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WEEKLY SERVICE - (50 OPERATIONS)
1.
Lubricate with grease (Refer to Lubrication Diagram)
-
Lifting hook on jib
-
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
3.
Check hydraulic hose and fittings for leaks. Also check hydraulic hose for wear. Repair
and/or retighten as necessary.
MONTHLY SERVICE - (200 OPERATIONS)
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 page 4-7 of the maintenance section.
4.
Check adjustments on the jib lockout valve. Refer to the Jib Lockout Valve Inspection &
Adjustment Instructions on page 4-9 of the maintenance section.
YEARLY SERVICE
1.
Check for proper gapping on outer tube clamp assembly. Refer to the Outer Tube Clamp
Inspection & Adjustment Instructions on page 4-13 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 page 4-11 of
the maintenance section. (Pressure should be 3,500 PSI minimum).
SL-400.MAI
07/2009
MAINTENANCE INSTRUCTIONS
).
4-1
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