Harbor Freight Tools 6" Air Dual Action Sander 68152 - Manual (Page 15)

Page 15 For technical questions, please call 1-800-444-3353. Item 68152
SAFET
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Op
ERA
TION
M
AINTENAN
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E
SETU
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User-Maintenance Instructions
procedures not specifically explained in this manual
must be performed only by a qualified technician.
TO pREVENT SERIOUS INJURy FROM AccIDENTAL OpERATION:
Turn off the tool, detach the air supply, safely discharge any residual
air pressure in the tool, and release the trigger before performing
any inspection, maintenance, or cleaning procedures.
TO pREVENT SERIOUS INJURy FROM TOOL FAILURE:
Do not use damaged equipment. If abnormal noise, vibration, or
leaking air occurs, have the problem corrected before further use.
TO pREVENT SEROUS INJURy FROM EXpLOSION:
Lubricate the tool only with specified lubricants. Lubricate the air inlet using only
pneumatic tool oil. Other lubricants may damage the mechanism and may be
highly flammable, causing an explosion.
cleaning, Maintenance, and Lubrication
Note: These procedures are in addition to the regular checks and maintenance
explained as part of the regular operation of the air-operated tool.
1. BEFORE EAcH USE, inspect the general
condition of the tool. Check for:
• loose hardware or housing
• misalignment or binding of moving parts
• cracked or broken parts
• any other condition that may
affect its safe operation.
2. Daily - Air Supply Maintenance:
Every day, maintain the air supply according
to the component manufacturers’ instructions.
Maintain the lubricator’s oil level.
Drain the moisture filter regularly.
Performing routine air supply maintenance
will allow the tool to operate more safely
and will also reduce wear on the tool.
3. Quarterly (every 3 months) –
Tool Disassembly, cleaning,
and Inspection:
Have the internal mechanism
cleaned, inspected, and lubricated
by a qualified technician.
If the vanes need replacement,
replace them all as a set.
Replacing the Backing pad
1. Disconnect from air source.
2. Turn the Spindle Lock so it engages with the
Drive Spindle, keeping it from freely turning.
With the Drive Spindle locked in place, grasp
the Backing Pad and unscrew from Drive
Spindle. Refer to Figure C on page 13.
3. Thread the new Backing Pad securely into
the Drive Spindle, then turn the Spindle Lock
back, allowing the Drive Spindle to freely
turn. Refer to Figure C on page 13.
Note: Ensure that the Spindle Lock is fully
disengaged from the Drive Spindle prior to
use. If the tool is operated with the Spindle
Lock engaged with the Drive Spindle, the
Sander will spin rather than randomly orbit.