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15
MAINTENANCE
1
3
2
TO SHARPEN BLADE
NOTE: We do not recommend sharp en ing blade - but if
you do, be sure the blade is balanced. An un bal anced
blade will cause eventual damage to lawn mower or engine.
• The blade can be sharp ened 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, or a cone balancer. (When using a cone
bal anc er, follow the in struc tions supplied with bal anc er.)
NOTE: Do not use a nail for balancing blade. The lobes
of the center hole may appear to be centered, but are not.
1. 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 bal anced, it should remain in a horizontal
po si tion. If either end of the blade moves downward,
sharpen the heavy end until the blade is balanced
(Figure 21).
1. Center hole
2. 5/8" Bolt or pin
3. Blade
Figure 21
Figure 22
GRASS CATCHER
• The grass catcher may be hosed with water, but must
be dry when used.
• Check your grass catcher often for damage or
de te ri o ra tion. Through normal use it will wear. If
catcher needs replacing, replace only with ap proved
replacement catcher. Give the lawn mower model
number when ordering.
GEAR CASE
• To keep your drive system working properly, the gear
case and area around the drive should be kept clean
and free of trash build-up. Clean under the drive cover
twice a season.
• The gear case is filled with lubricant to the proper level at
the factory. The only time the lubricant needs attention
is if service has been performed on the gear case.
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE
SAE VISCOSITY GRADES
-20 0 30 40
80
100
-30
-20 0
20 30 40
F
C
32
-10
10
60
5W-30
SAE 30
ENGINE
LUBRICATION
Use only high quality detergent oil rated with API service
classification SG–SL. Select the oil's SAE viscosity
grade according to your expected operating temperature
(Figure 22).
NOTE: Multi-viscosity oils (5W30, 10W30 etc.) improve
starting in cold weather, and you should check your engine
oil level frequently to avoid possible engine damage from
running low on oil.
Change the oil after every 25 hours of operation or at least
once a year if the lawn mower is not used for 25 hours in
one year.
Check the crankcase oil level before starting the engine
and after each five (5) hours of continuous use. Tighten oil
plug securely each time you check the oil level.