Ammann ARR 1575, Workshop Manual

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285 ARR 1575
WORKSHOP MANUAL
18�1�1 The engine does not start
The following description applies to starting using the ignition lock: If the machine cannot be started using only the manual control,
refer to the next chapter.
Defect description, the engine does not start
Defect description Probable cause Check
The engine does not start G2 battery Is the battery voltage OK? Battery terminals? Battery
cable on the terminals?
The starter does not rotate S1 ignition Can the engine be started by ignition? -> Control
does not work.
F11 fuse Is F11 OK?
N1 control unit Is the connector connected?
K1 relay The relay must close when the ignition turns on.
F22 fuse Is F22 OK?
G1 alternator Is the connector connected? With the ignition
turned on, the connection must be D+=0V. Is the
connector correctly connected? Relay checked?
K2 ignition relay With the ignition in the Start position, the connec-
tion must be 50 + 12 V.
M1 engine starter
The engine does not start M2 diesel fuel pump Is there enough diesel in the tank? Is the diesel fuel
pump working?
The starter rotates
But the engine does not start F21 fuse Is the F21 fuse OK?
S21 engine oil pressure switch If the motor is stopped, the switch must be closed.
Is F12 OK?
F12 fuse When the starter rotates, there must be +12 V on Y1
(red).
N1 control unit Is the connector connected?
K3 timer Is the connector connected? Relay checked?
K4 relay For the 50 starting position, the input coil (white)
must be +12 V for 1 s.
Y1 input/holding coil Was the safety bar checked?
The engine starts but runs only for ap-
prox. 4 s
S22 water temperature switch At normal operating temperature, the switch must
be open. Grounding? Is the connector firmly con-
nected? Corrosion-free?
S21 engine oil pressure switch When starting, the switch must be closed. When the
engine is running, it must be open.
Is the connector firmly connected? Corrosion-free?
Preheating does not work R1 preheating plug In cold weather, please also check the preheating
system. In the preheating ignition position, the H2
indicator lamp must be on and there must be +12 V
on the glow plug.
F24 fuse Is F24 OK?
K6 relay Is the connector connected? Relay checked?
Yanmar engine
(Yanmar TNVDI, service manual) Diesel Diesel in the tank?
Passable diesel inlet?
Air in the injection system?
Passable filter?
Air in the system?
“Smoke signals” on the exhaust pipe?
Compression, injection system, valve clearance?
Is the fuel pump working? Is F22 OK?