Scotts S1642 - Manual (Page 12)

Operating Machine - 8
OPERATING MACHINE
1. Gear units - Move transmission shift lever (A) to N
(NEUTRAL) position.
Automatic units - If equipped with shift lever, move shift
lever to N (NEUTRAL) position. If equipped with foot pedal
controls, do not depress either pedal.
2. Lock the park brake (B).
3. Pull PTO lever (C) all the way back to the rearward
(OFF) position.
4. To start the engine:
• S1642 and S1742 - Place the throttle lever (D) in the
CHOKE (
k
) position. As the engine begins to run
smoothly, lower the throttle lever in small steps, allowing
the engine to accept changes in speed and load, until
the throttle lever is in the FAST (
r
) position.
• S2046 - Place the throttle lever (D) the FAST (
r
)
position and pull out choke knob (E). As the engine
begins to run smoothly, push the choke knob in until fully
seated.
5. Turn ignition key (F) to start position to crank the engine.
Crank engine until it starts, but no longer than 5 seconds.
6. If engine starts, release key to run position. If engine
does not start, release key to run position and wait 10
seconds before cranking the engine again.
7. Let engine run for a couple of minutes to warm-up
before operating tractor.
Using Throttle Control
Always operate the engine at FULL (
r
)THROTTLE.
Operating the engine at less that full throttle reduces the
battery charging rate and reduces fan cooling efficiency of
the engine.
Full throttle offers the best bagging and mower
performance.
Cold Weather Starting Tips
Always use fresh winter grade fuel.
Do not crank engine for more than 30 seconds in any single
attempt.
During first minute of operation engine may be operated in
partial choke to allow smoother running. As engine warms
slowly reduce engine speed to the full throttle detent
position.
On Automatic Transmission
Allow engine to run for a few minutes before using tractor to
allow automatic transmission oil to warm. Sluggish
transmission response in cold weather indicates that oil has
not warmed to allow optimum performance.
Warming and Idling Engine
WARMING ENGINE:
• Run Engine at half speed for 2–3 minutes.
IDLING ENGINE:
• Engine is air-cooled and needs a large volume of air to
keep cool. Keep air intake screen (A) on top of engine
clean.
• Avoid unnecessary engine idling.
A
F
D
B
C
E
M96455
A