Hyundai 35DS-7 Operation Manual page 241

5) ELEVATING MAST
Inner mast (V, VF mast)
(1)
After completing all necessary steps for load rollers and back up liner removal use an overhead
hoist and sling or chain around upper crossmember of the inner mast section.
Lift inner mast upright straight up and out of outer mast section.
Replace and reverse above procedure to install. Make all necessary measurements and
adjustments.
( ( 2) Inner and middle mast(TF mast)
After completing all necessary steps for load rollers and back up liner removal. Remove rear
chains and sheave support if not already done.
Disconnect free lift cylinder hose. Drain hose into a suitable pan or container and cap hose.
While supporting free lift cylinder assembly, remove bolts and washers securing cylinder to mast
crossmember.
Place a sling around free lift cylinder and attach to an overhead hoist. Slowly raise and move
cylinder to one side.
Attach chains or sling to the inner mast section at top crossmember. Using an overhead hoist
slowly raise the upright straight up and out of middle mast section.
Attach chains or sling to the middle mast section at top crossmember. Using an overhead hoist
slowly raise the upright straight up and out of outer mast section.
Replace upright and reverse above procedure to install. Make all necessary measurements and
adjustments.
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