User's Manual

12 309962
Service
Inspection Frequency
Dispense Valve
Inspect dispense valve at every use for leakage or
other visible damage.
Heater
Every two weeks, check heater for proper resistance.
Resistance should be approximately 123–150 ohms
(+58/–29) cold for the 120 volt valves. Replace heater
if necessary.
Also inspect heater when performing regular mainte-
nance procedures.
Sensor
Every two weeks, check sensor resistance. Resistance
should be 108 ohms at 21° C (70° F). Replace sensor
if necessary.
Also inspect sensor when performing regular mainte-
nance procedures.
Adjusting the Needle Assembly
The trigger travel and corresponding valve opening are
factory set. To adjust this setting, follow the procedure
below.
WARNING
SKIN INJECTION HAZARD
To reduce the risk of a serious injury, includ-
ing fluid injection, follow the Pressure
Relief Procedure on page 7 whenever you
are instructed to relieve the pressure.
NOTE: Items in ( ) refer to items in the PARTS list
(pages 14-17).
1. Relieve the pressure in the system.
2. Disconnect the gun from the hose.
3. Using a 1/2 in. and 11/32 in. wrench, loosen hex
nut (15m).
4. Remove nozzle (19), cap (5) and shield (4).
5. Trigger gun and, using a screwdriver in the slot of
the needle, turn the needle clockwise several
turns.
6. Release the trigger, turn the needle counterclock-
wise until it contacts the seat
7. Trigger the gun, and turn the needle one additional
turn counterclockwise.
8. Tighten the hex nuts (15m) to set the adjustment.
9. Reassemble shield (4), cap (5), and nozzle (19).