Battery Service; Oxygen System Servicing; Key Fob Battery Replacement - Cirrus SR22 Pilot Operating Handbook

S 8: H
ECTION ANDLING AND
S
ERVICING

Battery Service

The aircraft is delivered with a maintenance-free, rechargeable, sealed, lead
acid primary battery. Battery #1 is mounted to the forward right side of the
firewall and access is gained by removing the upper cowl. The battery vent
is connected to an acid resistant plastic tube that vents gases and electrolyte
overflow overboard.
A capacity check must be performed at initial 24 months or 1200 hours in
service and then every 12 months or 200 hours thereafter. Refer to AMM
Chapter 5: Time Limits And Maintenance Checks, Overhaul and Replace-
ment Schedule.
Battery #2 is a maintenance-free, rechargeable, sealed, lead acid battery.
Mounted in the empennage just aft of bulkhead 222, there is no need to
check the specific gravity of the electrolyte or add water to these batteries
during their service life. Refer to AMM Chapter 5: Time Limits And Main-
tenance Checks, Overhaul and Replacement Schedule.
The external power receptacle is located on the left side of the fuselage just
aft of the firewall. Refer to AMM Chapter 24: Electrical Power, External
Power for servicing procedures.

Oxygen System Servicing

To preclude the possibility of fire by spontaneous combustion, oil,
grease, paint, hydraulic fluid, and other flammable material
Service the oxygen system per the appropriate revision of the Precise Flight
Instructions for Continued Airworthiness for the Cirrus SR22/SR22T
Built-In Oxygen System, STC number SA01708SE, document number
102NPMAN0003.

Key Fob Battery Replacement

Serials w/ Convenience Lighting:
If the key fob does not function properly at normal range, the battery
should be replaced. To replace the key fob battery:
To Replace Key Fob Battery
1. Using a thin flat object, pry the top and bottom halves of the key fob
apart.
2. Remove and replace the battery with a new CR2032, or equivalent,
3-volt battery. Install the new battery with the positive side (+) facing
up, away from the circuit board.
3. Press the top and bottom halves of the key fob back together.
8-18
S
ERVICING
• CAUTION •
should be kept away from oxygen equipment.
C D
IRRUS ESIGN
SR22
P/N 13772-006
Reissue A