Figure 4-25. Balancer Installation - OH-23 Helicopter Engine Fan Assembly.

TM 55-4920-201-14

VIEW A

VIEW B

OH-23 (Prior to Series D) Engine Fan Assembly

OH-23 (Series D, F, and G) Engine Fan Assembly

1. Extension pilot plug

10. Counterweight (2523,

(2525, 7HELO53 kit)

7HEL053 kit)

2. Collar set screw

11. Coupling (2524,

3. Engine fan assembly

7HEL053 kit)

4. Lower coupling set

12. Collar (2527, 7HEL053

5. Coupling stop pin

kit)

6. Upper coupling set screw

13. Extension pilot plug

7. Counterweight set screw

(2526, 7HEL053 kit)

8. Arbor scale

9. Balancing Arbor (2516,

7HEL053 kit)

Figure 4-25. Balancer Installation - OH-23 Helicopter Engine Fan Assembly.

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