Northern Industrial Tools 1981202 INSPECTION, Maintenance and Cleaning, General Touble Shooting

NOTE:

ØIf the tool stalls while tightening, DO NOT raise the outlet pressure of the air compressor above 90 PSI.

ØWhen the nut has been tightened, remove the tool and socket. Do not over-tighten.

ØIf available, check the recommended torque specifications for the nut.

You should use a torque wrench to torque the nut after using the impact wrench.

INSPECTION, MAINTENANCE AND CLEANING

1.Always make sure the trigger is in its "OFF " position, and disconnect the tool from its compressed air supply before performing any inspection, adjustments, maintenance, or cleaning.

2.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 air hose, and any other condition that may affect its safe operation. If abnormal noise or vibration occurs, have the problem corrected before further use. Do not use damaged equipment.

3.Daily: With a clean cloth, remove all dirt, oil, and grease from the tool. If necessary, you may use a mild detergent. Do not use solvents, as damaged to the tool may occur. Do not immerse the tool in any liquids.

GENERAL TOUBLE SHOOTING

TROUBLES

ØTool does not run at a normal speed or at a variable speed. ØThe motor blocks.

ØAutomatic start when connected to compressed air. ØTorque reduces

ØAbnormal vibrating Easy hot rising at the housing.

CAUSES

ØAir supply is not enough (air pressure not in a required standard) ØSpeed controller/switch breaks down

ØRotor blades break or wear out ØDust gets into the motor

ØThrottle lever or starting trigger malfunctions ØAir leakage at the inlet or somewhere else ØBearing damages

ØCorrespondent O-rings wear out or out of position ØLack of lubricating

TROUBLE SHOOTING

ØCheck the air hose to see whether it is blocked or twisted for less air supply ØCheck the air compressor to gain the correct air pressure required ØReplace rotor blades

ØDisassemble the tool and clean the inner structure under proper instructions ØCheck and fix the throttle lever or starting trigger for accurate operation ØCheck the air leakage and fix it under proper instruction

ØReplace new bearing

ØReplace the damaged O-ring or put it back in correct position

ØOil/Lubricate the tool consistently until it gains the right speed and torque.

NOTE: For any other special troubles which cannot be settled down by the operator, please contact the selling agent from whom you purchased the tool.

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