Poulan Pro 420408, Operator'S Manual

25

TO REPLACE HEADLIGHT BULB

• Raise 

hood.

•  Pull bulb holder out of the hole in the backside of the 

grill.

•  Replace bulb in holder and push bulb holder securely 

back into the hole in the backside of the grill.

• Close 

hood.

INTERLOCKS AND RELAYS

Loose or damaged wiring may cause your tractor to run 

poorly, stop running, or prevent it from starting.
• Check 

wiring.

TO REMOVE HOOD AND GRILL ASSEMBLY 

(See Fig. 35)

• Raise 

hood.

•  Unsnap headlight wire connector.
• 

Stand in front of tractor.  Grasp hood at sides, tilt toward 

engine and lift off of tractor.

•  To replace, reverse above procedure.

03075

HEADLIGHT

WIRE

CONNECTOR

HOOD

ENGINE

TO AD JUST THROTTLE CON TROL CABLE 

The throttle control has been preset at the factory and 

ad just ment should not be necessary. If adjustment is nec-

 es sary, see engine manual.

TO AD JUST CHOKE CON TROL 

The choke control has been preset at the factory and ad-

 just ment should not be necessary. If adjustment is neces-

sary, see engine manual.

TO ADJUST CARBURETOR  

Your carburetor is not adjustable. If your engine does not 

operate properly due to suspected carburetor problems, 

take your tractor to an authorized service center for repair 

and/or adjustment.

FIG. 35

SERVICE AND ADJUSTMENTS

TO REPLACE FUSE

Replace with 20 amp automotive-type plug-in fuse.  The 

fuse holder is located behind the dash.

Fig. 34

02603

SEAT PAN

NUT

POSITIVE 

(RED) 

CABLE

NEGATIVE 

(BLACK) 

CABLE

BOLT

TERMINAL 

COVER

REPLACING BATTERY (See Fig. 34)

WARNING:  Do not short battery 

ter mi nals by allowing a wrench or any 

other object to contact both terminals 

at the same time. Before connecting 

battery, remove metal bracelets, 

wristwatch bands, rings, etc. Positive 

terminal must be connected first to 

prevent sparking from ac ci den tal 

grounding.

•  Lift seat pan to raised position.
• 

Disconnect BLACK battery cable first then RED battery 

cable and carefully remove battery from tractor.

•  Install new battery with terminals in same position as 

old battery.

• 

First connect RED battery cable to positive (+) terminal 

with bolt and nut as shown. Tighten securely. Slide 

terminal cover over terminal.

•  Connect BLACK grounding cable to negative (-) ter-

 mi nal with remaining bolt and nut. Tighten se cure ly.

•  Lower seat pan.

TRANSMISSION 

REMOVAL/RE PLACE MENT

Should your transmission require removal for service or 

re place ment, it should be purged after reinstallation and 

before operating the tractor.  See “PURGE TRANS MIS SION” 

in the Operation section of this manual.