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SI-PAC-001
External alternator for ROTAX
ATA System: 24-30-00 External alternator
1) Planning information
"PAC" Service Instruction Documents provide detailed information on non-certified ROTAX
Aircraft Engine Parts and Accessories. Referenced parts and accessories are provided without
EASA certification or ASTM compliance. Certification / Compliance of referenced Parts and
Accessories must be completed by the aircraft OEM.
To obtain satisfactory results, procedures specified in this publication must be accomplished with
accepted methods in accordance with prevailing legal regulations.
BRP-Rotax GmbH & Co KG cannot accept any responsibility for the quality of work performed in
accomplishing the requirements of this publication.
1.1) Applicability
Refer to the latest issue of the relevant Illustrated Parts Catalog.
NOTICE
m
WARNUNG
1.2) Concurrent ASB/SB/SI and SL
None.
1.3) Reason
An external alternator is not included in the scope of delivery for 915 i Series aircraft engines. An
external alternator set part no. 887259 is available which includes brackets for 915 i Series gear-
box mounting.
1.4) Subject
External alternator for ROTAX
1.5) Compliance
NONE - For Information Only.
1.6) Approval
None.
1.7) Labor time and credit
Estimated labor hours:
Engine installed in the aircraft - - - labor time will depend on airframe installation and therefore no
estimate is available from the engine manufacturer.
1.8) Mass data
Change of weight - - - see section 3.1).
Moment of inertia - - - to be calculated by aircraft manufacturer.
1.9) Electrical load data
See Chapter 3.
08 February 2019
Initial Issue
Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.
SERVICE INSTRUCTION -
Engine Type 915 i (Series)
®
The external alternator is not a part of the Engine Type Design. The exter-
nal alternator has been tested and released by BRP-Rotax, but it is not
certified.
The correct function in conjunction with the entire system and the certifica-
tion of the external alternator is the responsibility of the aircraft manufactu-
rer and must be carried out jointly with the aircraft.
Engine Type 915 i (Series).
®
Current valid documentation see:
www.flyrotax.com
PAC
®
24-30-00
Page 1 of 21
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Summary of Contents for Rotax 24-30-00
- Page 1 To obtain satisfactory results, procedures specified in this publication must be accomplished with accepted methods in accordance with prevailing legal regulations. BRP-Rotax GmbH & Co KG cannot accept any responsibility for the quality of work performed in accomplishing the requirements of this publication.
- Page 2 Updates and current revisions can be downloaded for free. 1.12) Other Publications affected None. 1.13) Interchangeability of parts Not affected 08 February 2019 24-30-00 Initial Issue Page 2 of 21 Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.
- Page 3 Authorized Distributors or their inde- ® pendent Service Centers. 2.2) Company support information Any possible support by BRP-Rotax will be provided on request by ROTAX Authorized Dis- ® tributors or their independent Service Centers. 2.3) Material requirement and credit per engine...
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Page 4: Environmental Note
Environmental notes give you tips on environmental protection. NOTE: Indicates supplementary information which may be needed to fully complete or under- stand an instruction. 08 February 2019 24-30-00 Initial Issue Page 4 of 21 Copyright - BRP-Rotax GmbH & CO KG. All rights reserved. - Page 5 Fig. 1. Cyl. 1 Cyl. 2 Cyl. 3 Cyl. 4 1 External alternator 2 Positive terminal 3 Control wiring 03199 08 February 2019 24-30-00 Initial Issue Page 5 of 21 Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.
- Page 6 1/min. / rpm. n Propeller 1000 1500 2000 2500 rpm. propeller n Generator 2000 3000 4000 5000 6000 7000 8000 rpm. alternator 08 February 2019 24-30-00 Initial Issue Page 6 of 21 Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.
- Page 7 SI-PAC-001 SERVICE INSTRUCTION - Wiring dia- Fig. 3. External alternator gram 08255 08 February 2019 24-30-00 Initial Issue Page 7 of 21 Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.
- Page 8 In accordance with the regulations Nominal voltage 12 V Nominal current Maximum 300 mA Designation on wiring harness Not connected to the wiring harness. 08 February 2019 24-30-00 Initial Issue Page 8 of 21 Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.
- Page 9 Deflection of the V-belt must not exceed 6 mm (1/4”) with al load of 50 N NOTICE WARNUNG (11 lb) at center. 08 February 2019 24-30-00 Initial Issue Page 9 of 21 Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.
- Page 10 Procedure Loosen 2 hex. screws M8x20 along with lock washers and washers. Remove the tension bar underneath the external alternator. 08 February 2019 24-30-00 Initial Issue Page 10 of 21 Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.
- Page 11 2 Thrust washer 10.1/20/0.5 3 External alternator Step Procedure Loosen Allen screws M8x20 along with lock washers and remove the alternator bracket. 08 February 2019 24-30-00 Initial Issue Page 11 of 21 Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.
- Page 12 Clean and inspect propeller flange. Place V-belt pulley completely over propeller flange and insert the 9.5x675 V-belt loosely into the V-belt pulley. 08 February 2019 24-30-00 Initial Issue Page 12 of 21 Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.
- Page 13 Tightening torque 6 Nm (53.09 in. lb). Fig. 12 1 Allen screws M5x16 2 Lock washer M5 3 Pulley carrier 08 February 2019 24-30-00 Initial Issue Page 13 of 21 Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.
- Page 14 M8x20 and lock washers VHZ 8. Fig. 14. 1 Alternator bracket assy. 2 Allen screws M8x20 3 Lock washers VHZ 8 08 February 2019 24-30-00 Initial Issue Page 14 of 21 Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.
- Page 15 Place the V-belt in the V-belt pulley of the alternator. Fig. 16. 1 V-belt 9.5x675 2 Allen screw M8x20 3 Allen screws M6x50 08 February 2019 24-30-00 Initial Issue Page 15 of 21 Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.
- Page 16 Tightening torque M8: 22 Nm (194.7 in.lb). 3.4.6) V-belt tension See Chapter 3.3) Maintenance (Line) section 3.3.2) Adjust the V-belt tension. 08 February 2019 24-30-00 Initial Issue Page 16 of 21 Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.
- Page 17 3) using connectors and housing provided. Fig. 18 L = Terminal “L” IG = Terminal “IG” B = Terminal “B” 00335 08 February 2019 24-30-00 Initial Issue Page 17 of 21 Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.
- Page 18 (12 AWG). Fig. 20 10127 1 Connection socket 10126 2 Controller connector 1 Pin 2 2 Ground stud 08 February 2019 24-30-00 Initial Issue Page 18 of 21 Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.
- Page 19 1 Multimeter 2 Rectifier regulator A 3 Rectifier regulator B 4 Ground connections regulator A 5 Ground connections regulator B 08 February 2019 24-30-00 Initial Issue Page 19 of 21 Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.
- Page 20 ® In any case the original text in English language and the metric units are authoritative. 3.8) Inquiries Inquiries regarding this Service Instruction - PAC should be sent to the ROTAX Authorized Dis- ® tributor of your area.
- Page 21 Exploded views are not technical drawings and are for reference only. For specific detail, refer to the current documents of the respective engine type. 08 February 2019 24-30-00 Initial Issue Page 21 of 21 Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.