JLG 1230ES Service Manual User Manual

Page 111

SECTION 6 - MAST COMPONENTS

3121222

– JLG Lift –

6-11

11. Before tightening the mast mounting bolts/nuts,

check mast for vertical front/rear and left/right
plumb. Per following table:

Tighten the mast mounting bolts/nuts to 62 ft. lbs.
(88Nm), in the following sequence:

1. Left Front

3. Left Rear

2. Right Rear

4. Right Front

12. At the top of the mast, if reinstalling the power-trak,

reach down into the power-trak compartment and
pull the power-trak assembly up, attach the hanger
bracket to the top of the mast assembly. (See Figure
6-13.)

13. Re-install the platform assembly (See Platform Instal-

lation on page 6-5).

Plumb, maximum - Front/Rear

3 in. (76mm)

Plumb, maximum - Left/Right

2 in. (50mm)

Mast Lower End - Installation - Original Design

1. Control Cable P-Clamp (a)
2. Route Cable Through Notch

in Mast Baffle Plate

3. Left-Front Mast Mounting

Bolt (b)

Note: (a) Install clamp between washer and nut of the right-rear

mast mounting bolt.
(b) An extra washer may be required to space the screw
away from the RED manual descent button on the lift cylin-
der. Torque mast mounting bolts to 62 ft. lbs. (88 Nm),
tighten in an X (cross) tightening pattern.

Mast Lower End - Installation - Later Design

1. Control Cable Frame P-

Clamp (a)

2. Control Cable Mast P-Clamp

- Attach to Bracket

3. Left-Front Mast Mounting

Bolt (b)

Note: (a) Install clamp between washer and nut of the right-rear