Nanni Q2400 Series, Руководство пользователя

Страница: 67 / 110

67
S 07 MAINTENANCE
Fuel circuit
1. Loosen the clamps (2) and remove the fuel hoses (1).
2. Replace new fuel hoses (1) using hoses kit and 7 new
clamps.
3. Tighten the clamp (2).
WARNING!
Stop the engine when attempting the check and change
prescribed above.
4. When bleeding fuel system (see fuel filter replace -
ment)
Specification
Clamp bands -
Torque
3 N·m
(2.21 ft-lbs)
IMPORTANT!
Except when venting the air, be sure to keep closed the air
vent coupling bolt of the fuel injection pump. Otherwise,
the engine may stall.
THERMOSTAT REPLACEMENT
WARNING!
Stop the engine before replacing the thermostat. Do not
remove the thermostat from the heat exchanger until the
coolant temperature is too high. The thermostat replace-
ment must be done every 2 years or 400 hours whichever
comes first.
Thermostat removal:
1. Drain the coolant (see concerned chapter).
2. Unscrew the clamp and remove the coolant hose (see
chapter hoses and clamps replacement)
3. Remove the two screws(2) holding the thermostat
cover and remove the thermostat cover (3) with its
gasket (4).
4. Remove the thermostat (5) with its gasket (4).
Thermostat installation:
1. Reinstall the thermostat (5) in the correct position
(Label facing downwards).
2. Reinstall the cover (3) with a new gasket (4 ), then refit
and tighten the two screws (3).
3. Fill the coolant with liquid as recommended by NANNI
(see related chapter).
4. Bleed the circuit and start the engine to check for
leaks.