Contractor DBS-25RC, User Manual

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13
ENGLISH
CONTRACOR
®
DBS-25/50RC Art. 10510/10515
6.1. RC system troubleshooting.
The following list of checks can be used for determining problems in case the RC
system does not function properly:
1. Study the instructions in this manual.
2. Visually check all air hoses and connections to ensure that there are no air leaks.
3. Ensure that the safety and drain valve are closed.
4. Check the RC handle for air leaks:
— when the key is not depressed, the air should come only out of the body vent.
— when the key is depressed no air should come out of the handle.
Problem Cause Solution
Air does not come out
of the vent in the RC
handle body.
Twinline hose is clogged or
pinched.
Disconnect the Twinline hose
and ensure that it is not
clogged.
Control valve RCV-0
does not open.
Safety drain valve is still
open.
Close the safety drain valve.
Air feed to abrasive
blasting machine is not
sufficient.
Dismantle the control valve, all
parts should rotate freely.
RC control valve RCV-0
does not close.
RC handle channels are
clogged.
Remove the key and clean it.
Incorrect connection of
TWINLINE hose.
Check connections and change
them if they are incorrect.
Control valve failure. Disassemble the valve and
ensure that it functions
properly.