Specifications

OPERATION
550 Gas/LPG 330650 (2--06)
16
CIRCUIT BREAKERS (For machines serial
number 007006 and above)
The circuit breakers are resetable electrical circuit
protection devices. Their design stops the flow of
current in the event of a circuit overload. Once a
circuit breaker is tripped, it must be reset
manually. Press the reset button after the breaker
has cooled down.
If the overload that caused the circuit breaker to
trip is still there, the circuit breaker will continue to
stop current flow until the problem is corrected.
The chart lists the circuit breakers and the
electrical components they protect.
Circuit
Breaker
Rating Circuit Protected
CB--1 15 A Gauges
CB--2 20 A Horn/Rotating, Hazard
Lights/Turn Signal
CB--3 15 A Operating Lights
CB--4 15 A Squeegee
CB--5 15 A SRS/Recovery Tank
Level Lamps
CB--6 15A SRS Solution Pump
ENGINE OIL PRESSURE GAUGE --
CONTINENTAL ENGINES
(For machines below serial number 006409)
The engine oil pressure gauge registers the
engine oil pressure. Normal engine oil pressure
ranges from 7 psi (50 kPa) at idle, to 35 psi (240
kPa) at full engine throttle. If the gauge registers
an oil pressure reading below 7 psi (50 kPa), stop
the engine immediately and determine the cause.
Failure to stop the engine will result in severe
engine damage.
ENGINE OIL PRESSURE GAUGE --
GM ENGINES (For machines serial number
006409 -- 007005)
The engine oil pressure gauge registers the
engine oil pressure. Normal engine oil pressure
ranges from 35 psi (240 kPa) at idle, to 40 psi
(280 kPa) at full engine throttle. If the gauge
registers an oil pressure reading below 30 psi
(207 kPa), stop the engine immediately and
determine the cause. Failure to stop the engine
will result in severe engine damage.
ENGINE OIL PRESSURE LIGHT (For machines
serial number 007006 and above)
The engine oil pressure light comes on when the
engine oil pressure falls below 5 psi (40 kPa). GM
engines will automatically stop if the oil pressure
gets this low. The GM engine can be restarted
and operated for 30 seconds after this happens.
Locate the problem and have it corrected.
ENGINE COOLANT TEMPERATURE GAUGE
The engine coolant temperature gauge registers
the engine coolant temperature. Normal engine
coolant temperatures range up to 200_ F
(93_ C). Temperatures above this level indicate
an over-heating engine. Continental engines, stop
operating the machine if if the water temperature
gets this high. GM engines will automatically stop
when the temperature gets too high. Over-heating
may occur due to a low coolant level, a clogged
radiator, a loose fan belt, a defective thermostat,
or other engine malfunctions. Engine overheating
will always cause a coolant loss. If coolant loss
does not occur, check for malfunction of the
temperature sending unit.
SQUEEGEE SWITCH
The squeegee switch, in conjunction with a
hydraulic flow sensing device, and the scrub
brush lever, controls the position of the rear
squeegee.
To raise the squeegee, flip the switch toggle
forward into the “Squeegee Up” position. This
position cannot be overridden by the hydraulic
flow sensing device.
To lower the squeegee, flip the switch toggle back
into the “Down” position. The squeegee will lower
when the machine starts moving in the forward
direction. When traveling in the reverse direction,
the hydraulic flow sensing device overrides the
squeegee switch and raises the rear squeegee.
This prevents the rear squeegees from being
damaged when traveling in reverse. The
squeegee switch should always be in the “Down”
position when scrubbing.
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