Maintenance
5-30
Maintenance
Whizard
®
AirMax MACH 3 Operating Instructions and
Parts List
Manual No. 188000
September 1, 2009
Inspection and Maintenance of TRIMVAC
®
AMX Handpiece
(Continued)
Pinion Gear
Check for worn or chipped teeth. Worn out teeth are indicated by rounded off or pointed
tops on the teeth.
Bearing
Install a new pinion and move the pinion side to side.
If the pinion feels loose in the bearing, the bearing should be replaced.
The bearing should be replaced after 500 hours of use, or if it is worn, whichever comes
first.
Cover Plate
Look for signs of corrosion or wear on the cover.
Pay special attention to the area covering the gear teeth.
If the edge of the cover is worn, exposing the pinion and blade teeth, the cover should be
replaced.
Look for signs of wear on the pinion cover surface. If excessive wear signs are present,
check the seal on the power unit for leakage.
Hose Adapter
Inspect the hose adapter for chips or cracks and replace if damaged.
Frame
Inspect the frame surface where the housing is attached.
Look for corrosion and any nicks or burrs that may prevent proper seating of the housing.
Inspect the housing locating key for damage.
Inspect the cover retaining screws and replace if bent or damaged.
Drive Adapter Assembly
Inspect the drive adapter assembly for the following. Replace the drive adapter assembly
if damaged.
Inspect the square end of the driver for rounded corners.
Inspect the retaining ring for damage.
Press the retaining ring back into the groove if the retaining ring has moved.
