Homelite UT10519 - Manual (Page 33)

Page 33 — English
MAINTENANCE
Use the following instructions to tighten the mount-
ing screw of the nose guard. These are specially
hardened screws. If you cannot install the screw
tightly, replace both the screw and the SAFE-T-TIP
®
before further operation.
NOTE: Do not replace the screw with an ordinary
screw. Use only identical replacement parts from
the manufacturer when replacing parts.
In addition to preventing chain contact with solid
objects at the nose of the bar, the SAFE-T-TIP
® also
helps keep the chain away from abrasive surfaces,
such as the ground. Keep it on the right hand side
of the bar where it will be between the chain and
the ground during flush with ground cutting.
The mounting screw requires a 5/16 in. wrench (or
adjustable wrench) to achieve the recommended
torque of 35 to 45 in.lb. A torque within this range
can be achieved by using the following method.

Tighten the screw with wrench until snug.
 From the snug position, tighten the screw an
additional 3/4 of a turn using a wrench.
CLEANING THE AIR FILTER
See Figures 61 - 64.

For access to the air filter and carburetor area,
loosen the three screws holding the cylinder
cover.
 Activate chain brake.
 Lift the front of the cylinder cover past chain
brake lever.
 Lift the back of the cylinder cover past handle.
 Before removing the air filter from the carbure-
tor, blow or brush as much loose dirt and saw-
dust from around the carburetor and chamber
as possible.
NOTE: Make sure to pull the choke rod out to
keep the carburetor from being contaminated.
 Remove the screw securing the air filter.
 Position a flat screwdriver between the tabs and
twist to release from the air filter base.
 Lift the air filter off the air filter base.
Choose one of the following cleaning options:

To lightly clean, tap the filter against a smooth,
flat surface to dislodge most saw dust and dirt
particles.
Fig. 62
Fig. 61
Fig. 63
STOP
STOP
scRew
aiR FilteR
Retaining
scRew
aiR FilteR
cylindeR
coVeR
pRe-FilteR
staRteR assembly
Fan
hoUsing
baFFle
scRews
 After every 5 hours of operation, clean in warm
soapy water, rinse, and let dry completely.
Replace with a new filter after every 25 hours
of use.
NOTE: An alternate method is to clean the filter
with compressed air. Always wear eye protec-
tion to avoid eye injury.
 Reinstall air filter, making sure that tabs on air
filter are located in channels on air filter bottom
before tightening filter retaining screws.