Maintenance
Beforeinspecting,cleaning or servicingthe machine, shut off engine, discon-
nectsparkplugwire, and make surethat all movingpartshave come to a com-
plete stop. Removeignitionkeyonelectric start models.
Failure to follow these instructions can result in personal injury or property
damage.
NOTE: LEFTand RIGHTsides of unit areas viewed
from operator's position behind the handlebars.
REQUIREDMAINTENANCESCHEDULE
BEFOREEVERY EVERY EVERY AS
REQUIREDMAINTENANCE EACH 5 25 100 NOTED
USE HOURSHOURSHOURS
CHECKENGINEOIL LEVEL
CHECKTRIMMERLINES 1
CHECKTRIMMERHEADENGAGEMENT
MACHINECLEANING 3
CHECKNUTSANDBOLTS
CHANGEENGINEOIL 2, 5
SERVICEAIR FILTERSYSTEM 5
CLEANUNDERDECK
GENERALLUBRICATION
INSPECTDRIVEBELT
CLEANENGINE 4
CHECKWEARCUP 6
Chart5-1
ADJUSTING TRIMMER
HEADENGAGEMENT
Thetension on the drive belt must be
correct for proper operation of the
trimmer head. If the tension is correct,
the trimmer headwill rotate when the
Trimmer HeadControl Bail is pulled back
againstthe handlebar.
A loose or worn drive belt will causethe
trimmer headto move slowly, or not at
all,when the control bail is engaged(belt
squealingmay also be noticeable).
If the belt tension is too tight, the
trimmer headmay rotate before thecon-
trol bail is engaged,or when there is no
freeplay in the control bail. Toadjust
belttension:
1. Stop the engine and wait for all parts
to stop moving. Adjust the position of
the two jam nuts on the control cable
adjustment stud (see Figure5-2) as
describednext:
a. Totighten belt tension, move the
upper nut (A, Figure 5-2) upwardone
or two full turns, then move the lower
nut (B) upward. Tighten both nuts
securely. Test unit and readjustjam
nuts as needed.
b. To loosen belt tension, move the
lower nut (B, Figure 5-2) downward
one or two full turns and then move
the upper nut (A) down. Tighten both
nuts securely. Test unit and readjust
jam nuts as needed.
NOTE1- Newline replacementis suggestedwhen old line is 50% or lessof original length.
NOTE2- Changeoil after first two hours of new operation; thereafter every 25 hours.
NOTE3- Cleandaily if usedin extremely dusty/dirty conditions (seeenginemanual).
NOTE4- Cleanbefore using machine and at each fuel refill,
NOTE5- Service more often if used in extremely dusty or dirty conditions (seeengine
manual).
NOTE6- Replacewhen severe gouges exist on bottom surface.
A
B
Figure5-2".Belttensionadjustment.
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