Routine Inspection And Maintenance - NPK PH1 Operator's Manual

ROUTINE INSPECTION AND MAINTENANCE

1. VISUAL INSPECTION
Detect a potential problem early.
FASTENERS
Inspect all fasteners and retighten as necessary. See page 58 for torque values.
WELDS
Check for cracks, repair as necessary, see the PH Service Manual.
HOSES AND TUBING
Check for oil leaks, loose clamps and hose abrasion.
RUBBER MOUNTS
Inspect for damage.
HYDRAULIC OIL: MAINTAIN A CLEAN HYDRAULIC SYSTEM
If non-petroleum oil is used, contact the NPK Service Department for compatibility.
Keep hoses clean and capped when dismounting or storing hammer. Change oil and
filters as recommended by carrier manufacturer. Periodic oil sampling is recommended.
2. DEMOLITION TOOL LUBRICATION
Important:
It is imperative that grease is maintained in the tool bushing
contact area at all times.
depending on job conditions.
Important:
The hammer must be in a vertical position with downforce applied
to push the tool all the way in. This prevents grease from entering
piston impact area.
grease is seen coming out between the tool and bushing.
USE A GOOD QUALITY, HIGH TEMPERATURE EP#2 GREASE
CONTAINING ANTI-WEAR ADDITIVES.
Lithium Base, Moly (Molybdenum Disulfide) or other surface
protecting additives, EP (Extreme Pressure), NLGI #2 Grease.
A high drop point (350° to 500°) grease is desirable.
If machine is equipped with an AUTO LUBE System, check grease reservoir daily.
3. TOOL and TOOL BUSHING WEAR
Check the tool and tool bushings for damage, wear or deformation on a regular weekly
basis. Replace the tool and/or bushings when wear exceeds the maximum clearance
limit. See MAXIMUM TOOL TO TOOL BUSHING CLEARANCE, see pages 52 and 53.
4. DO NOT SUBMERGE HAMMER UNDERWATER
Unless modified for underwater operation.
This may require hourly greasing
Pump grease into grease fitting until
Do not hardface or sharpen the tool point with a cutting torch. Excessive
heat from torching or welding causes embrittlement, breakage, and
flying pieces. Resharpen only with a lathe or milling machine using
sufficient cooling. Please consult your authorized NPK Dealer or NPK
Service Department for additional information.
NPK recommends a
- 46 -