Elliott Roto-Jet 0420, Operating And Maintenance Instructions Manual

0420 Roto-Jet  

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MAINTENANCE

Keep your Roto-JetTM in good repair by adopting a regular maintenance program.  Before each 
use, examine the general condition of your machine.  Inspect connections, foot switch, air line 
and water hose for damage.  Check for loose screws, misalignment, binding of moving parts, 
improper mounting, split flexshaft casing, broken parts or any other condition that may affect its 
safe operation.  If abnormal noise or vibration occurs, turn the machine off immediately and have 
the problem corrected before further use.  For more information see “Trouble Shooting” section.  DO 
NOT USE A DAMAGED MACHINE.  Tag damaged machines “DO NOT USE” until repaired.

Inspect the in-line filter-lubricator before each machine use.  Be sure that the filter-lubricator is filled 
with the proper lubricant and the drip rate is set correctly.  Recommended lubricant is detergent SAE 
#10 automotive engine oil, and the lubricator should be set for one drop for every 50 to 75 C.F.M. 
(1,416 – 1,982 liters per minute) consumed.

Should the motor become sluggish or inefficient it may become necessary to “flush” the motor with 
a cleaning agent to remove the contaminants.

To flush the motor:

•  Move the throttle valve to the off position, disconnect the air supply, water supply and the 

flexshaft from the machine.

•  Take the cover off the machine by removing the sheet metal screws that secure it to the base.
•  Disconnect the air line and muffler from the air motor and add several teaspoons of solvent 

directly into the motor intake and exhaust ports.

•  Rotate the shaft of the motor by hand, in both directions, for a few minutes.
•  In a well ventilated area, reconnect the air supply line to the motor and to the machine, de-

press the foot switch, then slowly apply pressure using the throttle valve.

•  Continue to run the motor until no trace of solvent is seen in the exhaust air.
•  Move the throttle valve back to the off position and remove the air supply to the machine and 

to the motor.

•  Lubricate the motor with a squirt of oil in the intake and exhaust chamber.
•  Rotate the motor by hand, in both directions, and replace the air supply line and exhaust muf-

fler to the motor.

WARNING

To reduce the risk of injury, always disconnect the air supply to the machine 
before performing any maintenance.  Contact Elliott for all repairs.