15
MA-1055-110
03 Rev. 9/07
SAFETY
Control of Hazardous Energy
Removing Mast
1. Move truck to a secure non-traffic maintenance
area with a level floor.
2. Lockout or tagout truck as described in Lockout -
Tagout in this section.
3. Remove battery.
4. Remove forks.
5. Operate all hydraulic levers to remove any hydrau-
lic pressure in the system.
6. Disconnect lift cylinder hydraulic lines, accessory
cables and accessory hydraulic lines between
power unit and mast if present. Use container to
catch hydraulic oil.
7. Disconnect wiring between mast and power unit.
8. Support mast as described in Disconnecting Tilt
Cylinders in this section.
9. Chain mast sections together at the upper cross-
braces. Chain fork carriage to lower mast cross-
brace. This will keep carriage and mast sections
from moving when the mast is laid down.
10. Remove retaining rings connecting tilt cylinders to
the mast.
11. Remove pivot block mounting bolts. If pivot blocks
are to be removed, note number and location of
shims between pivot blocks and mast.
12. Move mast away from truck and lay mast on level
floor with the truck side of the mast on the floor.
Figure 16933-01
a
Mounts to Truck Frame
b
Remove Retaining Ring
c Part of Mainframe
Figure 16934-01
a
Power Unit
b
Mast
cShim
Crown 2006 PF15396-11 Rev. 9/07
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