rev 8/02 5 - 1 09-254B
SERVICE section 5
MAINTENANCE
Daily maintenance:
·
Visual inspection for loose parts and accumulation of grass and dirt.
·
Clean accumulation of grass clippings from beneath deck daily for better mowing performance.
·
Keep blades sharp. Check the tips of the blades for wear.
25 hour maintenance:
·
In addition to daily maintenance, grease roller and all bearings.
·
Spindle housings must be kept full of grease. Grease spindles until grease “shows” at the relief hole
under the spindle drive pulley. NOTE: The relief hole is under the spindle hub and is not visible. As
grease enters the spindle housing you can hear the sound of escaping air at the relief hole. Stop
greasing when the sound of escaping air ceases.
·
Check drive belt tension. See Drive Belt Installation on page 5-2.
·
Check 1/4" cap screws on pulley bushings. Torque should be 95 inch pounds. Tighten these cap screws
in alternating sequence 10-12 times to assure equal torque on all cap screws.
· Check blade bolts. Torque should be 75-85 foot pounds.
Annual Maintenance:
· In addition to daily and 25 hour maintenance, remove the drive belt and check for cracks or wear.
Rotate each spindle to check for roughness which would indicate bearing wear. Remove and sharpen
blades, clean and wash deck prior to storage. The acid in grass clippings causes premature corrosion
and rusting of mower parts.
· Grease all bearings after washing.
ADJUSTMENTS
Sharpening blades
Be careful while sharpening blades that the
corners of the blade do not become rounded at the
tips. This reduces the blades overlap and will cause
skipping. While sharpening, it is essential to ensure
the balance of the blades is maintained to prevent
vibration. Blade bolt torque should be 75-85 foot
pounds. Rotate blades after re-installing to check
for bent or bowed blades and blade alignment.
Blade alignment
When installing sharpened blades or new
blades be sure the mating surfaces are clean and
the retaining washer is not bent. Check for bent
blades by rotating blades until tips are near each
other. (It is easier to do this with main drive belt idler
spring unhooked.)
Leveling mower deck
The front to rear leveling adjustment is pro
-
vided by two slots in the linkage which supports the
front of the deck. This allows each side to be ad
-
justed independently. Check the blade level with
mower resting on a level floor and the cutting height
set at about 2-1/2" setting. Measure to the tip of the
left blade at the rear, then rotate the blade 180 de
-
grees and measure again to the tip of the blade at
the front. The cutting height should be equal or
1/16" lower at the front. Change adjustment in the
left slot as required and measure again until proper
setting is reached. Repeat procedure for blade at
right end of the deck and adjust right slot.
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