Section 3 - Service & Repair Elevating Assembly
505115-000 Pa
e 3-23
R
EMOVAL
OF
E
LEVATING
A
SSEMBLY
Refer to Figure 3-16: “Elevating Assembly,” on pageSection 3-20.
1. Disconnect the batteries using the battery disconnect in front of the batteries in the battery tray.
2. Remove the
platform mast cover
(5), and the
controller cover plate
(6).
3. Detach the control cable inside the
controller
(7), remove the cable clamp in the top of the
platform
mast
(4), and feed the cable into the
second inner mast
section (3).
4. Using a suitable hoisting device, carefully raise the
platform mast
(4) until you can access the
outer
chain anchor
(10a).
5. Disconnect the
outer chain anchor
from the
platform mast
, but leave the anchor attached to the chains.
6. Remove the lower mast bearings from the
platform mast
. The front two mast bearings may be removed
by drilling out the lower pop rivets that retain the bearings.
7. Raise the
platform mast
straight up and off of the remaining mast sections.
8. Lay the chain that was detached from the
platform mast
over the top of the
upper cylinder mount
(17),
and place it down inside the
second inner mast
section.
9. Repeat steps 4 - 7 on the
second inner mast
section (3). The lower mast bearings are removed by
unscrewing the two screws on each bearing.
10. The upper chain set may now be removed by detaching the
upper chain/inner pulley mounts
from the
first inner mast
section (2). Carefully set the chain set aside on a clean surface.
11. Remove the single bolt that attaches the
cylinder
to the
upper cylinder mount
(17).
12. Using a suitable hoisting device, carefully raise the
first inner mast
section (2) up several inches.
13. Lay the remaining chain set over the top of the
cylinder
, and place it down inside the inner mast section.
14. Remove the lower mast bearings from the
first inner mast
section.
15. Raise the
first inner mast
section straight up and off of the remaining
base mast
section.
16. The inner chain set may now be removed.
17. If it is necessary to remove the
base mast
section, remove the nine bolts that secure it to the
chassis
. It
may be required to remove the
lift cylinder
to provide easier access to the bolts (see “Lift Cylinder” on
page Section 3-18).
I
NSTALLATION
OF
E
LEVATING
A
SSEMBLY
Refer to Figure 3-16: “Elevating Assembly,” on pageSection 3-20.
Installation of the elevating assembly is the reverse of removal.
• Torque the nine bolts that retain the
base mast
section to 68N-m (50 ft-lbs).
• For all of the cap screws that attach the chain anchors to the mast sections, apply Locktite #242 to the
screw threads and torque to 12N-m (107 in-lbs).
• For all of the screws that attach the mast bearings, apply Locktite Retainer #405 to the screw threads.
Do not torque, simply tighten securely
.
• Check elevating assembly for proper operation.
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