Cirrus SR22 User manual

CIRRUS AIRPLANE MAINTENANCE MANUAL MODEL SR22
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DISTRIBUTION
1. DESCRIPTION
This section describes that portion of the oil system which is used to conduct oil from and to the engine.
These items include the oil filter and oil cooler. Refer to Chapter 12, Servicing for approved engine oil spec-
ifications and servicing procedures. (Refer to 12-10)
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2. MAINTENANCE PRACTICES
A. Oil Filter
(1) Removal - Oil Filter
(a) Acquire necessary tools, equipment, and supplies.
(b) Remove engine cowling. (Refer to 71-10)
(c) Remove safety wire securing oil filter to engine.
(d) Using strap wrench, remove oil filter from engine.
(e) Remove oil filter from airplane.
(2) Installation - Oil Filter
(a) Acquire necessary tools, equipment, and supplies.
(b) Fill filter with approved oil and coat seal with oil. (Refer to 12-10)
(c) Using strap wrench, install oil filter. Torque filter to 18 - 20 ft-lb (24.4 - 27.1 Nm).
(d) Install safety wire securing oil filter to engine.
(e) Install engine cowling. (Refer to 71-10)
Description P/N or Spec. Supplier Purpose
Strap Wrench GA340 Snap-On Tools
Kenosha, WI
Oil filter removal.
Description P/N or Spec. Supplier Purpose
Strap Wrench GA340 Snap-On Tools
Kenosha, WI
Oil filter removal.
Safety Wire - Any Source Safetying.

CIRRUS AIRPLANE MAINTENANCE MANUAL MODEL SR22
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B. Oil Cooler (See Figure 79-201)
(1) Removal - Oil Cooler
(a) Remove engine cowling. (Refer to 71-10)
(b) Drain engine oil. (Refer to 12-10)
(c) Remove oil pressure sensor. (Refer to 79-30)
(d) Remove oil temperature sensor. (Refer to 79-30)
(e) Remove bolts, washers, and nuts securing oil cooler to engine baffling.
(f) Remove nuts and washers securing oil cooler to engine.
(g) Remove oil cooler and gaskets from mounting studs on engine.
(2) Installation - Oil Cooler
(a) Position new gaskets to mounting studs on engine.
(b) Position oil cooler to engine and secure with washers and nuts. Torque upper nuts and
lower forward nuts to 22.9 - 27.1 ft-lb (31.0 - 36.7 Nm). Torque lower aft nut to 15.0 - 18.3
ft-lb (20.3 - 24.8 Nm).
(c) Install bolts, washers, and nuts securing oil cooler to engine baffling.
(d) Install oil temperature sensor. (Refer to 79-30)
(e) Install oil pressure sensor. (Refer to 79-30)
(f) Replenish engine oil. (Refer to 12-10)
(g) Install engine cowling. (Refer to 71-10)
(3) Approved Repairs - Oil Cooler Mounting Flange Weld (See Figure 79-202)
CAUTION: Any sheet metal repairs require that the base material strength of that repair be
developed in accordance with FAA AC 43.13-1B.
Cracks along the oil cooler mounting flange may occur due to an overly-tight fit between the
mounting flange on the lower left aft closeout baffle and the oil cooler mounting flange.
(a) Remove key from ignition switch.
(b) Remove upper engine cowling. (Refer to 71-10)
(c) Disconnect battery. (Refer to 24-30)
WARNING: If oil cooler mounting flange has any cracks that have spread into the
oil cooler body, replace oil cooler.
(d) Inspect oil cooler mounting flange for cracks. If required, stop drill all cracks in oil cooler
mounting flange and weld cracks in accordance with FAA AC 43.13-1B or with FAA
approved practices.
(e) Connect battery. (Refer to 24-30)
(f) Install upper engine cowling. (Refer to 71-10)
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Figure 79-201
Oil Cooler Installation
SR22_MM79_2144
LEGEND
1. Oil Cooler
2. Gasket
3. Bolt
4. Washer
5. Nut
1
2
2
3
4
4
4
5
5
5
Torque lower aft nut to 15.0 - 18.3 ft-lb
(20.3 - 24.8 Nm).
NOTE
Torque upper nuts and lower forward nuts
to 22.9 - 27.1 ft-lb (31.0 - 36.7 Nm).

CIRRUS AIRPLANE MAINTENANCE MANUAL MODEL SR22
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Figure 79-202
Approved Repairs - Oil Cooler Mounting Flange Weld
SR22_MM79_2045
NOTE
Use stop drill technique in accordance with
FAA AC 43.13-1B to prevent crack in oil cooler
mounting flange from spreading further.
If oil cooler mounting flange has any cracks
that have spread into the oil cooler body,
replace oil cooler.
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