Figure 60
1. Counterbalance dial 2. Traction assist valve
T he traction assist v alv e ( Figure 60 ) is used to boost the
pressure in the counterbalance circuit. R ecommended
traction assist counterbalance pressure is 700 psi when
traction pressure is abo v e 1800 psi. R otate the screw
( Figure 60 ) cloc kwise to increase the pressure or
countercloc kwise to decrease the pressure .
Important: T raction unit must be at operating
temperatur e when adjusting h y draulic pr essur e.
Cleaning
Servicing the Spark Arrestor
Mufer
Ev er y 200 hours operation, clear the m uffler of carbon
buildup .
1. R emo v e the pipe plug from the clean-out por t at
the lo w er side of the m uffler .
T he muf fler may be hot and could cause
injur y .
Be car eful while w or king ar ound the muf fler .
2. Star t the engine . Plug the nor mal m uffler exit with
a bloc k of w ood or metal plate so that the exhaust
flo w will be forced out of the clean-out por t.
Contin ue to bloc k the exit until carbon de posits
cease coming out of the por t.
Do not stand in line with the clean-out por t.
Al w ays w ear safety g lasses.
3. Stop the engine and re place the pipe plug .
46