DIRECT SUPPORT AND GENERAL SUPPORT
Section I. REPAIR PARTS, SPECIAL TOOLS AND EQUIPMENT
5-1. Special Tools and Equipment
There are not special tools and equipment
required for the maintenance of the steam cleaner.
5-2. Repair Parts and Equipment
Repair parts and equipment are listed and
illustrated in the repair parts and special tools list
covering direct support and general support
maintenance for the steam cleaner in appendix C of
Before accomplishing any repairs to the steam
cleaner, shut unit down and allow to cool.
Disconnect power cord, failure to do so could
cause severe injury and possible death to
Section II. TROUBLESHOOTING
information for locating and correcting most of the
malfunctions which may develop in the steam
cleaner. Each malfunction for an individual
component, unit or system is followed by a list of
probable causes and corrective actions. Maintenance
causes for a malfunction and perform the corrective
actions in the order listed.
b. This manual cannot list in table 5-1 all the
malfunctions that may occur, nor all probable
causes and corrective actions. If a malfunction is
not listed or is not corrected by the listed corrective
actions, the maintenance supervisor shall be
Table 5-1. Troubleshooting
1. Pump control switch closed, motor
does not start.
a. 115V control circuit fuse blown.
a. Remove and inspect 6 amp fuse.
Determine cause of blown fuse (short
ductor). Repair fault and replace
b. Magnetic motor starter overload
switch X2 open.
button. Switch X2 should close and
determine cause of condition causing
overloading of motor before con-
tinuing operation (binding or ob-
struction in pumps).
c. Power supply to steam cleaner
c. Zero voltage at terminals L1 and L2
of magnetic motor starter. Check for
220V AC potential at the power
d. Excess pressure switch open.
d. Zero voltage between circuit 1 and 2
e. Defective stepdown transformer.
e. Low or zero voltage across the
transformer primary terminals H1
and H4 should be 220-240V AC.
Check terminals for tightness.