910193 - Hydraulic Impact Wrench
Phone: (262) 637-9681
4.2021 Rev 2.1
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16
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Section 4: Maintenance
It is highly recommended to practice regular check-ups and maintenance in accordance with the usage
frequency to keep your tool in better condition and reduces total running costs.
Do not perform maintenance on the Hydraulic Impact Wrench
while the hydraulic power unit is running with the hoses
connected.
Note: To more accurately tighten bolts, lubricate threads, check with a torque wrench and duplicate
time of impacting for other bolts of the same length and thread size.
Shut off the power source engine, ensure that all controls are in a safe position and install all appropriate
locking and safety devices before doing any of the following:
•
Lubricating
•
Adjusting
•
Making Repairs
•
Performing Service
Comply with all Lock Out / Tag Out Procedures and other safety procedures established for your work
environment
The most important maintenance practice is to keep the hydraulic fluid clean at all times. Contaminated
hydraulic fluid causes rapid wear and/or failure of internal parts.
Never disassemble the main housing unless proper troubleshooting procedures have isolated the
problem to an internal part. Then, disassemble the tool only to the extent necessary to replace the
defective part.
Keep contaminants such as dirt and grit away from internal parts
at all times
The impact mechanism is subject to grease
squeeze out.
Impact,
heat accumulation and centrifugal force will contribute to throwing
the grease away from moving parts and an expansion pressure
pushing lubricant out the anvil bushing.
Maintenance intervals vary with daily cycles, impact energy
intensity and lubricant quality.
It is very important that an inspection schedule be established to
ensure that parts inside the mechanism are well lubricated.
Remove any grease that appears to be burned. Make sure grease
is packed around all parts.
Always determine and correct the cause of the problem prior to reassembly. Further wear and tool failure
can result if the original cause is not corrected
