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6. TROUBLE SHOOTING
6.1 MOWER PULLING LEFT OR RIGHT.
a) Check idler arm pulleys and drive sheaves for mud
and/or grass buildup. Check for proper scraper
position. See 5.2.4.
b) Check to be sure idler arms pivot freely, if not,
lubricate idler pivots.
c) Check for worn drive belts.
NOTE: Wheel drive belts should be replaced
as a set
. A new
belt should not be mixed with a worn belt.
d) Check drive linkage adjustment - See 3.8.5.
e) Check for proper tire pressure in drive tires.
Recommended tire pressure for the drive tires is 12 to
16 psi. Higher pressures may be used in the tire on
the side that it pulls to (up to 28 psi).
Note:
Different pressures may make mower cut unevenly.
6.2 MOWER CUTS UNEVENLY.
a) Check the drive tire pressure and tire circumference. See
5.1.9.
A more uniform cutting height may be obtained with higher
tire pressure on rough terrain. A lower tire pressure
provides more flotation.
b) Check blade spacers, axle positions, and front caster
spacers. They must be equal on each blade.
c) Check caster mounting brackets to be sure all bolts
are tight.
d) Check blades tip to tip for straightness. (They should
be within 3/16" or one blade width from being in line.)
6.3 BLADES DO NOT STOP WHEN DISENGAGED.
Check belt guides to see that they are properly set.
See Belt Guide Adjustment 5.2.7.
6.4 ENGINE WILL NOT START.
a) Refer to Section 4.3.2 and follow directions
to make sure engine is being properly choked.
b) Make sure transmission is in "true neutral" position.
See Sections 3.8.4(c).
c) Check that the blades are disengaged and the blade
switch is depressed (See Section 5.2.12).
d) Check that there is fuel in the tank and that the fuel
valve is open.
e) Check that the spark plug wire(s) is/are properly
connected.
f) Check for loose or faulty wiring connections.
g) Check for corrosion at all wiring connections. Even
minor corrosion may cause a faulty connection. Clean
connector terminals thoroughly, apply dielectric
grease and reconnect.