Narrow Chain Set 5. Section-3 - Lift Chain
Anchor Bracket
6. Section-4 - Lift Chain
Anchor Bracket