To Replace The Gear Oil; To Check The Grease Cups - Husqvarna 321S15 Operator's Manual

To replace the gear oil

• After fi rst 25 hours of use, replace the gear oil. After
that, replace it after every 100 hours of use (SAE90,
100cc).
(13) Upper bolt
(14) Check-window
(15) Drain bolt
Maintenance procedure
Inspect the whole unit for damage,
leak or spillage
Inspect all accessible fasteners
Inspect all screws/nuts/bolts
Check the hoses and fi ttings
Clean for any debris
Inspect and clean the fuel tank
Inspect and clean the fuel fi lter
Inspect and clean the air cleaner
Check the operation of the throttle
lever and stop switch.
Empty the fuel tank
Apply grease to the plunger
Clean or re-adjust the spark plug gap

To check the grease cups

• Open the upper cap (16) of the grease cup and check
the grease amount. Fill it up if it is decreasing.
13
14
15
Daily Weekly
Overall
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Engine
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16
Monthly
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321S15/25
Note
Tighten or replace
if necessary
Tighten or replace
if necessary. Ad-
justing screws are
not included.
Make sure the
gap is 0.6 to 0.7m
(.025in). Replace
if necessary
GB-17