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SECTION 4 - BOOM & PLATFORM
7. Remove the lower upright from lower boom assembly.
8. Attach an adequate supporting device to the tower lift
cylinder to support its weight.
9. Remove mounting hardware from pins. Using a suitable
brass drift and hammer, remove the pins from turntable.
10. Using all applicable safety precautions, carefully lift
lower boom assembly clear of turntable and lower to
ground or suitably supported work surface.
11. Using all applicable safety precautions, carefully lift
tower lift cylinder and lower boom timing link clear of
turntable and lower to ground or suitably supported
work surfaces.
4-8
Lower Boom Installation
NOTE: The mid and lower booms together weighs approximately
1126.56 lbs. (511 kg).
1. Using all applicable safety precautions, carefully lift
lower boom assembly to align the pivot holes in the
lower boom with those of the turntable.
2. Align lower boom assembly with the turntable. Using a
soft head mallet, install pins into turntable and secure
with mounting hardware.
3. Using all applicable safety precautions, carefully lift and
align lower upright with lower boom assembly. Using a
soft head mallet, install pins into lower upright and
MAE16220
secure with mounting hardware.
4. Align lower boom timing link with lower boom assem-
bly. Using a soft head mallet, install pin into lower boom
timing link and secure with mounting hardware.
5. Using all applicable safety precautions, carefully lift and
align tower lift cylinder assembly with lower boom
assembly. Using a soft head mallet, install pin into tower
lift cylinder assembly and secure with mounting hard-
ware.
Mid Boom Installation
NOTE: The mid and lower booms together weighs approximately
1126.56 lbs (511 kg).
MAE16230
1. Using all applicable safety precautions, carefully lift mid
boom assembly to align the pivot holes in the mid
boom with those of the lower upright.
2. Align mid boom assembly with the lower upright. Using
a soft head mallet, install pins into lower upright and
secure with mounting hardware.
3. Attach an adequate supporting device to the tower lift
cylinder to support its weight.
4. Using all applicable safety precautions, carefully lift and
align tower lift cylinder with mid boom assembly. Using
a soft head mallet, install pin into tower lift cylinder and
secure with mounting hardware.
5. Align upper upright with mid boom assembly. Using a
soft head mallet, install pins into upper upright and
secure with mounting hardware.
6. Connect hydraulic lines to the tower lift cylinder as
tagged during removal.
3121634
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Troubleshooting
