Robinson R66 - Page 809

96-11 Lead-Acid Battery Installations (continued)
B. Installing and Connecting Battery (continued)
1. b. If B237-8 battery was removed and B237-7 battery is being installed:
Remove G131-2 plate and install G131-4 plate as shown; verify security.
Carefully install B237-7 battery.
c. If battery being installed is same part number as battery removed: Verify
installation and security of parts. Carefully install battery.
2. Verify G131-2 or G131-4 plate just contacts top of battery (holes are slotted).
Adjust as required; verify security.
3. Verify negative (ground) cable is attached to airframe and routed as shown.
Adjust as required.
4. Verify battery terminal is clean and install positive cable on battery positive
terminal. Special torque bolt per battery decal and torque stripe per Figure 5-1.
Slide insulating nipple over attached terminal.
5. Verify battery terminal is clean and install negative (ground) cable on battery
negative terminal (B237-7 battery) or G131-5 terminal assembly (B237-8 battery),
routing negative (ground) cable as shown. Special torque bolt per battery decal
and torque stripe per Figure 5-1.
6. Install G248-8 cover assembly; verify security. Install auxiliary fuel tank per §
28-51, as required. Close baggage compartment door.
7. a. If B237-7 battery was removed and B237-8 battery was installed: Revise
Weight and Balance Record in R66 Pilot’s Operating Handbook (POH) Section
6 to incorporate the following data:
Subtract:
Item Weight Long. Arm Long. Moment Lat. Arm Lat. Moment
B237-7 Battery 42.00 lb 96.88 in. 4068.96 in.-lb -20.87 in. -876.54 in.-lb
Add:
Item Weight Long. Arm Long. Moment Lat. Arm Lat. Moment
B237-8 Battery 52.00 lb 96.88 in. 5037.76 in.-lb -21.73 in. -1129.96 in.-lb
b. If B237-8 battery was removed and B237-7 battery was installed: Revise
Weight and Balance Record in R66 Pilot’s Operating Handbook (POH) Section
6 to incorporate the following data:
Subtract:
Item Weight Long. Arm Long. Moment Lat. Arm Lat. Moment
B237-8 Battery 52.00 lb 96.88 in. 5037.76 in.-lb -21.73 in. -1129.96 in.-lb
Add:
Item Weight Long. Arm Long. Moment Lat. Arm Lat. Moment
B237-7 Battery 42.00 lb 96.88 in. 4068.96 in.-lb -20.87 in. -876.54 in.-lb
APR 2019 Chapter 96 Electrical System Page 96.4A