1.2 General Specification (Instruction)
A. This instruction is written in the English language and follows guidelines outlined in ATA 100 standards.
Principle units of measure used in this instruction are U.S. units with International System of Units (SI) in
parentheses.
B. The R1224, R1224B, and R1224J regulator models are considered herein.
C. All aircraft, rotorcraft, or engine applications are limited to the holder of the TC, STC, PMA or TSO and only at
the date of that document publication or revision.
D. Only approved, competent persons with the necessary skills may do maintenance tasks described in this
instruction. This may include a certied pilot doing “preventative maintenance” as dened in FAR 43, Appendix
A, paragraph C with guidance from AC 43-13-1B and AC 43-13-2B or latest change.
E. This instruction describes maintenance on components as they are installed on aircraft and tasks that should
be accomplished in a properly equipped service facility.
F. Maintenance tasks and subtasks are referenced in the instruction but will have no specic identication
numbers.
G. The instruction contains: Description of operation, Troubleshooting, Instruction for Continued Airworthiness
(ICA) and Maintenance information along with part numbers required for basic maintenance tasks.
H. Changes and updates to this instruction can be found at www.PlanePower.aero*. Revisions will be tracked and
recorded in the Record of Revisions section of this document.
* Plane-Power is a trademark of Hartzell Engine Technologies LLC.
1.3 Measurements
The measurements given in this instruction are taken from original manufacturing drawings.
1.4 Units of Measure
A. SI Units
A Ampere
A ∙ h Ampere hours
g Gram
N Newton
N ∙ m Newton meter
V Volt
°C Degree Celsius
Ω Ohm
W Watt
Hz Hertz
m Meter
cm Centimeter
kg Kilogram
R1224 Regulator
Installation Instruction
24-30-01 12-1001
Page: 1-2 Rev. M: 01 Dec. 2021
© 2021 - Hartzell Engine Technologies - All rights reserved
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