Sears 917.25597 Lawn Mower User Manual


 
CUSTOM
TRACTOR
Always observe safety rules when performing any mainte-
nance_
BRAKE OPERATION
If tractor requires more than six (6) feet stopping distance
at high speed in highest gear, then brake must be adjusted..
(See "TO ADJUST BRAKE" in the Service and Adjust-
ments section of this manual).
TIRES
o Maintain proper air' pressure in all tires (See "PROD-
UCT SPECIFICATIONS" on page 3 of this manual)_
* Keep tires free of gasoline, oil, or insect control chemi-
cals which can harm rubber..
o Avoid stumps, stones, deep ruts, sharp objects and
other hazards that may cause tire damage.
BLADE CARE
Forbest results mower blades must be kept sharp. Replace
bent or' damaged blades.
BLADE REMOVAL (See Fig. 14)
o Raise mower to highest position to allow access to
blades.
Remove hex bott, tockwasherand flat washer securing
blade.,
° Install new or' resharpened blade with trailing edge up
towards deck as shown.
o Reassemble hex bolt, lock washer and flat washer in
exact order as shown.
° Tighten bolt securely (30-35 Ft. Lbso torque)..
ESPONSI L ES
TO SHARPEN BLADE (See Fig. 15)
Care should be taken to keep the blade balanced_ An
unbalanced blade will cause excessive vibration and even-
tual damage to mower and engine,
° The blade can be sharpened with a file or on a grinding
wheel Do not attempt to sharpen while on the mower.
To check blade balance, you will need a 5/8" diameter
steel bolt, pin, ora cone balancer. (When using a cone
balancer, follow the instructions supplied with bal-
ancer)o
Slide blade on to an unthreaded portion of the steel bolt
or pin and hold the bolt or pin parallel with the ground.
If blade is balanced, it should remain in a horizontal
position. If either end of the blade moves downward,
sharpen the heavy end until the blade is balanced..
NOTE: Do not use a nail for balancing blade. The lobes of
the center hole may appear to be centered, but are not.
CENTER HOLE
5/8" BOLT
OR PIN
BLADE
FIG. 15
TRANSAXLE COOLING
Keep transaxle free from build-up of dirt and chaff which
can restrict cooling..
IMPORTANT: BLADE BOLT IS GRADE 8 HEATTREATED.
NOTE: We do not recomrnend sharpening blade- but if you
do, be sure the blade is balanced.
MANDREL
BLADE ASSEMBLY
TRAILING
EDGE UP
FLAT WASHER, ._ /
LOCK WASHER , _ /
*A GRADE 8 HEAT TREATED BOLT CAN BE
IDENTIFIED BY SIX LINES ON THE BOLT HEAD.
FIG. 14
CHECK TRANSAXLE OIL LEVEL
(See Fig. 16)
= Block up rear axle securely or use a tractor jack,
° Remove left rear wheel by removing hub bolts,,
° Remove filler plug from transaxle, Oil level must be
even with plug threads, If necessary, fill with SAE 30
non-detergent oil (ISO 100), Replace filler plug,
° Reassemble wheel to hub.
- Forapproximate capacity see "PRODUCT SPECIFI-
CATIONS" on page 3 of this manual.
TRANSAXLE
FILLER PLUG
O
o
O
0
16 FIG, 16