To Stop Mower Blades - Craftsman 917.20407 Manual Del Usuario

TO ADJUST MOWER CUTTING HEIGHT
The position of the attachment lift lever (A)
determines the cutting height.
A
• Put attachment lift lever in desired cutting
height slot.
The cutting height range is approximately 1
to 4" (25,4 to 101,6 mm). 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 approxi-
mately 2-1/2" (63,5 mm) during the cool
season and to over 3" (76,2 mm) during
hot months. For healthier and better look-
ing lawns, mow often and after moderate
growth.
• For best cutting performance, grass over
6" (152,4 mm) in height should be mowed
twice. Make the first cut relatively high; the
second to desired height.
TO ADJUST GAUGE WHEELS
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 proper position to help prevent scalping
in most terrain conditions.
NOTE: Adjust gauge wheels with tractor on
a flat level surface.
1. Adjust mower to desired cutting height
(See "TO ADJUST MOWER CUTTING
HEIGHT" in this section of manual).
3/4"
2. With mower in desired height of cut posi-
tion, gauge wheels should be assembled
so they are slightly off the ground. Install
gauge wheel in appropriate hole. Tighten
securely.
3. Repeat for all, installing gauge wheel in
same adjustment hole.
TO OPERATE MOWER
Your tractor is equipped with an operator
presence sensing switch.
is running, any attempt by the operator to
leave the seat without first setting the park-
ing brake will shut off the engine. You must
remain fully and centrally positioned in the
seat to prevent the engine from hesitating or
cutting off when operating your equipment
on rough, rolling terrain or hills.
1. Select desired height of cut with attach-
ment lift lever.
2. Start mower blades by engaging attach-
ment clutch control.

TO STOP MOWER BLADES

Disengage attachment clutch control.
CAUTION: Do not operate the mower
without either the entire grass catcher, on
mowers so equipped, or the deflector shield
in place.
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.
WARNING:
tachment clutch engaged while mowing is
strongly discouraged. Turning the ROS "ON",
to allow reverse operation with the attach-
ment clutch engaged, should only be done
when the operator decides it is necessary to
reposition the machine with the attachment
9/16"
engaged. Do not mow in reverse unless
absolutely necessary.
12
While engine
Backing up with the at-