V-Belt - Test; Charging System - Test - Perkins 1104E Systems Operation Testing And Adjusting

SENR9977
Never disconnect any charging unit circuit or bat-
tery circuit cable from the battery when the charg-
ing unit is operated. A spark can cause an explo-
sion from the flammable vapor mixture of hydro-
gen and oxygen that is released from the elec-
trolyte through the battery outlets. Injury to per-
sonnel can be the result.
The battery circuit is an electrical load on the charging
unit. The load is variable because of the condition of
the charge in the battery.
NOTICE
The charging unit will be damaged if the connections
between the battery and the charging unit are broken
while the battery is being charged. Damage occurs
because the load from the battery is lost and because
there is an increase in charging voltage. High voltage
will damage the charging unit, the regulator, and other
electrical components.
The correct procedures to test the battery can be
found in the manual that is supplied by the OEM.

V-Belt - Test

Table 8
Size of Belt
1/2 13.89 mm (0.547 Inch)
(1)
Initial Belt Tension refers to a new belt.
(2) Used Belt Tension refers to a belt that has been in operation for 30 minutes or more at the rated speed.
1. Check the belts for wear and check the belts for
damage. Belts must always be changed as a pair.
2. Fit a suitable Burroughs gauge at the center of
the longest free length of the belt and check
the tension on both belts. Check and adjust the
tension on the tightest belt. To adjust the belt
tension, see Disassembly and Assembly Manual,
"Alternator - Install".
i01955101
Belt Tension Chart
Width of Belt
Measure the tension of the belt that is farthest from the engine.
Gauge Reading
Initial Belt Tension
(1)
535 N (120 lb)

Charging System - Test

The condition of charge in the battery at each
regular inspection will show if the charging system
is operating correctly. An adjustment is necessary
when the battery is constantly in a low condition of
charge or a large amount of water is needed. There
are no adjustments on maintenance free batteries.
A large amount of water would be more than one
ounce of water per cell per week or per every 100
service hours.
Testing and Adjusting Section
Used Belt Tension
(2)
355 N (80 lb)
i02270879
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