Perkins 854E-E34TA Systems Operation Testing And Adjusting page 88

88
Electrical System
b. If the voltage is equal to or greater than the
voltage that is given in table 14 , then the
battery and the starting motor cable that goes
to the starting motor are within specifications.
Go to step 6.
c. The starting motor voltage is less than the
voltage specified in table 14 . The voltage drop
between the battery and the starting motor is
too great. Go to step 5.
5. Measure the voltage.
a. Measure the voltage drops in the cranking
circuits with the multimeter. Compare the
results with the voltage drops which are
allowed in table 15 .
b. Voltage drops are equal to the voltage drops
that are given in table 15 or the voltage drops
are less than the voltage drops that are given
in table 15 . Go to step 6 in order to check the
engine.
c. The voltage drops are greater than the voltage
drops that are given in table 15 . The faulty
component should be repaired or replaced.
6. Rotate the crankshaft by hand in order to ensure
that the crankshaft is not stuck. Check the oil
viscosity and any external loads that could affect
the engine rotation.
a. If the crankshaft is stuck or difficult to turn,
repair the engine.
b. If the engine is not difficult to turn, go to step 7.
7. Attempt to crank the starting motor.
a. The starting motor cranks slowly.
Remove the starting motor for repair or
replacement.
b. The starting motor does not crank.
Check for the blocked engagement of the
pinion gear and flywheel ring gear.
Note: Blocked engagement and open solenoid
contacts will give the same electrical symptoms.
This document is printed from SPI². Not for RESALE
UENR0623