Maintenance Instructions - Yard Machines MTD PS Operator's Manual

For Parts Call 606-678-9623 or 606-561-4983 For Parts Call 606-678-9623 or 606-561-4983
GUIDE BAR MAINTENANCE
WARNING:
forming any maintenance on your saw.
Fig.26
Proper maintenance of the guide bar, as explained in
this section, is essential to keep your saw in good
working order.
GUIDE BAR MAINTENANCE :
Most guide bar problems can be prevented merely by
keeping the chain saw well maintained.
Incorrect filing and non-uniform cutter and depth gauge set-
tings cause most guide bar problems, primarily resulting in
uneven bar wear. As the bar wears unevenly, the rails
widen, which may cause chain clatter and difficulty in mak-
ing straight cuts.
Insufficient guide bar lubrication and operating the saw with
a chain that is TOO TIGHT will contribute to rapid bar wear
.
To help minimize bar wear, the following guide bar mainte-
nance is recommended.
BAR WEAR - Turn guide bar frequently at regular intervals
(for example, after 5 hours of use), to ensure even wear on
top and bottom of bar.
BAR GROOVES - Bar grooves (or rails which support and
carry the chain) should be cleaned if the saw has been
heavily used or if the saw chain appears dirty. Rails should
always be cleaned every time the saw chain is removed.
OIL PASSAGES - Oil passages at bar pad should be
cleaned to ensure proper lubrication of the bar and chain
during operation. This can be done using a soft wire small
enough to insert into the oil discharge hole.

MAINTENANCE INSTRUCTIONS

Ensure that the
power cord is discon-
nected before per-
www.mymowerparts.com www.mymowerparts.com
To Clean Guide Bar Rails:
1. Remove sprocket cover, bar and chain .
2. Using a screwdriver, putty knife, wire brush or other sim-
ilar instrument, clear residue from the rails on the guide
bar.
This will keep the oil passages open to provide proper
lubrication to the bar and chain (Figure 26).
3. Reinstall the bar, chain and bar bolt retaining nuts. .
CHAIN MAINTENANCE INSTRUCTIONS
WARNING:
training for dealing with kickback (see Safety
Precautions), always use a low-kickback saw
chain, which significantly reduces the danger of
kickback. Low-kickback saw chain does not
completely eliminate kickback.
A low-kickback or "safety chain", should never be regarded
as total protection against injury.A low-kickback saw chain
should always be used in conjunction with other kickback
protection devices such as the Hand Guard furnished with
your unit.
Always use a replacement saw chain designed as "low-
kickback" or a saw chain which meets the low-kickback
performance.
A standard saw chain (a chain which does not have the
kickback reducing guard links) should only be used by an
experienced professional chain saw operator.
What is a Low-Kickback Saw Chain?
A low-kickback saw chain is a chain which has met the
kickback performance requirements of ANSI B175.1. Do
not use other replacement chain unless it has met these
requirements for your specific model.
By keeping the saw chain in good working condition and
correctly serviced as recommended in this manual, you will
be able to maintain the safety system of your chain saw
over the life of the product.
18
Unless you have experi-
ence and specialized