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WEEKLY SERVICE
(50 OPERATIONS)
MONTHLY SERVICE
(200 OPERATIONS)
YEARLY SERVICE
4.0.MAI.SL-412
MAINTENANCE INSTRUCTIONS
1. Lubricate with grease (refer to lubrication diagram).
Lifting hook on jib (if operating the adjustable jib be sure to
rotate and grease hook).
Jib slide - top, bottom, and side guides.
2. Check hydraulic oil level. with the hoist in the transport position (lift
cylinders retracted and jib cylinder extended – see diagram on front
cover) the oil level in the
tank should read
approximately one inch
below the top of the glass
sight on the
temperature/sight gauge
(see diagram
).
Check hydraulic hose and
3.
fittings for leaks. Also
check hydraulic hose for
wear. Repair and/or
retighten as necessary.
1. Lubricate with grease (refer to lubrication diagram)
Fittings on lift cylinders (quantity: 4).
Front pins on rear pivot joint weldment (quantity: 2).
Fittings on rear pivot pins and rollers (quantity: 4).
2. Check all bolts and retighten as required.
3. Check adjustments on mast lock (safety latch) mechanism. Refer
to the Mast Lock Inspection & Adjustment Instructions on Pg. 4-4 of
the Maintenance section.
4. Check adjustments on the jib lockout valve. Refer to the Jib
Lockout Valve Inspection & Adjustment Instructions on Pg. 4-5 &
4-6 of the Maintenance section.
1. Check for proper gapping on outer tube clamp assembly. Refer to
the Outer Tube Clamp Assembly Inspection Instructions on Pg.
4-10 of the Maintenance section.
2. Change hydraulic oil, replace hydraulic filter element, and wash out
suction strainer.
3. Check main relief valve setting. Refer to the pressure check
instructions on Pg. 4-7 to 4-9 of the Maintenance section (pressure
should be 3,500 psi minimum).
Section IV: Maintenance
4-1
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