Maintenance Schedule; Maintenance Required; Line Installation - Troy-Bilt AST TB75SS Operator's Manual

MAINTENANCE SCHEDULE
Perform these required maintenance procedures at the
frequency stated in the table. These procedures should
also be a part of any seasonal tune-up.
NOTE: Some maintenance procedures may require
special tools or skills. If you are unsure about
these procedures take your unit to any non-road
engine repair establishment, individual or
authorized service dealer.
WARNING:
To prevent serious injury, never do 1
maintenance or repairs with unit running. Always do I
maintenance and repairs on a cool unit. Disconnect I
spark plug wire to ensure the unit will not start. J
NOTE: Maintenance, replacement, or repair of the
emission control devices and system may be
performed by any non-road engine repair
establishment, individual or authorized service
dealer.
In order to assure peak performance of your engine,
inspection of the engine exhaust port may be necessary
after 50 hours of operation. If you notice lost RPM, poor
performance or general lack of acceleration, this service
may be required. If you feel your engine is in need of this
inspection, refer service to any non-road engine repair
establishment, individual or authorized service dealer for
repair. DO NOT attempt to perform this process yourself
as engine damage may result from contaminants
involved in the cleaning process for the port.
FREQUENCY
Before starting engine
Every 10 hours
Every 25 hours
MAINTENANCE REQUIRED
Fill fuel tank with fresh fuel
Clean and re-oil air filter
Check and clean spark arrestor
Check spark plug condition and gap
REFER TO
Page 8
Page 15
Page 16
Page 18
Every 50 hours Inspect exhaust port and spark arrestor screen for clogging or P 1
obstruction to assure maximum performance levels . age b
LINE INSTALLATION FOR THE SPEEDSPOOL _
WARNING: Never use metal-reinforced line,
wire, Chain, Or rope, etc. These can break off
and become dangerous projectiles.
Always use Genuine Factory Parts rM 0.095 inch
(2.41 mm) replacement line. Lines other than those
specified may make the engine overheat or fail.
There are two methods to replace the SpeedSpool ce
trimming line:
• Wind the inner reel with new line
• Install a pre-wound inner reel
Winding the Inner Reel With New Line
NOTE: It Is unnecessary to remove the bump knob to
install a new trimming line.
1. Cut two pieces of 0.095 inch (2.41 mm) trimming
line, 10 feet (3 m)long.
2. Hold the outer spool and turn the inner reel
counterclockwise to line up the arrows on the outer
spool and inner reel (Fig. 15).
All i WARNING: Always use the correct line
A_i. length when installing trimming line on the
I uniL The line may not release properly if the I
[ [ ne s too ong.
j
Top View Of The SpeedSpoor
Arrows
Outer Spool
Inner Reel
Fig. 15
Bump Knob
12