9 mast assembly and disassembly procedures, Table 2-2. vp series mast component features, 10vp – JLG 20VP (3120728) Service Manual User Manual

Page 44: Cable, 15vp, 20vp, Chain & cable, Mast disassembly procedure, Mast assembly and disassembly procedures -26, Mast section - assembly reference -26

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SECTION 2 - SERVICE PROCEDURES

2-26

– JLG Lift –

3120728

2.9

MAST ASSEMBLY AND DISASSEMBLY
PROCEDURES

The VP Series personnel lift mast sections are contructed
of extruded aluminum, protected with an anodized surface
finish. The mast sections 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.

Each VP model mast assembly contains a different num-
ber of mast sections as shown following;

Assembly procedures for all mast sections is basically the
same, carefully slide the mast sections together from bot-
tom until mast ends are even. (When sliding the mast sec-
tions together, be careful not to scratch the anodized
surface). Assemble the hardware to the bottom of mast
section first, slide this section out the top of previous sec-
tion and assemble hardware to the top of mast, (See Fig-
ure 2-1.)
. Always install slide pad shims with slide pads
inserted into the slide pad channels, (ends of mast sec-

tions even). Applying silicone spray onto the slide pads
and slide pad channels before assembly will help mast
sections slide easier after slide pads have been properly
shimmed.

Mast Disassembly Procedure

NOTE: Reference to mast sections-3/-4/-5 (platform mount-

ing section) depends on which VP model lift you are
working on.

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 and hardware from
the sides of the mast assembly. Also remove the
cover from the top of the mast assembly.

3.

Remove cable adjust nuts from threaded ends of
cable attached to the cable anchor plate on BOT-
TOM end of mast section-3/-4/-5 (platform mounting
section)
. Push threaded ends of cable through
anchor plate.

4.

At the TOP of mast section—3/-4/-5, pull cables out
and allow to hang loose.

NOTE: When sliding mast sections apart, be careful not to

scratch or score the anodized surface in the slide

pad channels.

Table 2-2. VP Series Mast Component Features

Model

No. of Mast

Sections

Extend/Retract

Device

10VP

3

Cable

15VP

4

Cable

20VP

5

Chain & Cable

Figure 2-18. Mast Section - Assembly Reference.

OPEN RAIL

(REFERS TO OPEN RAIL

FRONT OF MAST SECTION)

CLOSED RAIL

(REFERS TO CLOSED RAIL

BACK OF MAST SECTION)

BOTTOM

(REFERS TO BOTTOM END OF

MAST SECTION WHICH SETS IN

MACHINE’S BASE FRAME)

TOP

(REFERS TO TOP END

OF MAST SECTION

WHERE COVER AND

SHEAVE WHEELS

ARE ATTACHED)

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