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SKU 97593 

For technical questions, please call 1‑800‑444‑3353. 

Page 11

MAINTENANCE AND 

SERVICING

  Procedures not specifically 

explained in this manual 

must be performed only by a 

qualified technician.

 

TO PREVENT 

SERIOUS INJURY 

FROM ACCIDENTAL 

OPERATION: 

Turn the Power Switch of the 

tool to its “OFF” position and 

unplug the tool from its 

electrical outlet before 

performing any inspection, 

maintenance, or cleaning 

procedures.
TO PREVENT SERIOUS 

INJURY FROM TOOL 

FAILURE: 

Do not use damaged 

equipment.  If abnormal noise 

or vibration occurs, have the 

problem corrected before 

further use.

Cleaning, Maintenance, and 

Lubrication

1. 

BEFORE EACH USE,

 inspect the 

general condition of the tool.  Check 

for loose screws, misalignment or 

binding of moving parts, cracked or 

broken parts, damaged electrical wir-

ing, and any other condition that may 

affect its safe operation.

2. 

AFTER USE,

 clean external surfaces 

of the tool with clean cloth.

3. 

CARBON BRUSH MAINTENANCE.

 

The carbon brushes may require 

maintenance when the motor perfor-

mance of the tool decreases or stops 

working completely.  To maintain the 

brushes:

a. Remove the brush cap (14) on each 

side of the motor housing.

b. Remove the carbon brushes (12) 

from the housing.  

Keep track of 

which orientation the old carbon 

brushes were in to prevent need‑

less wear if they will be rein‑

stalled.

c. If either carbon brush is worn down 

by more than 1/2, replace 

both

 car-

bon brushes.

d. To clean old carbon brushes before 

reusing them, rub the contact areas 

with a pencil eraser.

e. Reinsert the old carbon brushes in 

the same orientation to reduce wear.

f.  When installing the carbon brushes, 

make sure the carbon portions of the 

carbon brushes contact the motor 

armature, and that the springs face 

away from the motor.  Also, make 

sure the springs operate freely.

g. Replace the brush caps.  Do not 

overtighten.

Note:

  New carbon brushes tend to spark 

when first used until they wear and 

conform to the motor’s armature.

4. 

WARNING!  If the supply cord of 

this power tool is damaged, it must 

be replaced only by a qualified 

service technician.

Summary of Contents for 97593

Page 1: ...s reserved No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools Diagrams within this manual may not be drawn proportionally Due to continuing improve ments actual product may differ slightly from the product described herein Tools required for assembly and service may not be included For technic...

Page 2: ...he safety alert symbol indicates a hazardous situation which if not avoided could result in minor or moderate injury NOTICE is used to address practices not related to personal injury CAUTION without the safety alert symbol is used to address practices not related to personal injury General Power Tool Safety Warnings WARNING Read all safety warnings and instructions Failure to follow the warnings ...

Page 3: ...al injury b Use personal protective equip ment Always wear eye protection Safety equipment such as dust mask non skid safety shoes hard hat or hearing protection used for appropri ate conditions will reduce personal injuries c Prevent unintentional starting Ensure the switch is in the off po sition before connecting to power source and or battery pack pick ing up or carrying the tool Carry ing pow...

Page 4: ...g tools with sharp cutting edges are less likely to bind and are easier to control g Use the power tool accessories and tool bits etc in accordance with these instructions taking into account the working conditions and the work to be performed Use of the power tool for operations differ ent from those intended could result in a hazardous situation 5 Service a Have your power tool serviced by a qua...

Page 5: ...ilter out microscopic particles California Health Safety Code 25249 5 et seq 10 WARNING Handling the cord on this product will expose you to lead a chemical known to the State of California to cause cancer and birth defects or other reproductive harm Wash hands after handling Califor nia Health Safety Code 25249 5 et seq 11 The warnings precautions and in structions discussed in this instruction m...

Page 6: ...K AND DEATH FROM INCORRECT GROUNDING WIRE CONNECTION Check with a qualified electrician if you are in doubt as to whether the outlet is properly grounded Do not modify the power cord plug provided with the tool Never remove the grounding prong from the plug Do not use the tool if the power cord or plug is damaged If damaged have it repaired by a service facility before use If the plug will not fit...

Page 7: ... insulated tools may be used in either of the 120 volt outlets shown in the preceding illustration See Outlets for 2 Prong Plug Extension Cords 1 Grounded tools require a three wire extension cord Double Insulated tools can use either a two or three wire extension cord 2 As the distance from the supply outlet increases you must use a heavier gauge extension cord Using exten sion cords with inadequ...

Page 8: ...ENSION CORDS 120 240 VOLT NAMEPLATE AMPERES at full load EXTENSION CORD LENGTH 25 50 75 100 150 0 2 0 18 18 18 18 16 2 1 3 4 18 18 18 16 14 3 5 5 0 18 18 16 14 12 5 1 7 0 18 16 14 12 12 7 1 12 0 18 14 12 10 12 1 16 0 14 12 10 16 1 20 0 12 10 TABLE A Based on limiting the line voltage drop to five volts at 150 of the rated amperes Symbology Double Insulated Canadian Standards Association Underwrite...

Page 9: ... Assembly Diagram near the end of this manual OPERATING INSTRUCTIONS Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product Tool Set Up TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION Turn the Power Switch of the tool to its OFF position and unplug the tool from its electrical outlet...

Page 10: ...r Re move the old Belt and replace with a new 4 x24 belt Make sure the ar rows on the inside of the new sanding belt are consistent with the rotation arrow on the rear wheel 39 Push the Belt Release Lever back in to se cure the Belt in place and make sure it s on center before starting a job 5 Belt Release Lever When sanding use both hands to hold the tool and sand along the grain for best results...

Page 11: ...RBON BRUSH MAINTENANCE The carbon brushes may require maintenance when the motor perfor mance of the tool decreases or stops working completely To maintain the brushes a Remove the brush cap 14 on each side of the motor housing b Remove the carbon brushes 12 from the housing Keep track of which orientation the old carbon brushes were in to prevent need less wear if they will be rein stalled c If e...

Page 12: ...ect power supply before service PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTURER AND OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY NEITHER THE MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALIFIED TO REPLACE ...

Page 13: ...ng 1 41 Base 1 42 Screw 4 2x16 1 Part Description Qty 43 Needle Bearing 1 44 Rear Wheel Axis 1 45 Gear 1 46 Gear Box Cover 1 47 Screw M4x12 3 48 Belt Wheel 1 49 Nut M8 1 50 Belt 1 51 Bearing 1 52 Shaft Gear 1 53 Needle Bearing 1 54 Label 1 55 Screw M5x8 1 56 Adjusting Knob 1 57 Washer 1 58 Upper Handle Cover 1 59 Lower Handle Cover 1 60 Screw 4 2x16 1 61 Screw 4 2x55 2 62 Adjusting Spring 1 63 Scr...

Page 14: ...SKU 97593 For technical questions please call 1 800 444 3353 Page 14 ASSEMBLY DIAGRAM CONTINUED ON NEXT PAGE ...

Page 15: ...SKU 97593 For technical questions please call 1 800 444 3353 Page 15 ASSEMBLY DIAGRAM ...

Page 16: ...ental or consequential damages so the above limitation of exclusion may not apply to you THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS To take advantage of this warranty the product or part must be returned to us with transportation charges prepaid Proof of purchase date and an explanation of the complaint must...

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