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MARINE PROPELLER J PROP SDB Use And Maintenance Handbook

Variable pitch propellers
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SDB
VARIABLE PITCH PROPELLERS
Use and maintenance handbook

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Summary of Contents for MARINE PROPELLER J PROP SDB

  • Page 1 VARIABLE PITCH PROPELLERS Use and maintenance handbook...
  • Page 2 J PROP Variable pitch propeller Thank you for choosing a JPROP as the feathering propeller for your boat. This manual will provide you with the technical information needed to install, adjust and maintain your JPROP . • JPROP ’s patents, combined with the experience and machining skills of COBER, a fully integrated CNC specialist, are your assurance that JPROP ’s performance meets your expectations.
  • Page 3 INDEX Sect. 1 - PROPELLER INSTALLATION ON SAILDRIVE ® SPLINE page 2 Sect. 2 - PROPELLER REMOVAL FROM SAILDRIVE ® SPLINE page 9 Sect. 3 - PITCH ADJUSTMENT page 13 Sect. 4 - REGULAR MAINTENANCE page 18 Sect. 5 - SPARE PARTS LIST page 22 Sect.

  • Page 4: Section 1 - Propeller Installation On A Saildrive ® Spline

    Section 1 - PROPELLER INSTALLATION ON A SAILDRIVE ® SPLINE To install your JPROP on an SD spline please follow these steps: 1 - remove zinc anode using Allen key type B ; remove bronze ring (anode support) using Allen key type C (see table 1 - section 2 ). controdado lock-nut 2 - Insert Allen key D into internal lock-nut and turn anti-clockwise until...
  • Page 5 3 - remove the indicated parts: spacer, shock absorber, small keys and morse cone from their protection. Spacers 10.10 code 10.11 code 10.12 code 10.13 code 10.14 SD Lombardini SD 20/31 SD 40/50 SD Volvo 4 - check that the spacer corresponds to the type of shaft fitted to the Sail Drive leg.
  • Page 6 1 ÷ 2 mm 5 - fit the spacer, the shock absorber and the morse cone on to the propeller shaft. Check that the shock absorber sticks out by 1-2 mm from the surface of the propeller shaft. 6 - apply thread-locking adhesive (Locktite) to the thread of the prop shaft. With a spanner (30 mm) screw the morse cone tightly right to the end of the shaft thread.
  • Page 7 7 - check that the spaces for the little keys on the shock absorber and the morse cone are aligned to allow for full locking. If they are aligned, go to fig 10. If they are not aligned, go to fig 8. fig.
  • Page 8 9 - apply thread-locking adhesive (Locktite) to the thread, and tighten with the 30 mm spanner until the spaces are aligned, as shown in the figure. fig. 10 10 - fit the little keys into their seats, checking that they are fully inserted.
  • Page 9 11 - fit the propeller body, making sure that you position and insert the pins into the rubber shock absorbers. 12 - using Allen key A tighten internal propshaft-nut applying a torque-load of 70 ft/lbs or 10 kgm.
  • Page 10 controdado lock nut 13 - apply threadlocking adhesive (LOCKTITE) to the threads. Insert and firmly tighten the lock-nut (Allen key type D with an extension of 12" or 30 cm). 14 - followings instructions from section 3 (2 - 9) set the pitch for your JPROP. 15 - reinstall bronze ring (operat.

  • Page 11: Section 2 - Propeller Removal From Saildrive ® Spline

    Section 2 - PROPELLER REMOVAL FROM SAILDRIVE ® SPLINE. To remove your JPROP from SD spline please follow these steps: 1 - remove zinc-anode using Allen key type B , remove bronze ring (anode support) using Allen key type C (see table 1 - section 2). controdado lock nut 2 - insert Allen key type D into internal lock-nut and turn anti-clockwise until...
  • Page 12 4 - using Allen key A loosen internal propshaft-nut (turn it anti- clockwise), this will probably require a torque-load of aprox. 80 ft/lbs or 12/15 kgm. 5 - when nut idles remove prop from spline.
  • Page 13 6 - remove the little keys from their seats. 7 - with a 30 mm spanner unscrew the morse cone from the thread of the shaft.
  • Page 14 8 - remove themorse cone, the shock absorber and the spacer from the prop shaft. TABLE 1 Allen keys to be used for installation and removal of JPROP prop type Allen key A Allen key B Allen key C Allen key D body dia 63 SDB 83 SDB...

  • Page 15: Section 3 - Pitch Adjustment

    Section 3 - PITCH ADJUSTMENT It’s possible to adjust the pitch anytime following these procedures: 1 - remove the zinc anode and 2 - remove the bronze «pitch-lock» the bronze ring (anode support) flange with the Allen keys B and C (see page 6).
  • Page 16 5 - Turn the ogival nose towards 6 - release the ogival nose the «R» or «L» side depending on 7 - make sure that the reference the type of engine (rightway or line «0» matches the desire notch. leftway) and reach the notch of 8 - make sure that the ogival nose the desired pitch.
  • Page 17 Propeller pitch The table gives the real value of the increment of the blades’ angle of attachment expressed in degrees per notch and according to the type of propeller. Propeller body Ø Increase ( ° ) 2,613 2,348 Calculation of the slip: The following tables give the theoretical value of the pitch.
  • Page 18 Calculation of the slip: The following tables give the theoretical value of the pitch. To obtain the real value multiply the datum being examined by a reduction factor of 0.55. E.g.: propeller body 83, Ø 19", adjusted to the 10th step. Theoretical pitch *25.926 "/rot.
  • Page 19 Pitch adjustment: notch pitch maximum maximum R.P.M. speed...

  • Page 20: Section 4 - Regular Maintenance

    Section 4 - REGULAR MAINTENANCE The JPROP propeller needs very little maintenance. Periodic maintenance, as described below, however will help you achieve best performance, both in efficiency as well as durability. Regular maintenance. Periodically replace the zinc-anode in order to avoid damage due to cathodic corrosion.
  • Page 21 Lubrication. 1 - unscrew the Allen screw under the red dot (Allen key D - table 1). 2 - Fill the propeller hub with marine grease using the grease-gun (grease suggested: TECNOLUBE Polimar 400 or SHELL Nautilus SRS 2000). 3 - replace the Allen screw in the propeller and seal with a silicon sealer. Non-routine maintenance ( see section 6 page 27 ) For any other problem contact the nearest agent or the manufacturer.
  • Page 22 SUMMARY OF ROUTINE MAINTENANCE - GREASE the propeller at least once a year - REPLACE the zinc anode at least once a year - DO NOT PAINT, and keep clean, the contact surfaces between propeller, zinc anode support and zinc anode. - DO NOT PAINT the contact surfaces between the body and the blades with antifouling paint or anything else.
  • Page 23 NOTE OF ROUTINE MAINTENANCE DATE DESCRIPTION...

  • Page 24: Section 5 - Spare Parts List

    Section 5 - SPARE PARTS LIST Propeller hub Ø 63 - SDB 10.30 10.10 0.20 0.10 10.40 0.21 JP 29 SDB 3.55 5.01 2.05 2.10 9.20 7.30...
  • Page 25 Spare parts list for propeller hub Ø 63 - SDB Ref. Description Codex JP Hub sector 63.00.30 0,10 Allen screw UNI 5927 M6x8 pc A4 63.00.10 0.20 Allen screw TCE UNI 5931 M6x20 A4 63.00.20 0.21 Washer DIN 7980 M6 A4 63.00.21 Conical junction 63.01.00...
  • Page 26 Propeller hub Ø 83 - SDB 10.30 10.10 0.20 0.10 10.40 0.21 JP 29 SDB 3.55 5.01 2.05 2.10 9.20 7.30...
  • Page 27 Spare parts list for propeller hub Ø 83 - SDB Ref. Description Codex JP Hub sector 83.00.30 0,10 Allen screw UNI 5927 M6x8 pc A4 83.00.10 0.20 Allen screw TCE UNI 5931 M6x20 A4 83.00.20 0.21 Washer DIN 7980 M6 A4 83.00.21 Conical junction 83.01.00...
  • Page 28 Section 5/a - SPARE PARTS - ENGINE TYPE REFERENCE Nut with morse cone ref 11 – type of thread Type of leg Thread JP Code 11.11 Volvo SD 110-120-130 M 16 x 2 83.11.11 11.11 Yanmar SD 20/31 M 16 x 2 83.11.11 11.12 Yanmar SD 40/50...

  • Page 29: Section 6 - Non-Routine Maintenance

    ANY INTERVENTION BY 3 rd PARTIES MUST BE APPROVED AND AUTHORIZED BY MARINE PROPELLER SRL IN WRITING. Thus we consider ourselves relieved of any responsibility for damage caused to the propeller by non-routine interventions carried out by the customer or unauthorized third parties.
  • Page 30 n° 1 notch n° 1 notch 2 - 3 - moving the pinion by one notch, turn the hub anti-clockwise.
  • Page 31 4 - 5 - close the propeller aligning the three sections with the punched holes as illustrated in figure 5 ATTENTION! - Non-routine maintenance must be carried out by the manufacturer or by authorized workshops.
  • Page 32 NOTE: Please take note on these pages of the pitch adjustments made as well as dates of last servicing, lubrication, anode inspection.
  • Page 33 NOTE:...
  • Page 34 NOTE:...
  • Page 35 Eliche autorientanti a passo variabile Variable pitch feathering propellers Tagliando di collaudo e garanzia - Testing and warranty coupon ELICA TIPO - PROPELLER TYPE 63-A o 83-B o 93-C o 116-D o 145-E o SDA o SDB o Bipala Tripala Quadripala Two-blades o Three-blades o...
  • Page 36 Tel. : +49 2 21593042 - Fax : +49 2 21594298 www.groever-propeller.de e-mail: groever@netcologne.de Italy: MARINE PROPELLER s.r.l. • Via Olona, 9 - 21054 Fagnano Olona (VA) - Italy - tel +39 0331 614085 (r.a.) - fax +39 0331 612668 • www. marinepropeller.it - e-mail: eleonora@jprop.it...

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