Service and adjustments – Poulan Pro PB23H48YT LAWN TRACTOR User Manual

Page 21

Fig. 32

TO REPLACE MOWER BLADE DRIVE BELT

(See Fig. 32)

MOWER DRIVE BELT REMOVAL

•

Park tractor on a level surface. En gage parking brake.

• Lower attachment lift lever to its lowest position.
• Disengage belt tension rod (K) from lock bracket (L).

CAUTION: Belt tension rod is spring

loaded. Have a firm grip on rod and

release slowly.

• Remove screws (P) from mandrel covers (Q) and

remove covers.

•

Remove any dirt or grass clippings which may have accu-

mulated around mandrels and entire upper deck surface.

•

Remove belt from electric clutch pulley (M), both man-

drel pulleys (R) and all idler pulleys (V).

MOWER DRIVE BELT INSTALLATION

• Install belt around all mandrel pulleys (R) and around

idler pulleys (V) as shown.

• Install belt onto electric clutch pulley (M).
IMPORTANT: Check belt for proper routing in all mower

pulley grooves.
• Reassemble mandrel covers (Q). Securely tighten all

screws.

• Engage belt tension rod (K) on locking bracket (L).

CAUTION: Belt tension rod is spring

loaded. Have a tight grip on rod and

engage slowly.

• Raise attachment lift lever to highest position.

TO CHECK BRAKE

If tractor requires more than five (5) feet to stop at highest

speed in high est gear on a level, dry concrete or paved

surface, then brake must be serviced.
You may also check brake by:
•

Park tractor on a level, dry concrete or paved surface,

depress brake pedal all the way down and engage

parking brake.

SERVICE AND ADJUSTMENTS

• Disengage transmission by placing freewheel control

in “transmission disengaged” position. Pull freewheel

control out and into the slot and release so it is held in

the disengaged position.

The rear wheels must lock and skid when you try to manu-

ally push the tractor forward. If the rear wheels rotate,

then the brake needs to be serviced. Contact a qualified

service center.

TO LEVEL MOWER

Make sure tires are properly inflated to the PSI shown on

tires. If tires are over or under inflated, it may affect the

appearance of your lawn and lead you to think the mower

is not adjusted properly.
VISUAL SIDE-TO-SIDE ADJUSTMENT (See Fig. 33)
•

With all tires properly inflated and if your lawn appears

unevenly cut, determine which side of mower is cutting

lower.

NOTE: As desired, you can raise the low side of mower

or lower the high side.
• Go to side of mower you wish to adjust.
• With a 3/4" or adjustable wrench, turn lift link adjust-

ment nut (A) to the left to lower the mower, or, to the

right to raise the mower.

NOTE: Each full turn of adjustment nut will change mower

height about 3/16".
• Test your adjustment by mowing some uncut grass

and visually checking the appearance. Readjust, if

necessary, until you are satisfied with the results.

Turn nut left

to lower mower

Turn nut right

to raise mower

Fig. 33

PRECISION SIDE-TO-SIDE ADJUSTMENT (See Fig. 34)
• With all tires properly inflated, park tractor on level

ground or driveway.

CAUTION: Blades are sharp. Protect

your hands with gloves and/or wrap

blade with heavy cloth.

• Raise mower to its highest position.
• At both sides of mower, position blade at side and

measure the distance (A) from bottom edge of blade

to the ground. The distance should be the same on

both sides.