Sears 917.25004 Lawn Mower User Manual


 
MA
OIL FILTER
FIG URE 19
BRAKE
OISC BR_,K e
TENANCE
ENGINE OIL DIPSTICK
AND FILL TUBE
(WITH PARKING
BRAKE ENGAGED)
Every 25 Hours (Twice a Mowing Season)
1. Brake Adjustment
This Tractor is equipped with an adjustable brake system
mounted on the right side of the transax/e (Fig.. 20)_
!A
IF TRACTOR REQUIRES MORE THAN
1.8 METRES (SIX FEET) STOPPING DIS-
TANCE IN HIGHEST GEAR, THEN
BRAKE MUST BE ADJUSTED.
a. Depress clutch/brake pedal and engage parking
brake._
b. Measure distance between brake operating arm
and nut "A" on brake rod..
c If distance is other than 3.8 cm (1-1/2"), loosen jam
nut (Fig.. 20) and turn nut until distance becomes
3..8cm (1- I/2"). Retighten jam nut against nut ",4"
Road test tractor for proper stopping distance as stated
above._ Readjust ff necessary..
2. Tire Care
a. Maintain tire pressure in front at 14 PSI
(1 Kg/cnf) and rear tires at 10 PSI (0.7 Kg/cnf)..
b Keep tires free of gasoline, oil, or insect control
chemicals which can harm rubber.
c Avoidstumps, stones, deep rutsandother hazards
that may cause tire damage.
3 Blade Sharpening
For best results mower blades must be kepl sharp. The
blades can be sharpened with a few strokes of a tile or
on a grinding wheel We suggest they be sharpened
after every 25 hours oi mowing Do not attempt to
sharpen while on mower fl you mow in sandy soil
check the bfades after each two mowings The sand
wears lhe blades away rapidly,
FIGURE 20
FIGURE 21
,t
\
BLADE
a
When gr_ndmg care should be taken to matntain
blade balance and the blade should be checked
for proper balance before retnstattanon on mower
Unbalanced or bent blade wilt cause excessive
vtbrat_on when running and eventual damage to
mower or engine Replace bent or damaged
blades
b,.
To check blade balance, drive a nail into a beam or
waiL Leave about one inch (25_4 mm) of the
straight nail exposed. Place center hole of clean
blade over the head of the nail (Fig. 21). NOTE:
CENTER HOLE OF BLADE ON NATL. IF BLADE
1S PROPERLY BALANCED, BLADE SHOULD
REMAIN IN POSITION SHOWN IN FIG. 21_ IF
EITHER END OF THE BLADE MOVES DOWN-
WARD, BLADE IS NOT BALANCED. SHARPEN
THE HEAVY END UNTIL BLADE IS BALANCED
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