Harbor Freight Tools 93889 - Manual (Page 12)

SKU 93889 For technical questions, please call 1-800-444-3353 PAGE 12
8. Point the Sandblasting Gun at the workpiece so that the media will strike the
surface of the workpiece at about a 45 degree angle.
9. Squeeze the Control Lever (34) of the Sandblasting Gun to release the media.
NOTE: The flow rate of the media may be irregular when the Sandblasting Gun
is first started. Provided the media is dry, the flow rate will become normal in
approximately one minute. (See Figure G.)
10. Adjust the Media Metering Valve (18) to increase or decrease the media flow
rate. (See Figure G.)
11. Adjust the Air Input Valve (14) to regulate the total air flow and pressure at the
Sandblasting Gun. (See Figure G.)
12. Move the Sandblasting Gun in a circular or right to left motion until you have
achieved the desired appearance (finish) on the workpiece.
13. Periodically, check the Water Trap (12) for excessive water build-up. If necessary,
hold a container beneath the Water Trap and press the button located at
the bottom of the Water Trap to drain the water. (See Figure G.)
14. When the sandblasting job is completed, release pressure on the Control Lever
(34) of the Sandblasting Gun. Turn off the air compressor. Turn the Media
Metering Valve (18) and Air Input Valve (14) to the “OFF” position.
(See Figure G.)
15. Use the Safety Valve (6) to release any remaining air pressure in the Tank
Assembly (3). Check to make sure the Pressure Gauge reads “0” PSI.
(See Figure G.)
16. Squeeze the Control Lever (34) of the Sandblasting Gun to release any remaining
air pressure and media. (See Figure G.)
17. Disconnect the compressor air hose from the Quick Connector on the Pressure
Blasting System. (See Figure F.)
18. If necessary, empty the Tank Assembly (3) of any remaining media. Then, store
the Pressure Blasting System in a clean, dry, safe location out of reach of children
and other unauthorized people.
INSPECTION, MAINTENANCE, AND CLEANING
1. WARNING! Prior to performing any inspection, maintenance, or cleaning of
the Pressure Blasting System, turn off the air compressor. Turn the Media