TLR-50 PNEUMATIC REMOTE CONTROLS
Page 7
5.2.2
Remove the cap by unscrewing the four cap
screws.
6.1.3
Check for air leaks in control hose, fittings, and
control handle. (RLX Control Handle is covered in
Owners Manual No. 10574)
5.2.3
Remove the diaphragm and inspect it for
damage. Replace as necessary.
6.1.4
Check for air escaping from the opening under
the control handle. If no air is escaping, the orifice on the
inlet valve (Figure 5, item 9) or the line from the orifice to
the control handle is blocked and must be cleared.
5.2.4
Inspect the machined seat in the body. If worn,
replace the body.
5.2.5
Reassemble in reverse order.
6.1.5
Open the safety petcock and depress the control
handle. Air should come from the petcock. If it doesn't,
check the following:
5.3 Control
handle
•
The opening on the control handle is not being
sealed off.
5.3.1
A separate manual is provided for the control
handle. Refer to the manual to service the control
handle.
•
The control handle leaks air.
•
The line from the control handle to the upper fitting
on the inlet valve is blocked.
•
If a diaphragm outlet valve is used, check the
diaphragm for a rupture.
If air does rush out, the inlet valve is not functioning.
Turn off the air supply and service it per Section 5.1,
disassemble the valve, clean and lubricate it, and
replace all worn or damaged parts.
6.0 TROUBLESHOOTING
NOTE: This section applies to the remote control
system only. See the appropriate manual for
troubleshooting the blast machine, control handle,
and accessories.
6.1.6
Close the safety petcock, and press the control
handle lever. Check that no air escapes through the vent
hole on the cylinder body of the inlet valve body. Air
escaping from this vent indicates a worn piston or O-ring
in the inlet valve. See Section 5.1.
WARNING
To avoid serious injury or death, observe the
following when troubleshooting the remote
controls:
6.1.7
With the compressor off and the blast machine
depressurized, check the nozzle for blockage.
•
Turn off the air, and lock out and tag out the
air supply.
6.2 Outlet valve won't exhaust or exhausts too
slowly.
•
When checking the controls requires air,
always enlist the aid of another person to
operate the control handle while holding the
nozzle securely and pointing it in a safe
direction.
6.2.1
Make sure that the lower fitting on inlet valve
(Figure 5, item 9) has not been replaced with a fitting
with a full flow orifice. The orifice on the 1/8" NPT end of
the fitting must be 1/16" diameter.
•
Never strap down the remote control handle
lever in the operating position.
6.2.3
Make sure the inlet valve closes. If it does not
seal-off incoming air, the valve requires service.
6.1
No blast action when the control handle is
depressed
6.3
Pop-up valve seats for a short time and then
falls, or it
"
hovers
"
but fails to seat.
6.1.1
Make sure that the air supply is on and all
supply valves are open.
6.3.1
Insufficient air supply. Check the compressor
output, air supply hose and isolation valves.
6.1.2
Make sure the safety petcock is closed.
6.3.2
Outlet valve diaphragm may be worn or
ruptured. Inspect it and replace worn parts.
