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4-Inch Angle Grinder Operator's Manual 9
Troubleshooting
Specifications
Loss of Power
1. Low air pressure
2. Improper lubrication or dirt
build up
3. Worn motor parts, or other
problems
Symptom
Problem
Solution
Wheel capacity -------------------------------- 4" Type 27
Wheel size -------------------------------------- 4" X 1/4" X 5/8"
Spindle size -------------------------------------3/8"- 24
Free speed --------------------------------------11,000 RPM
Power output -----------------------------------3/4 HP
Weight--------------------------------------------4 lbs.
Length --------------------------------------------9"
Average air consumption -------------------5 CFM
Recommended hose size -------------------3/8" I.D.
Air inlet -------------------------------------------1/4" NPT
Maximum air pressure -----------------------90 PSI
1. Check air supply. For rated
performance, 90 PSI air
pressure is required at the
tool, with tool operating
2. Check for wet or dirty air.
Wet air tends to wash
lubricant away. Dirt or
foreign matter will impede
the action of the motor. If
dirt or water has entered the
tool, flush with John Deere
AT-4003.
3. Contact your customer
service.