Specifications

OPERATION
550 Gas/LPG 330650 (2--05)
14
PIVOT LOCK PI N
The pivot lock pin is provided to lock the pivot joint
between the front and rear machine sections. The
pin is hung on the front section of the machine
adjacent to the machine pivot.
To lock the sections, turn the machine so the pivot
lock holes line up, then insert the pin in the lined
up holes. The pin will prevent the machine from
pivoting and creating a pinch area.
W ARNING: Crush Hazard Between Front
And Rear Halves Of Machine. Engage
Pivot Lock.
B
C
A
00251
PIVOT LOCK PIN IN USE
A. Machine Trailer Section
B. Machine T ractor Section
C. Pivot Lock Pin
PARKING BRAKE LEVER
The parking brake lever controls the brakes on
the two front wheels. To set the parking brake pull
the brake handle up. To release the parking brake
push the brake handle down. Always set the
parking brake before leaving the machine
unattended and before working on the machine.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, Set Parking Brake, Turn Off
Machine And Remove Key.
AMMETER (For machines below serial
number 007006)
The ammeter registers the charging current which
is being passed to the battery by the alternator. It
also registers battery discharge used by the
machine when the alternator is not charging.
CHARGING SYSTEM LIGHT (For machines
serial number 007006 and above)
The charging system light comes on when the
existing voltage potential of the battery is not
within normal range (10 to 14 Volts). Stop
operating the machine. Locate the problem and
have it corrected.
SQUEEGEE POSITION LAMP (For machines
below serial number 007006)
The squeegee position lamp lights when the
squeegee is either fully raised or lowered. This
can be helpful to the operator when the squeegee
is not visible.
CHECK ENGINE L IGHT (For machines serial
number 007006 and above)
The check engine light comes on if the engine
control system detects a fault during machine
operation.
If the check engine light comes on while operating
the machine, contact a TENNANT service
representative.
IGNITION SWITCH
The key-operated ignition switch has three
positions. Those positions are “off,” “run,” and
“start.” To operate any electrical option without
operating the engine, turn the switch to the “run”
position.
FOR SAFETY: Before Starting Machine,
Make Sure All Safety Devices Are In
Place And Operate Properly.
To start the engine, turn the key to the “start”
position. Do not engage the starter for more than
ten seconds at a time, or after the engine has
started, as the starter may be damaged. To stop
the engine, turn the key to the “off” position.
NOTE: When restarting GM engines, you must
wait 15--20 seconds before the starter motor will
engage again.
CAUTION: LPG engine will run for a
few seconds after key is turned off.
Apply parking brake before leaving
machine.
NOTE: To protect the GM engine’s emission
components on the LPG powered machines serial
number 006409 and above, the engine will
continue to operate for a few seconds after the
ignition switch is turned off.
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