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MODEL 220
HYDRAULIC
IMPACT HAMMER
IV.
MAINTENANCE AND ADJUSTMENTS
C. AFTER START-UP, CHECK THE FOLLOWING
Check all hydraulic hoses for leaks. Make sure they hang freely with no kinks.
Check both pumps and all hydraulic manifolds for leaks.
Check the filter indicator. The return filter on the power unit must be checked with
the diesel engine running at maximum RPM and oil temperature at or above 60°F
(16°C).
D. MAINTENANCE -MONTHLY
Re-Torque ALL hammer bolts per Torque Table Page VIII-52???.
Retorque set screws on cylinder rod super nut.
Inspect ram bumpers at top of stroke.
E. MAINTENANCE - EVERY 4 MONTHS
Have the hydraulic oil tested by a local hydraulic service center.
required.
Disassemble, inspect and lubricate the connection between cylinder rod and the
ram.
Check the nitrogen gas charge in both accumulators.
F. ANNUALLY
Remove, inspect, lubricate and re-tension the four wire rope assemblies that hold
the hammer together. (Tensioning tool required)
Replace 8 Ram Bearings (P/N 160447).
IV-3
Replace if
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