Group 34, Uprights
SM 765, Nov ’06 Fork and Carriage Removal and Replacement • 34-7-3
6. Disconnect the carriage chains at the base of the car-
riage. Pull chains back off primary cylinder sheave.
7. For carriage auxiliary components, disconnect hoses
(2- or 4-hose assemblies) from carriage. Remove the
bolts and strap fixture also.
• Cap all lines to prevent leaks.
• Label all lines and fittings for correct reassembly.
8. Elevate the primary cylinder to its maximum height.
Be sure all hoses and loose parts are secured out of
the way to prevent damage.
9. Continue elevating the upright until the inner rail
clears the carriage.
10. Remove steer wheel blocks. Release the parking
brake and slowly back the truck away from the car-
riage.
11. Lower the upright rails until both of the secondary
cylinders are completely collapsed.
Carriage Replacement
To replace the carriage:
1. First check to be sure the carriage is securely
clamped to the pallet.
2. Move the truck up to the carriage assembly with the
inner rail centered on the carriage.
3. Raise the upright until the inner rail is high enough to
clear the upper carriage rollers.
4. Tilt the upright until it is at the same angle as the car-
riage assembly.
5. Now slowly move the truck forward until the inner
rail is centered over the carriage rollers.
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