John Deere 5310 S - Manual (Page 107)

Service—Every 250 Hours
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Service Air Cleaner
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A—Air Cleaner
B—Dust Unloader Valve
A dual element air cleaner is standard. A dirty primary
element is indicated when the air restriction indicator on
instrument panel illuminates. A dirty element can result in
loss of power or excessive smoke.
IMPORTANT: Check unloader valve (B) frequently.
Empty as often as needed to keep it
from filling with dust. If valve is allowed
to fill with dust, air cleaner element will
plug rapidly.
Service air cleaner (A) when indicator light illuminates,
every 250 hours or at least once a year.
Replace primary element at least one a year.
The secondary element should be removed only when
being replaced, normally once a year.
See procedure in Removing Air Cleaner Elements in
Service section.
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Inspect and Adjust Alternator/Fan Belt
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A—Tension Adjustment Cap Screw
B—Alternator Mounting Bolt
C—Alternator Frame
Replace if worn or damaged. (See procedure in Service
section.)
NOTE: Run engine for five minutes to warm a cold belt.
Let a hot belt cool for 15 minutes before
adjustment.
Check tension by pressing belt midway between pulleys.
Belt should deflect about 19 mm (3/4 in.) at 89 N (20 lb
force).
IMPORTANT: Pry against alternator frame only
Adjust tension by loosening cap screw (A) and mounting
bolt (B). Apply force to alternator frame (C) until belt
tension is correct. Tighten cap screw and bolt.
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