Robinsons R66 - 12-70 (Engine) Compressor Rinse and Wash

12-70 (Engine) Compressor Rinse and Wash
Refer to R66 Illustrated Parts Catalog (IPC) Figure 71-9.
CAUTION
See RR300 Series Operation and Maintenance Manual (OMM)
requirements for compressor rinse and wash intervals.
CAUTION
Always perform compressor rinse or wash with sufficient
clearance for possible rotor system rotation.
1. Remove engine cowling per § 53-21.
2. Open access door and remove (engine) compressor fluid-delivery tube cap.
3. Refer to RR300 Series Operation and Maintenance Manual (OMM) for equipment and material
requirements. Operate compressor cleaning system per manufacturer's instructions.
4. Connect appropriate cleaning system hose to delivery tube.
5. Refer to RR300 Series OMM for compressor rinse and wash procedures.
To motor engine without ignition system:
a. Release rotor brake.
b. Turn BATTERY switch ON.
c. Verify fuel cutoff pulled OFF. Verify igniter (key) switched OFF.
d. Verify area is clear.
e. Close throttle.
f. Push and release start button as required to maintain N1 speed for required interval.
6. Disconnect cleaning system hose from delivery tube. Install delivery tube cap and standard
torque per § 20-32. Close access door.
7. Refer to RR300 Series OMM for returning engine to service.
To perform ground run:
a. Refer to R66 Pilot's Operating Handbook (POH) Section 4 for run-up and shutdown
procedures.
8. Install engine cowling per § 53-21.
MAY 2015 Chapter 12 Servicing Page 12.17