Battery System - Thrush Aircraft S2RHG-T65 TURBO THRUSH Maintenance Manual

THRUSH AIRCRAFT, INC – MODEL S2RHG-T65 TURBO THRUSH
D. Close the clamp hinge over the T-bolt. Check with a mirror to make certain the
clamp groove fully captures both the flange on the quick-disconnect adapter and
the flange on the starter-generator around its entire circumference.
E. When the clamp is properly positioned and the hinge and T-bolt are closed, tighten
the T-bolt nut to a torque of 70 inch pounds. Tap circumference of clamp lightly
with plastic/rudder mallet. Re-torque T-bolt nut to 70 inch pounds and repeat until
you achieve 70 inch pound of torque without nut moving.
F. Connect the electrical leads to the starter-generator as previously marked.
G. Secure the upper aft engine cowling and connect the batteries. Run the engine at
idle speed for at least two minutes. Shut down the engine and recheck the quick-
disconnect clamp for proper torque.
TROUBLE
Battery fails to
hold charge
Battery will not
come up to full
charge
Battery
consumes water
rapidly
Electrolyte runs
out drain tube
Battery
discharged
Effective: 05/05/04
AIRCRAFT MAINTENANCE MANUAL
TROUBLESHOOTING CHART

BATTERY SYSTEM

PROBABLE CAUSE
Battery defective
Charging rate to low
Charging rate too high
Electrolyte level too high
Excessive charging rate
Vent caps loose or
broken
Standing too long
Equipment left on
Short circuit in wiring
Charging rate too high
REMARKS
Replace battery
Check voltage regulator and adjust to
27.5± .2 VDC
Check voltage regulator adjust to 27.5
±.2
Remove excess electrolyte & adjust
specific gravity
Check voltage regulator for correct
voltage
Tighten or replace caps
Remove battery and recharge
Remove battery and recharge
Check wiring and correct
Adjust voltage regulator to 27.5±.2
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