CIRRUS AIRPLANE MAINTENANCE MANUAL MODELS SR22 AND SR22T
24-30
Page 17
Serials w/o Perspective Avionics
EFFECTIVITY:
B. Alternator 2 - Serials w/o Perspective Avionics (See Figure 24-303)
(1) Removal - Alternator 2
(a) Set BAT 1, BAT 2, and AVIONICS switches to OFF positions.
(b) Remove engine cowling. (Refer to 71-10)
(c) Disconnect battery 1. (Refer to 24-30)
(d) Identify and disconnect wires from alternator terminals.
(e) Serials 22-1602, 22-1821, 22-1840, 22-1863 & subs: Remove bolts and washers securing
blast tube bracket to alternator.
(f) Remove nuts and washers securing alternator to engine. Remove alternator from airplane.
(g) Discard old gasket and remove residual gasket material from alternator and engine.
(2) Disassembly - Alternator 2
Note: To facilitate removal of shear coupling assembly from coupling pins on alter-
nator, tightly grip and rock spline of shear coupling assembly back and forth
until loosened.
(a) Pull shear coupling assembly from alternator.
(3) Assembly - Alternator 2
(a) Acquire necessary tools, equipment, and supplies.
(b) Position and align shear coupling assembly to alternator pins. Gently tap shear coupling
assembly with mallet until coupling is seated onto pins.
(4) Installation - Alternator 2
(a) Acquire necessary tools, equipment, and supplies.
(b) Place alternator and new gasket into position. Hand tighten washers and nuts in an alter-
nating pattern securing alternator to engine.
(c) Initial torque nuts to 20 in-lb (2.3 Nm) in an alternating pattern. (See Figure 20-602)
(d) Final torque nuts to 60 - 70 in-lb (6.8 - 7.9 Nm) in an alternating pattern. (See Figure 20-
602)
(e) Serials 22-1602, 22-1821, 22-1840, 22-1863 & subs: Position and secure blast tube
bracket onto RH side of alternator with bolts and washers.
CAUTION: Cable shielding could be installed to the Power and/or Field wire harness. If
installed, attach cable shielding wire(s) to ground terminal on alternator. Do
not install cable shielding wire(s) to AUX power terminal.
Description P/N or Spec. Supplier Purpose
Mallet - Any Source Tap shear coupling onto shaft
coupling pins.
Description P/N or Spec. Supplier Purpose
Extension,
Knurled, 6"
TMXK60 Snap-on Tools
Kenosha, WI 53141
877-762-7664
Extend ratchet.
Wrench, Vac-
uum Pump
AVPW716 Snap-on Tools
Kenosha, WI 53141
877-762-7664
Torque nuts.
15 Dec 2014
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