Mast Lock (Pivot Lock) Inspection & Adjustment Instructions - Efco SWAPLOADER SL-518 Parts And Operation Manual

Section IV: Maintenance
MAST LOCK INSPECTION & ADJUSTMENT INSTRUCTIONS
All SwapLoader hook-lift hoists come with a mast lock (safety latch) assembly that is located on
the bottom side of the outer tube. When the jib is extended the mast lock then engages the
latch bars (forks) on the pivot joint, making the jib, outer tube, and pivot joint into a continuous
member for raising the container or body up into a dump mode.
With the jib fully retracted the mast lock then disengages the latch bars on the pivot joint
allowing the hook-lift to enter the mount-dismount cycle by pivoting around the front pins of the
pivot joint. A properly adjusted mast lock will function smoothly and clear the latch bars on the
pivot joint approximately a 1/4" (see illustrations below).
INSPECTION
The mast lock assembly comes adjusted from the factory and should provide years of trouble-
free operation, however there may come a time when an adjustment may be required. Prior to
making any adjustments, SwapLoader recommends that you begin with inspecting all mast lock
components for damage or wear (see illustration below).
Inspect the adjustment tube and bolt on the jib; make sure nothing is missing or bent. Inspect
the release lever and connection bar on; look for any missing or bent components such as ears
or pins. Inspect the safety latch; again, make sure there are no missing or bent components.
Repair or replace any missing or bent components prior to making any adjustment to the mast
lock assembly; refer to the mast lock (safety latch) assembly drawing for proper part numbers
and identification of the components (see Pg. 5-5 in the Parts Section of the manual).
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