Creative Engineering ROCK-A-FIRE EXPLOSION - Page 44

Problems and Repair
Step by Step Description Cont.:
2. If the Solenoid goes bad, air does not switch
from Port B to Port A, when electrically
activated. And yet air does switch with the
manual override button. Your problem is
electrical, refer to Part 4, Electronics
Trouble Shooting. If the valve will not switch
when the Manual Over-ride button is depressed,
and yet you are sure air flow is supplied, your
problem is probably a sticking valve refer to
step 1.
a. To replace the Solenoid assembly unscrew
the 2 screws (B) and remove the old
solenoid from the valve.
b. When replacing with the new solenoid make
sure the 0-Ring type gasket (C) is placed
in properly. (Wipe the gasket with grease
before assembly)
3. Air leaks through the top of the air chamber:
Remove the retaining ring (D) and replace the
0-Ring (E) in the cap, if this does not work,
go to the step 1, to repair or replace the
parts in question.
4. Blow By: When you pull the lines from the valve
and depress the manual override button air
should come out Port A with no air coming out
Port B. Release the manual over-ride button.
Air should come out Port B with no air coming
out Port A. If air leaks out of the port that
should be closed, you have what is known as
"Blow By". To repair a "Blow By" problem see
step 1.
Step I. The Valve Bank:
1. If the entire valve bank is not operating,
check inlet pressure. If pressure is present,
refer to Part 4, Electronics Trouble Shooting.
2. External leaks between the valves: Always
attempt to tighten out any external leaks.
There are 2 Allen Head screws located at one
end of the valve bank, unscrew the 2 valve
bank brackets from the wooden support, then
tighten the 2 Allen Head Screws.
3-007