PREVOST LE MIRAGE XLII, Руководство по обслуживанию

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Figure 3 - CROSS-SECTIONAL VIEW (GROUND-FLOAT TYPE)
When the engine starts, the clutch prevents
excessive overrun of the armature. Because
the clutch is for a short-time rating, the start
switch must be turned off immediately after
the engine starts.
2. Troubleshooting the starting circuit
If the starting system is not functioning
correctly, the following checks will assist in
determining which part of the circuit is at
fault.
2.1 Battery
To determine the condition of the battery,
follow the testing procedure specified by the
vehicle manufacturer. Ensure that the
battery is fully charged. (If the battery is
faulty, the other starting systems cannot be
checked.)
2.2 Wiring
Inspect the wiring relating to the starting
system for damage. Inspect all connections
to the battery, start switch, magnetic switch,
and starter solenoid for contact failure due to
looseness or rust.
2.3 Magnetic switch (Directly attached to the
starter)
Inspect the magnetic switch for its function
with the start switch closed (i.e. key switch in
the start position) by measuring the voltage
between the S-terminal in the starter
solenoid and the ground. The switch should
not be closed for more than 3 seconds. If
this time is exceeded, the starter solenoid
may be damaged.
2.4 Ring gear and pinion
If the battery, wiring, and magnetic switch
are in satisfactory condition, it is assumed
that a "stuck" condition may be found (this
condition is the phenomenon caused when
the pinion is caught by the ring gear, thereby
resulting in neither pinion rotation nor thrust
movement). This only occurs in very rare
cases when the ring gear and pinion teeth
are damaged on their end faces. Therefore,
remove the starter and check the end faces
on the ring gear and pinion for damage
(burr). If necessary, replace the ring gear
and starter.
2.5 Starter
2.5.1 Pinion movement and starter solenoid
operation test
As described in figure 4, inspect that the
pinion advances forward (no rotation will
occur) when a voltage of 16 to 24 V is
applied to between the S-terminal in the
starter solenoid and the ground. Inspection
must be done within 3 seconds for voltage
application. If the pinion does not advance
forward, replace the starter. The P-coil in the
starter solenoid may be layer-shorted, or the
pinion sliding area may be clogged.