Manitou MC 50 Turbo POWERSHIFT Serie 3-E3 - Page 156

3-48
G - OCCASIONAL MAINTENANCE
G1 - FUEL SYSTEM
BLEED
These operations are to be carried out only in the following cases:
t"DPNQPOFOUPGUIFGVFMTZTUFNSFQMBDFE
t"ESBJOFEUBOL
t3VOOJOHPVUPGGVFM
Ensure that the level of fuel in the tank is sufficient and bleed in the following order:
- Open the I.C. engine bonnet.
- Put the ignition on for three minutes on the lift truck, to give the lift pump time to release air
from the filter.
- Switch off the ignition with the ignition key.
- Disconnect the harness from the clogging indicator 1 (fig. G1/1), and remove the air filter outlet
hose 2 (fig. G1/1).
- Remove the air filter bracket 3 (fig. G1/2), and pivot the assembly to the side.
BLEEDING THE INJECTORS
- Remove the injectors cover 4 (fig. G1/3).
- Loosen high pressure connectors 5 (fig. G1/4) of all the injectors.
- Temporarily refit the air filter outlet hose 2 (fig. G1/1).
- Activate the starter until the diesel fuel flows out free of air at high pressure connectors 5 (fig.
G1/4).
Do not engage the starter motor on a continual basis for more than 30 seconds and let it cool between
unsuccessful attempts.
- Tighten the connections while the diesel fuel is flowing out (tightening torque 30 N.m).
- The I.C. engine is then ready to be started up.
- Turn the I.C. engine over slowly for 5 minutes immediately after bleeding the fuel feed circuit,
in order to ensure that the injection pump has been bled thoroughly.
- Refit the assembly and reconnect the harness to the clogging indicator 1 (fig. G1/1).
NOTE: If the I.C. engine functions correctly for a short time then stops or functions irregularly,
check for possible leaks in the low pressure circuit. If in doubt, contact your dealer.
G1/2
3
G1/3
4
G1/4
5
5
5
5
G1/1
2
1
647003 EN (03/01/2012)