Troubleshooting Guide - Senco TURBO HOT DOG DAC-7128-2 Manual

PERFORMING REPAIRS MAY EXPOSE VOLTAGE SOURCES, MOVING PARTS, OR COM-
PRESSED AIR SOURCES. PERSONAL INJURY MAY OCCUR. PRIOR TO ATTEMPTING ANY
REPAIRS, UNPLUG THE POWER CORD AND BLEED OFF TANK AIR PRESSURE.
PROBLEM
Excessive tank pressure -
safety valve pops off.
Air leaks at fittings.
Air leaks at check valve.
Air leaks at pressure switch
release valve.
Air leaks in air tank.
Regulator knob - continu-
ous air leak. Regulator will
not shut off at air outlet.
Pressure reading on the
regulated pressure gauge
drops when an accessory
is used.

TROUBLESHOOTING GUIDE

CAUSE
Pressure switch does not shut off
motor when compressor reaches
"cut-out" pressure.
Pressure switch "cut-out" too high.
Tube fittings are not tight enough.
Defective or dirty check valve.
Defective pressure switch release
valve.
Defective check valve.
Defective air tank.
Dirty or damaged regulator internal
parts.
It is normal for "some" pressure
drop to occur.
11-ENG
CORRECTION
Move the pressure switch lever to the "OFF"
position. If the outfit doesn't shut off, and the
electrical contacts are welded together, replace
the pressure switch.
If the contacts are good, check to see if the pin
in the bottom of the pressure release valve is
stuck. If it does not move freely, replace the
valve.
Return the outfit to a Service Center to check and
adjust, or replace switch.
Tighten fittings where air can be heard escaping.
Check fittings with soapy water solution. DO
NOT OVER-TIGHTEN.
A defective check valve results in a constant air
leak at the pressure release valve when there is
pressure in the tank and the compressor is shut
off. Remove and clean or replace check valve.
DO NOT OVER-TIGHTEN.
Remove and replace the release valve.
A defective CHECK valve results in a constant air
leak at the pressure release valve when there is
pressure in the tank and the compressor is shut
off. Remove and clean or replace check valve.
DO NOT OVER-TIGHTEN.
Air tank must be replaced. Do not repair the leak.
DO NOT DRILL INTO, WELD OR
OTHERWISE MODIFY AIR TANK
OR IT WILL WEAKEN.
Clean or replace regulator.
If there is an excessive amount of pressure drop
when the accessory is used, adjust the regulator
following the instructions in "Description of Op-
eration".
NOTE
Adjust the regulated pressure under flow
conditions (while accessory is being
used).
D22235