MTD Yard Machines MTD1435a Manual Del Operador página 19

For Parts Call 606-678-9623 or 606-561-4983 For Parts Call 606-678-9623 or 606-561-4983
MAINTENANCE AND REPAIR INSTRUCTIONS
REMOVING A UNIT FROM STORAGE
1. Remove spark plug.
2. Pull starter rope briskly to clear excess oil from com-
bustion chamber.
3. Clean and gap spark plug or install a new spark plug
with proper gap.
4. Prepare unit for operation.
5. Fill fuel tank with proper fuel / oil mixture. See Oil
and Fuel Information.
GUIDE BAR MAINTENANCE
Frequent lubrication of the guide bar (railed bar which
supports and carries the saw chain) sprocket tip is
required. Proper maintenance of the guide bar, as
explained in this section, is essential to keep your saw in
good working condition.
Sprocket Tip Lubrication
CAUTION:
been pre-lubricated at the factory. Failure to
lubricate the guide bar sprocket tip as
explained below will result in poor perform-
ance and seizure, voiding the manufacturer's
warranty.
Lubrication of the sprocket tip is recommend-
ed after 10 hours of use or once a week,
which ever occurs first. Always thoroughly
clean guide bar sprocket tip before lubrication.
The Lube Gun (optional) is recommended for applying
grease to the guide bar sprocket tip. The Lube Gun is
equipped with a needle nose tip which is necessary for
the efficient application of grease to the sprocket tip.
To lubricate the sprocket tip:
1. Move the STOP switch down to stop.
NOTE: It is not necessary to remove the saw chain to
lubricate the guide bar sprocket tip. Lubrication
can be done on the job.
2. Clean the guide bar sprocket tip.
3. Using the Lube Gun (optional), insert tip of lube gun
into the lubrication hole and inject grease until it
appears at outside edge of sprocket tip (Fig. 41).
4. Rotate saw chain by hand. Repeat lubrication proce-
dure until the entire sprocket tip has been greased.
Fig. 41
The sprocket tip on
your new saw has
www.mymowerparts.com www.mymowerparts.com
SAW CHAIN / BAR LUBRICATION
Adequate lubrication of the saw chain is essential at all
times to minimize friction with the guide bar.
Never starve the bar and chain of oil. Running the saw
with too little oil will decrease cutting efficiency, shorten
saw chain life, cause rapid dulling of chain, and cause
excessive wear of bar from overheating. Too little oil is
evidenced by smoke, bar discoloration or pitch build-up.
NOTE: Saw chain stretches during use, particularly
when it is new, and it will occasionally be neces-
sary to adjust and tighten it. New chain will
require adjustment after about 5 minutes of oper-
ation.
AUTOMATIC OILER
Your chain saw is equipped with an automatic clutch
driven oiler system. The oiler automatically delivers the
proper amount of oil to the bar and chain. As the engine
speed increases, so does the oil flow to the bar pad.
There is no flow adjustment. The oil reservoir will run out
at approximately the same time as the fuel supply runs
out.
GUIDE BAR MAINTENANCE:
Most guide bar problems can be prevented merely by
keeping the chain saw well maintained.
Insufficient guide bar lubrication and operating the saw
with chain that is too tight will contribute to rapid bar
wear.
To help minimize bar wear, the following guide bar main-
tenance procedures are recommended.
BAR WEAR - Turn guide bar frequently at regular inter-
vals (for example, after 5 hours of use), to insure even
wear on top and bottom of bar.
BAR GROOVES - Bar grooves (or rails which support
and carry the chain) should be cleaned if saw has been
used heavily or if saw chain appears dirty. Rails should
always be cleaned every time saw chain is removed.
OIL PASSAGES - Oil passages on the bar should be
cleaned to ensure proper lubrication of the bar and
chain during operation.
NOTE: The condition of the oil passages can be easily
checked. If the passages are clear, the chain will
automatically give off a spray of oil within sec-
onds of starting the saw. Your saw is equipped
with an automatic oiler system.
CHAIN MAINTENANCE
Chain Tension
Check the chain tension frequently and adjust as often
as necessary to keep the chain snug on the bar, but
loose enough to be pulled around by hand.
19