24-30
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EFFECTIVITY:
CIRRUS AIRPLANE MAINTENANCE MANUAL MODELS SR22 AND SR22T
01 Jan 2012
CAUTION: Do not allow bicarbonate of soda to enter battery cells or permanent battery
damage will result.
(d) If necessary, clean battery with a solution of bicarbonate of soda and clean water.
(e) Using contact cleaner and bristle brush, remove dirt and corrosion from battery terminals.
(f) Install battery into battery mounting tray, and position battery hold-down bracket to top of
battery.
(g) Serials 22-0002 thru 22-0497: Install bolts, washers, and cotter pins securing battery hold-
down bracket to battery mounting tray.
(h) Serials 22-0498 & subs, 22T-0001 & subs: Install bolts and washers securing battery hold-
down bracket to battery mounting tray. Torque bolts to 10 in-lb (1.1 Nm) greater than
accepted nut drag. Maximum torque not to exceed 45 in-lb (5.1 Nm).
(i) Serials w/ TCM battery: Inspect battery vent hose for damage, kinks, or obstructions.
(j) Serials w/ TCM battery: Position battery vent hose to battery and secure with clamp.
CAUTION: Connecting cables in reverse (positive to negative and negative to positive)
can cause serious damage to the electrical system. Connect the negative
cable last.
(k) Connect positive battery cable to positive terminal.
(l) Connect negative battery cable to negative terminal.
(m) To prevent corrosion, apply petroleum jelly to battery terminals.
(n) Install engine cowling. (Refer to 71-10)
(o) Reset BAT 2 circuit breaker.
(p) Verify operation of electrical system.
(3) Inspection/Check - Battery 1 Capacity
Note: Serials w/ TCM Battery: A fully charged battery is considered serviceable if it
meets 80% of the 30 minute emergency capacity rating.
Serials w/ Concorde Battery: A fully charged battery is considered serviceable if it
meets 85% of the nominal rated capacity (C1) shown on the label.
(a) Acquire necessary tools, equipment, and supplies.
(b) Verify ignition switch is in OFF position and remove the key.
(c) Set BAT 1, BAT 2, and AVIONICS switches to OFF positions.
(d) Pull BAT 2 circuit breaker.
(e) Remove battery 1. (Refer to 24-30)
(f) Perform capacity test as instructed by the manufacturer.(Refer to 05-10)
(g) If battery fails capacity test, replace battery.
(h) Install battery 1. (Refer to 24-30)
(i) Reset BAT 2 circuit breaker.
(4) Inspection/Check - Battery 1 Charging - Serials w/ TCM Battery
If the airplane is parked for long periods of time, the battery may become discharged. The bat-
tery may be recharged using a constant-voltage charger.
Description P/N or Spec. Supplier Purpose
24-Volt Battery Capacity Tester - Any Source Test battery condition.
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