Troy-Bilt TB-38 Lawn Mower User Manual


 
Throttle / Choke Control
The throttle control lever is located on the left side
of the tractor’s dash panel, see Figure 4-1. This lever
controls the speed of the engine, as well as the
choke when it is pushed all the way forward. When
set in a given position, the throttle will maintain a
uniform engine speed.
IMPORTANT: When operating the tractor with the
cutting deck engaged, be certain that the throttle
lever is always in the FAST (rabbit) position.
Moving the throttle lever all the way forward
activates the engine’s choke control. Activating
the choke control closes the choke plate on the
carburetor and aids in starting the engine.
Refer to Starting The Engine in the Operation
section of this manual for detailed starting
instructions.
Ignition Switch
The ignition switch is activated to start the engine.
Insert key into the ignition switch and turn clockwise to the
START position. Release the key into the ON position once engine
has fired. See Figure 4-2.
WARNING! Never leave a running machine
unattended. Always disengage PTO, move shift lever
into neutral position, set parking brake, stop engine
and remove key to prevent unintended starting.
IMPORTANT: Prior to operating the tractor, refer to both Safety
Interlock Switches and Starting The Engine in the Operation section
of this manual for detailed instructions regarding the Ignition Switch
Module.
On/Lights
Start
Figure 4-2
Clutch-Brake Pedal
The clutch-brake pedal is located on the left side of the lawn
tractor, along the running board. Depress the clutch-brake pedal
part way down when slowing the tractor by changing speeds
(Refer to Speed Control Lever). Depress the pedal all the way down
to engage the disc brake and bring the tractor to a complete stop.
NOTE: The clutch-brake pedal must be depressed to start the
engine. Refer to Safety Interlock Switches in the Operation
section of this manual.
Shift Lever
The shift lever is located on the left side of the fender and has
three positions, FORWARD, NEUTRAL and REVERSE. The brake
pedal must be depressed and the tractor must not be in motion
when moving the shift lever. See Figure 4-3.
IMPORTANT: Never force the shift lever. Doing so may result in
serious damage to the tractor’s transmission.
Figure 4-3
Speed Control Lever
The speed control lever, located on the lower left
side of the tractor’s dash console, allows you to
regulate the ground speed of the lawn tractor.
To use, depress the clutch-brake pedal and move
the lever out of the parking brake notch and
forward to increase the tractor’s ground speed.
When a desired speed has been reached, release
the lever into an appropriate notch to maintain
that speed.
To slow the tractor’s ground speed, depress the
clutch-brake pedal and move the speed control
lever rearward and release it into a notch.
13Section 4 — controlS & FeatureS