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6.17 Shot valves and actuators
The shot valves and actuators should be checked for correct performance
regularly.
On the electrobox inside the truck there is a “TEST SWITCH” , when this switch
is actuated it is possible to operate the actuators and shot valves without
blasting.
-Make sure all abrasive is removed from the blast head.
-Flip the “TEST SWITCH” on the electrobox.
-Open the separator cover of the blasthead.
-Remove the separator trays from the side.
-Check the shot valves for dirt and signs of wear.
-The operator in the cabin can operate the shot valves, while a second person
checks the valves and actuators on the blast head.
-Shot valve 1 is on the driver’s side, shot valve 2 is on the passenger’s side.
Make sure the “TEST SWITCH” is switched back before normal work is continued.
TEST SWITCH
