Robinson R66 - Oil Temperature Sender

79-20 Oil Tank Assembly (continued)
B. Installation
1. Torque check associated oil cooler and engine unions per § 20-33.
2. Refer to Figure 79-3. Position G689-1 tank assembly in helicopter and install
hardware securing tank to F384-3 angles. Verify security.
3. Install nuts securing tank to firewall and special torque nuts per § 20-33.
4. Remove caps and connect F723-1, F723-3, and F723-4 line assemblies to tank
and associate components. Using backup wrench, special torque line nuts per §
20-33.
5. Torque stripe fittings per Figure 5-1.
6. Connect airframe harness to MS28034-1 oil temperature sender. Verify security.
7. Secure A729 tube to tank scupper drain using D277-8 clamp; verify security.
8. Service engine oil per § 12-60.
9. Air-conditioned ships: Torque check nuts at firewall per § 20-33. Remove caps and
connect G794-2 & G794-3 hose assemblies to G810-1 & G811-1 line assemblies.
Using backup wrench, special torque hose nuts per § 20-33. Charge system per §
12-81.
10. Install tailcone cowling assembly per § 53-23.
79-21 Oil Temperature Sender
A. Removal
1. Drain engine oil per § 12-60.
2. Remove tailcone cowling assembly per § 53-23.
3. Refer to Figure 79-3. Disconnect airframe harness from MS28034-1 oil
temperature sender.
4. Remove sender from G689-1 tank assembly; discard packing. Tape tank opening.
B. Installation
1. Refer to Figure 79-3. Install (new) packing on MS28034-1 oil temperature sender.
Remove tape, install sender in G689-1 tank, and special torque sender per § 20-33.
2. Connect airframe harness to sender; verify security.
3. Service engine oil per § 12-60.
4. Install tailcone cowling assembly per § 53-23.
Page 79.6 Chapter 79 Engine Oil System APR 2017