Install the tilt lock valve'(TM 10-3930-632-12).
Section VI. CARRIAGE, LIFT CHAINS, AND ROLLERS
The carriage rollers ride within the inner channels of the
beams that form the uprights of the inner mast, providing
Remove the carriage and chains (para 2-6a).
smooth up and down movement of the carriage. Smaller
rollers, mounted perpendicular to the lamp rollers, also
ride against the inner rail and prevent side to side
movement of the carriage. The chains also ride on ball
Refer to figure 4-7 and disassemble the carriage, lift
bearing rollers which are installed on short shafts on the
chains, and rollers.
piston head of the lift cylinder.
Change 1 4-11