TM 9-4940-556-14&P
Install pressure wash tip in gun.
6.14.2.2
a.
Turn main power switch ON.
b.
Turn pump switch ON.
c.
d.
Set MODE switch to PRESSURE.
Close air baffle on blower.
e.
f.
Hold gun OPEN.
If burner does not ignite, turn burner
6.14.2.3 Turn burner switch ON.
switch OFF. Turn air switch adjusting screw clockwise 1/4 turn. Turn
burner switch ON.
6.14.2.4 Repeat 6.14.2.3 until burner ignites, then turn adjusting screw
clockwise an additional 1/4 turn.
6.14.3 Thermal control - (ref. drawing JP7223). Thermal control is
factory set for a maximum of 360F. DO NOT adjust this high stop.
Outlet temperature can be reduced by turning thermal control dial to a
lower setting, however, temperature will swing lOF. from the selected
(lower) temperature and un-satisfactory cleaning may result.
6.14.4 Wiring (ref. to drawing JP7200, JP7201, JP7201-A and JP7203-B).
Wire #16 AWG-(26 strands/#30) 600 volt, 60C vinyl insulation-
(Jenny JD3871 Ref. P/N)
6.14.4.1 To repair wiring, be certain to work only when the unit has
been disconnected from all electrical power.
6.14.4.2 Always replace wires with those of equal or greater and
dielectric strength.
6.14.4.3 Never splice wires, always replace.
6.14.4.4 When replacing wires, be certain they are protected against
mechanical damage and abrasion.
6.14.5 For detailed description of the operation and inter relation
of electrical components (ref. to section 3.8 and 5.4.1).
6.14.6
WARNING - HIGH VOLTAGE
These procedures require the electrical power to be disconnected -
and performed by personnel trained to make high voltage electrical
repairs.
6.14.6.1 Disconnect Electrical Power. Also turn circuit breaker
S-1 to off position Ref. Dwg. SK-8-85).
6. 14.6.2 Open the cover of the Switch Panel. Locate cable "J"
and the black and white wire of the cable and disconnect from
Terminal No. 1 and No. 2.
6.14.6.3 Disconnect the high voltage cable "C" at the bottom of
the Burner Assembly (Ref. Dwg. JP7222).
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