Poulan Pro PB20H42LT LAWN TRACTOR - Manual (Page 11)

11
Fig. 10
TO ADJUST MOWER CUT TING HEIGHT
(See Fig. 10)
The po si tion of the at tach ment lift le ver (A) de ter mines the
cut ting height.
• Put attachment lift lever in desired cutting height slot.
The cutting height range is ap prox i mate ly 1" to 4". The
heights are measured from the ground to the blade tip with
the engine not running. These heights are approximate
and may vary depending upon soil conditions, height of
grass and types of grass being mowed.
• The average lawn should be cut to approximately
2-1/2" during the cool season and to over 3" during
hot months. For healthier and better looking lawns,
mow often and after moderate growth.
• For best cutting performance, grass over 6" in height
should be mowed twice. Make the first cut relatively
high; the second to de sired height.
TO OPERATE MOWER
Your tractor is equipped with an operator presence sensing
switch. Any attempt by the operator to leave the seat with
the engine running and the attachment clutch engaged will
shut off the engine. You must remain fully and centrally
positioned in the seat to prevent the engine from hesitat-
ing or cutting off when operating your equipment on rough,
rolling terrain or hills.
• Select desired height of cut with attachment lift lever.
• Start mower blades by engaging at tach ment clutch.
Fig. 13
CAUTION: Do not operate the mower without
either the en tire grass catcher, on mowers
so equipped, or the deflector shield (S) in
place (See Fig. 13).
TO STOP MOWER BLADES -
• Disengage at tach ment clutch con trol.
A
ROS "ON"
POSITION
ENGINE "ON" POSITION
(NORMAL OPERATING)
02828
TO ADJUST GAUGE WHEELS (See Fig. 11)
Gauge wheels are properly adjusted when they are slightly
off the ground when mower is at the desired cutting height in
operating position. Gauge wheels then keep the deck in prop-
er position to help prevent scalping in most terrain conditions.
NOTE:Adjust gauge wheels with tractor on a flat level surface.
• Adjust mower to desired cutting height (See “TO AD-
JUST MOWER CUT TING HEIGHT” in the Operation
sec tion of this manual).
• With mower in desired height of cut po si tion, gauge wheels
should be assembled so they are slightly off the ground.
In stall gauge wheel in appropriate hole with shoulder
bolt, washer, washer, and lock nut and tighten se cure ly.
• Repeat for opposite side installing gauge wheel in same
adjustment hole.
S
Fig. 11
Fig. 12
REVERSE OPERATION SYSTEM (ROS)
Your tractor is equipped with a Reverse Operation System
(ROS). Any attempt by the operator to travel in the reverse
direction with the attachment clutch engaged will shut off the
engine unless ignition key is placed in the ROS "ON" position.
OPERATION
WARNING: Backing up with the attachment clutch en-
gaged while mowing is strongly discouraged. Turning the
ROS "ON", to allow reverse operation with the attachment
clutch engaged, should only be done when the operator
decides it is necessary to reposition the machine with the
attachment engaged. Do not mow in reverse unless
absolutely necessary.
USING THE REVERSE OPERATION SYSTEM
(See Fig. 12)
Only use if you are certain no children or other bystanders
will enter the mowing area.
• Move motion control lever to neutral position.
•
With engine running, turn ignition key counterclockwise
to ROS "ON" position.
• Look down and behind before and while backing.
• Slowly move motion control lever to reverse (R) po si-
tion to start movement.
• When use of the ROS is no longer needed, turn the
ignition key clockwise to engine "ON" position.