Tunnel Thruster Ref-568-01 Model S300-L.pdf

TUNNEL TIIRUSTER

MODEL S-300-L

SERIAL NOS. 86.000.435 AND 86.000.436

T. 0. NO.:

DATE ISSUED:

MANUFACTURED BY:

SCHOTTEL OF AMERICA, INC.

8375 N.W. 56TH STREET

MIAMI, FLORIDA, . 33166-4806

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SAFETY PROCEDURES

Before Operation

Make certain the operating area is clear of obstructions and personnel.

Keep excess grease, oil and other spillage from around exposed surfaces of the bow thruster unit.

During Operation

Always use the simple and fundamental rules of safety when operating this unit.

Do not perform maintanance on the unit while running.

After Operation

Make certain that the throttle is fully closed and the prime mover is properly secured.

Stop all operations when cleaning, adjusting or lubricating the unit.

Keep excess grease, oil and other spillage cleaned off the unit at all times.

When performing maintenance on the unit remember that due to size and weight of components, extreme care should be taken when moving, positioning, etc., to prevent personal injury as well as damage to components.

Use proper lifting procedures and proper equipment to lift, move and position components.

When maintenance procedures are terminated, take inventory of tools, shop cloths, etc., to ensure no foreign objects are inside the unit to cause potentially hazardous situations.

RECORD 0 F CHANGES

CHANGE DATE TITLE OR BRIEF ENTERED BY

No. DESCRIPTION i

SCHOTTEL TIJIIKEL BOW lliRUSTER

MODEL S-300-L

Schottel of America Contract No.

MILITARY SEALIFT COMMAliD

Contract No. N00024-85-2046

Date of Contract:

Hull No.: T-AGOS 13 No. 1123 T-AGOS 14 No . 1124

NAVSHIP~ I.D. NO •

TABLE OF CONTENTS

SECTION

GENE RAL INFORMATION

Introduction and Description .

General Arrangement Drawing • • • • Bow Thruster Description Lubrication Instructions • • • • • •

2 MAINTENANCE & TROUBLESHOOTING

PAGE

• • • • • • • • 1 -1

• 1-2

• • • • • • • • • ,_ 3 . . . . . . 1-4

Scheduled Maintenance Recommendations Troubleshooting Data Chart • • • • • • •

. . . . 2-1

• • • • • 2-2

3 SERVICE

Gearbox Removal • • • • • • • . . . . . . 3-1 Gearbox Installation • • • • . • • • • • 3-12

3-21 Drive Flange Seal Replacement Propeller Shaft Seal Replacement

4 PARTS LIST

General Arrangement Drive Flange Assembly Prop Hub Assembly Skeg Assembly • • • • Lower Gearbox Assembly

5 SPECIAL TOOLS

Prop Nut Wrench Prop Puller Plate

6 REFERENCE DATA

Articulated Shafts • • • • • Recommended Lubricants • • Schottel Group Companies •

. • • • • • • • • 3-24

. . . . . . . . 4-2

• • • • 4-4

• 4-6 . . . . . . . . 4-8

• 4-10

• • 5-1 . • • 5-2

• • • • • 6-1 . . . . . . 6-, 1

• • • • • 6-12

SECTION I

GENERAL INFORMATION

GENERAL INFORMATION

INTRODUCTION

This instruction Manual applies to the Type S-300-L Tunnel Thruster manufactued by Schottel of America, Inc., 8375 N.W. 56 Street, Miami, Florida 33166.

The Tunnel Thruster is a right-angle reduction gearbox designed for underwater operations and provides port-starboard thrust for slow speed maneuvering and docking applications.

The Thruster is designed to operated in either a clockwise or counter clockwise direction as selected by the controls, and must be fully submerged during operation. Operation in air must be limited to 60 seconds or less.

The only operator's maintenance required is to check the oil level of the lube oil tank on a daily basis.

DESCRIPTION

Manufacturer:

Part Number:

Operating Fluid:

Mounting:

Oil Operating Temp.:

Weight:

Lubrication:

Schottel of America, Inc.

S-300-L

Gear Oil EP

Gearbox bolted on Tunnel Flange

Max. 185° Fahrenheit, 85° Celsius

Approximately 4,300 Lbs.

(1,954 Kg), with propeller

External supply is required to maintain static head pressure on gearbox

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MIA'4fY ."TT MAIIMI PIOP'ULIION IOUIPMIN' .. I aM I , , l 0 I I • &

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APPLICUIU

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IIICI GENG>AL At?I?~NG[ MDJT Uti

CHAPTER I

SECTIOif 1-2

THI S MANUAL COVERS SCHOTTEL TUNNEL

BOW THRUSTER TYPE S-300-L

1-1 The bow thruster is driven by a prime mover to be rated 550 h.p. at 1200 r .p.m .

1-2 The bow thruster will give equal thrust to port and starboard

1-3 The propeller shaft taper is 1 to 10.

1-4 Propeller Information

Diameter:

Pitch: (mean) Number of Blades:

Blade Area Ratio :

51.18 inches (300 mm)

40.51 inches (1029 mm) . 617

1-5 A separate header oil tank is provided.

1-6 Tunnel Dimensions

Inside Diameter:

Length:

Steel Plate Thickness:

Bow Thruster Weight:

52.5

.75

1-3 inches inches inch lbs . ( approx.) ..

LUBRICATION INSTRUCTIONS

TO MAINTAIN VALIDITY OF THE GUARANTEE AND INSURE TROUBLE-FREE OPERATION, IT IS

IMPERATIVE THAT THE FOLLOWING INSTRUCTIONS BE FOLLOWED:

The transverse thruster unit must be completely filled with oil. A separate tank is supplied and must be mounted above the loaded v1ater line. All oil connections must be in accord~nce wi th lube oil system drawing.

c St/50°C 30-53

VISCOSITY

DIN C-LP49 DIN 51 517

COMPANY

AGIP Blasia 57

ARAL BG 24

BP

The load stage of the

Energol GR-XPG8 gearbox oil used must be above 12 of the FZG

CALTEX

Multipurpose Test AB .3/90 accor- Thuban LP 30 ding to DIN 59 354.

CASTROL

Alpha 21Z Alpha 31Z

CHEVRON

Non- Leaded Gear Compound 68

EXXON Spartan EP- 08

MOBIL Mobilgear 626

SHELL Omala 68

Multigear Lubricant EP80 TEXACO Rando HD 315

Check the oil level regu larly during the first few hours of operation. The oi l level will drop due to air trapped in the system; this makes periodic checks essential, as the addition of oil may be nece ss ary.

OIL CHANGE

As with most machine ry, the Schottel Bow Thruster unit has a breaking-in period, requir ing that the oil be changyd for the first time after 250 operating hours;

thereafter, the oil should be changed every 2500 hours or at least once a year .

1 - 4

SECTION 2

MAINTENANCE & TROUBLESHOOTING

DAILY .

MONTHLY

SEMI-ANNUALLY

ANNUALLY .

8 I -ANNUALLY

MAINTENANCE

RECOMMENDED MAINTENANCE SCHEDULE

Check oi l level in lube oil tank.

Perform visual check for oil leaks.

Check all fastenings.

Change oil.

Check propeller and propeller seals.

2 - 1

THRUSTER TROUBLESHOOTING DATA

PROBABLE CAUSE

TROUBLE (REF. SECTION 4) REMEDY

Banging Noise Debris in Thruster Tunnel Diver sent down to cl ear tunne 1

Excess Vibration Propeller Blade Damaged Remove propeller for repair

Oil Leak Defective Seal or O'Ring Locate defective part(s) (Visible) Dwg. SK-0035 - 7 ,. 8' 9 and rep l ace

Oil Leak (Loss of Defective Seal or O'Ring oil in tank, no Dwg . SK-0035 - 11 Locate defective part(s) visible signs of SK-0037 - 1' 5' 7 and replace leak) SK-0038 - 4' 8' 44, 40-42' 23

Defective Seal or O'Ri ng part(s) Water in Oil Dwg. SK-0035 - 11 Locate defective

SK-0037- 1, 5, 7 and replace

SK-0038 - 4, 8, 44,

40- 42, 23

Defective O'Ring, Loose Water Leak Fasteni ng Locate defective part(s)

Dwg . SK-0035 - 10' 1 and rep l ace

No Power Out-Put Defective Gears Remove defective part(s) Engine Operati ng r:Mg . SK- 0028 - 29' 34 and replace Normally

2 - 2

SECTION l

SERVICE

GEARBOX

REMOVAL

3-1

5CHOTTEL OF AMERICA. INC.

LOWER GEARBOX REMOVAL

I . PURPOSE:

To establish procedures for removal and reinstal l ation of the LOWER GEARBOX unit from Schottel's Type S-300-L Tunnel Thruster.

II. REFERENCED DRAWINGS:

The following drawings are referenced in these procedures for parts identification and torque specifications:

SK-0028 - General Arrangement SK-0029 - Drive Flange Assembly SK-0030 - Prop Hub Assembly SK-0031 - Skeg Assembly

III. TOOLS/EQUIPMENT/MATERIALS REQUIRED:

The following must be on hand to implement these procedures:

A. YARD SUPPLIED

1. Lifting Equipment

2. Metric Wrenches

3. Hydraulic Jack

4. Torque Wrench

5. Sealer - 11 Atmosit 11

, Loctite 11 Master Gasket Eliminator 11 or equivalent.

6. Loctite 11 271 11

7. Gear Puller

8. Metr ic Allen Wrenches

9. Snap Ring Pliers

B. S.O.A. SUPPLIED (With Thruster)

1. Propeller Nut Wrench: Drawing SK-0040

2. Threaded Rods , 3 each M20 x 8 11 lg; 3 each Nuts M20

3. Propeller Puller Plate: Drawing SK-0039

NOTE: Metric sizes used throughout .

3 - 2

DRAW Ill

CHECK

UGR

STRESS

~I l ' . \ I \ I \

I

@ SK-0

I

SCHOTTEL OF AMERICA INC.

HEAVY DUTY MARINE PR OPULSION EQUIPMENT

M I AM I, F l 0 It I D A

GENERAL ARRANGEMENT

SK-0028

3-3 l i

DRIVE FLANGE REMOVAL: (Ref. Drawing SK-0029)

NOTE: The following may be done with the Tunnel Thruster submerged:

1. Drain Oil - Remove plug found under VENT connection at thruster input flange.

2. Disconnect intermediate drive shaft from DRIVE FLANGE (3) and remove.

3. Remove drive flange SNAP RING (4).

4. Remove drive flange COVER PLATE (5).

5. Remove hex head BOLT (6), nylon WASHER (7), and steel flat

WASHER (7A).

6. Remove DRIVE FLANGE (3) using gear puller.

7. Remove SNAP RING (2) and SEALS (9).

3 - 4

. I

• Torque 180 ft. lbs.

•• Torque 100 tt.lbs.

o Locktite 271

SCHOTTEL OF

HEAVY DUTY MARINE

M I A M I , D~AW M

, r

I

AMERICA INC.

PRO P ULSION E QUIPM E NT

FLORIDA

CHECK DRIVE FLANGE ASSY.

UGft

I TAUS SK-0029

3 - 5

CAUTION: All procedures from this point MUST be done with TUNNEL

THRUSTER OUT OF THE WATER. --

PROPELLER REMOVAL: (Ref. Drawing SK-0030)

1. Remove CAP SCREW (5).

2. Remove PROP CAP (6).

3. Remove oil seal 0 1 RING (8).

4. Remove TAPWASHERS (2), if supplied, or remove lockwire, as applicable.

5. Remove HEX SCREWS (3).

6. Loosen PROP NUT (7) 2 turns using special wrench supplied.

Thread is LEFT HAND.

CAUTION: Do not remove prop nut at this time.

7. Install the 3 threaded rods supplied into prop hub.

8. Install the prop puller plate supplied and secure with supplied nuts.

9. Jack prop off taper using hydraulic jack. Heat hub i f necessary.

10. Remove PROP NUT (7) from prop shaft and remove prop from tunnel.

3 - 6

•Torque 47ft. lbs.

••Torque 200ft. lbs.

o Locktite 271

SCHOTTEL OF AMERICA INC.

HEAVY DUTY MARINI PR OPULSION IQUIPMENT

M I AM I, F L 0 R I D A

DIAW II

CHECK PROP HUB ASSY.

Ulill

ITRUS SK-0030

3-7

SKEG REMOVAL: (Ref. Drawing SK-0031)

1. Remove skeg flange BOLTS and LOCKWASHER (3,2).

2. Work SKEG FLANGE (4) up as high as possible using bolts removed as jacking bolts.

3. Remove o•RING (5).

4. Remove skeg fin BOLTS (3,2).

CAUTION: SKEG (9) is heavy and will fall when all bol ts are removed; support as required during disassembly.

5. Lower SKEG (9) and remove.

3 - 8

• Torque 54 ft. lbs.

oLocktite 271

SCHOTTEL OF

HEAVY DUTY MARINI

M I AM I,

DRAW M

L------14

AMERICA INC.

PROPULSION EQUIPMENT

FLORIDA

CHECK SKEG ASSY.

.IIi R

STRESS SK-003l

3-9

LOWER GEARBOX REMOVAL: (Ref. Drawing SK-0029)

CAUTION: Gearbox must be adequately supported by a chainfall at this point . The gearbox weighs approximately 1200 Lbs.

1. Remove NUTS (1).

2. Lower gearbox into tunnel by means of chainfall.

3. Remove gearbox from tunnel.

NOTE: It may be necessary to weld pad eyes inside tunnel to facilitate gearbox removal.

3 - 10

: I ' I

• Torque 180 ft. lbs.

•• Torque 100 ft. lbs.

o Locktite 271

SCHOTTEL OF

HEAVY DUTY MARl N E

M I AM I,

DllAWII

AMER I CA I NC.

PR OPULSION EQUIPMENT

FLORIDA

CHECK DRIVE FLANGE ASSY.

U Cil

STilES& SK - 0029

3-11

GEARBOX

INSTALLATION

3-12

CAUTION: Disassembly of the lower gearbox should not be attempted.

If repair is indicated, the gearbox exchange proqram maintained by Schottel for the covenience of its customers should be utilized . Contact Schottel of America, Inc.

for details.

A. GEARBOX INSTALLATION : (Ref. Drawing SK-0029)

NOTE: Thoroughly clean all mounting surfaces prior to reassembly .

1. Install new 0 1 RINGS (10, 11). Apply sealer on and around 0 1 Ring and sealing surfaces .

2. Lift gearbox into position, install NUTS (1) handtight;

do not tighten fully at this time.

NOTE: Leave chainfall in position.

3 - 13

I

• Torque 180 ft. lbs.

•• Torque 100 ft. lbs.

o Locktite 271

\ I

SCHOTTEL OF AMERICA INC.

HIAVY DUTY MARINI PROPULSION EQUIPMENT

M I AM I, F L 0 . I I) A

DIAWII

CHECK DRIVE FLANGE ASSY.

uu

STRESS SK-0029

3-14

B. SKEG INSTALLATION: (Ref. Drawing SK-0031)

1. Install new O'RINGS (1, 7) and seal flange with sealer.

2. Install BOLTS (3) using Loctite "271" . Torque as specified on drawing.

3. Install new O'RING (5) and seal with sealer.

4. Draw SKEG FLANGE (4) down to meet SKEG PLATE, install BOLTS (3) using Loctite "271", and torque as per drawing.

NOTE : Check that prop shaft is centered in tunnel before torquing nuts.

5. Remove NUTS (1) one at a time, coat threads with loct ite "271", and reinstall. Torque as per drawing.

6. Remove chainfall .

3 - 15

• Torque 54 ft. lbs.

oLocktite 271

SCHOTTEL OF

HEAVY DUTY MARINI

M I AM I,

DIAW II

AMERICA INC.

PROPULSION EQUIPMENT

FL O.IDA

CHECK SKEG ASSY.

EUil

IT flUS SK-0031

3-16

C. PROPELLER INSTALLATION: (Ref. Drawing SK-0030 )

NOTE: Thoroughly clean prop shaft, key, and inside of hub prior to assembly. Prop shaft to be blued .

1. Fit taper for minimum 80% contact.

2. Check clearance of PROPELLER KEY (9) in accordance with Drawing SK-0030 Detail A.

3. Insure that taper is clean and dry.

4. Install prop on shaft, slide up as far as it wi l l go, and take a reading of gearcase-to-prop hub clearance.

5. Take the chill off prop hub, heat to between 90° - 110° F.

NOTE: Heating not necessary in tropical areas.

6. Harden PROP NUT {7) with special wrench provided. Take another clearance reading as in Step 4, above . Reading should be . 020 11 minimum, preferabl y more .

7. Install TAP WASHERS (2), if supplied, and LOCKING BOLTS (3) .

Torque as per drawing and bend edges of tapwashers or safety wire bolt heads to lock in position, as appl icable.

8. Install new O'RING (8) on PROP CAP (6) and seal with sealer .

9. Pack PROP CAP (6) with grease or tallow and install us i nq CAP SCREWS (5) and new USIT RING (4). Torque as per drawinq .

3 - 17

• Torque 47 ft.lbs.

•• Torque 200 ft. lbs.

o Locktite 271

SCHOTTEL OF

HEAVY DUTY MARINI

M I AM I,

DIU Wit

CHECK

UiiR

IT lUll

3-18

AMERICA INC .

PROPULSION IQUIPMINT

fLOIIDA

PROP HUB ASSY.

SK-0030

D. DRIVE FLANGE INSTALLATION: (Ref. Drawing SK-0029)

1. Install new SEALS (9) and SNAP RING (2 ).

2. Install DRIVE FLANGE (3) using HEX HEAD BOLT (6) and new NYLOC WASHER (7) . Install steel flat WASHER (7A) and torque as per drawing.

3. Install drive flange COVER (5) using new o•RING (8).

4. Install SNAP RING (4).

5. Reconnect intermediate drive shaft .

6. Fill gearbox with specified oil through head tank.

7. Thoroughly inspect all mounting surfaces for oil leaks, i.e . : skeg and skeg flange, lower gearbox mounting flange and dr ive flange .

8. Submerge tunnel thruster, test run .

3 - 19

I

• Torque 180ft. lbs.

•• Torque 100 ft. lbs.

o Locktite 271

·[jj SCHOTTEL OF HIAVY DUTY MARl Nl

M I A M I, DRAW •

I

~ I

I I ,..------::~,., I I

AMERICA INC .

PR OPULSION IQUIPMIN T

FLO R IDA

CMECK DRIVE FLANGE ASSY.

fUfl snua SK-0029

3-20

DRIVE FLANGE SEAL REPLACEMENT

3-21

DRIVE FLANGE SEAL REPLACEMENT: (Ref. Drawinq SK-0032)

NOTE: The following may be done with the Tunnel Thruster submerged:

1. Drain Oil - Remove plug found under VENT connection at thruster input flange.

2. Disconnect intermediate drive shaft from DRIVE FLANGE (2) and remove.

3. Remove drive flange SNAP RING (3).

4. Remove drive flange COVER PLATE (4).

5. Remove hex head BOLT (5), nylon WASHER (6) and steel flat

WASHER (6A).

6. Remove DRIVE FLANGE {2) using gear pul ler.

7. Remove SNAP RING (1) and SEALS (9).

8. Remove SEALS (8) and replace with new seals .

9. Insta ll SNAP RING (1).

10. Install DRIVE FLANGE (2) using HEX HEAD BOLT (5) and new NYLOC WASHERS (6). Install flat steel WASHER (6A) and torque as per drawing.

11. Install drive flange COVER PLATE (4) using new O'RING (7).

12. Install SNAP RING (3).

13. Reconnect intermediate drive shaft.

14. Fill gearbox with specified oil through head tan k.

15. Inspect for oil l eaks and test run thruster.

•Torque 100 ft.lbs.

oLocktlte 271

I·

SCHOTTEL OF AMERICA INC.

HI A V Y DUTy' MAR I HI P R 0 P U LSI 0 H I QUIP MINT

M I AM I, f l 0 R I D A

IIAW•

DRIVE FLANGE

UCR

IT lUI SK-0032

3-23

PROP SHAFT SEAL REPLACEMENT

I;

PROP SHAFT SEAL REPLACEMENT

NOTE: The following must be done with Thruster out of the water.

1. Drain Oil - Remove plug found under VENT connection at thruster input flange .

2. Remove propeller in accordance with procedures out lined on page 3- 6 of this manual.

3. Remove CAP SCREWS (2) .

4. Remove COVER (1), SEALS (7) and SEAL RUNNING RING (4) as an assembly using 3 Jacking Bolts M12 in holes provided in COVER (1).

5. Inspect SEAL RUNNING RING (4), seal surface, and general condition to determine if replacement is necessary.

6. Remove SEALS (7), O'RINGS (3), (5), and (6) .

7. Thoroughly clean all surfaces .

8 . Replace SEALS (7): Lip on prop side must face water, lip on gearbox side must face oil.

NOTE: It is possible to receive 2 different seal case materials: the prop side seal should be stainless steel case, gearbox side can be either stainless steel or steel. Check with magnet before i nstallat ion.

9. Lubricate seals with EPZ grease after installation.

10. Install new O'RING (3).

11. Install COVER (1) Atmosit sealer between gearbox and cover.

12. Install BOLTS (2) using loctite 27 1 on threads, torque as per drawing SK-0033.

13. Replace O'RINGS (5) (6) on SEAL RUNNING RING (4).

14 . Heat SEAL RUNNING RING (4) in water to 212° F (100°C), quickly place seal running ring on prop shaft and slide into pl ace .

3 - 24

15. Install propeller in accordance wi th procedures outlined on page 3- 17 of this manual.

16. Fill gearbox with specified oil through head tank.

17. Inspect for oil leaks before submerging Thrus ter.

3 - 25

-r+r-------

•Torque 51 ft.lbs.

oLocktite 271

SCHOTTEL OF AMERICA INC.

HEAVY DUTY MARINI PROPULSI ON EQUIPMENT

M I AM I, f L 0 I I 0 A

DRAW K

CHECK PROP SHAFT

i IIi II

IT II US SK-0033

SECTION 4

PARTS LIST

4. 1

DRAWN

CHECK

UCR

STRESS

I '

I

SECTION IV

CD SK-0035

I

@) SK-003 ,

®sK';"'0036 · ·'-~~

I --+--

I

I 0 SK-0037

I I I

SCHOTTEL OF AMERICA I N C .

HEAVY DUTY MARl NE PROPULSION EQUIPMENT

M I AM I , fLORIDA

GENERAL ARRANGEMENT

SK-0034

4-2

5CHOTTEL OF AMERICA. INC.

Assy: DRIVE FLANGE Dwg. No.: SK-0035

POS. QTY. PART NO. DESCRIPTION

1 12 1001031 NUT, M24

2 1 NS000-525 RING, retaining, Truarc

3 1 1038924 FLANGE, drive

4 1 NS000-400 RING, snap, Truarc

5 1 1038925 PLATE, cover

6 1 1013920 BOLT, 30x 70

7,7A 1 '(7)WASHER, M30 Nyloc,(7A)Fiat,sti.M30

8 1 1001379 0-RING, 95 x 3 Neoprene

9 2 1001174 SEAL, 110x 130X13

10 12 o- RING, 4 x 24

11 1 1001414 0- RING ' 4 X 160

12 12 1001575 LOCKWASHER, M24

13 12 1011480 STUD, M24x 80,DIN939, 8:38, L:80

Page 4-5

SCHOTTEL OF AMERICA INC.

HEAVY DUTY MARINI PR OPULSION EQUIPMENT

M I AM I , F L 0 II I D A

CHECK PROP HUB ASSY.

ElliR

ITRUS SK-0036

4-6

SCHOTTEL OF AMERICA . INC.

• Assy: S-300L GENERAL ARRGMT Dwg. No.: SK- 0034

POS. QTY. PART NO. DESCRIPTION

1 1 SK-0035 DRIVE FLANGE ASSY.

2 1 SK-0036 PROP HUB ASSY.

3 1 SK-0037 SKEG ASSY.

4 1 SK-0038 LOWER GEARBOX ASSY.

Page4-3

I I

! I i

SCHOTTEL OF AMERICA INC .

HIAVY DUTY MAIINI PIOPULSION IQUIPMINl

M I AM I , F L 0 I I D A

DIAWI

ClUCK DRIVE FLANGE ASSY.

UCR

IT Rill SK-0035

A A

SCHOTTEL OF" AMER I CA . INC.

Assy: PROP. HUB Dwg. No.: SK- 0036

POS. QTY. PART NO. DESCRIPTION

1 1 1008872 PROPELLER

2 2 1003852 TAP WASHER

3 2 1000718 HEX. SCREW

4 1 1005990 USIT-RING

5 1 1000949 CAP SCREW

6 1 1008882 PROPELLER CAP

7 1 1004826 PROPELLER NUT

8 1 1001424 OIL SEAL

9 1 1003853 KEY

10 1 1005968 SPLIT SLEEVE

Page 4-7

9r----_J

8 ·----0

SCHOTTEL OF AMERICA INC.

HEAVY DUTY MARINI PROPULSION EQUIPMENT

M I A M I, fLOaiOA

CHECK SKEG ASSY.

UGR

I TRESS SK-0037

4·8

SCHOTTEL OF" AMERICA . INC.

Assy: SKEG Dwg. No.: SK-0037

POS. QTY. PART NO. DESCRIPTION

1 1 1001511 0- RING, 4" 230

2 22 1021604 LOCKWASHER, M 16 ss

3 22 1000704 BOLT, M 16 x 40 ss

4 1 1038756 FLANGE, Skeg

5 1 1001383 0-RING, 100• 3

6 1 " PLUG, 1/2 NPT, Stl.

7 2 1020805 0- RING, fj 5.7• 89.2

8 1 1038756 PIN, Skeg

9 1 1038963 SKEG

Page 4-9

SCHOTTEL OF AMERICA I NC .

HEAVY DUTY MARINE PROPULSION EQUIPMENT

M I AM I, F l 0 It I D A

DRAWN

CHECK LOWER GEARBOX

UGR

STRESS SK-0038

4-10

SCHOTTEL OF AMERICA . INC.

I PARTS LIST

Assy: LOWER GEARBOX Dwg. No.: SK-0038

POS. QTY. PART NO. DESCRIPTION

1 1 1009082 SHAFT, Prop

2 1 1003851 SPACER

3 1 1009160 COVER

4 2 1001705 SEAL 160 X 190 X 15

5 1 1001425 SEAL, Oil

6 1 1004831 BUSHING

7 1 1001402 SEAL,Oil

8 1 1001450 SEAL, Oil

9 9 1000855 CAP SCREW

10 1 1004161 BEARING

11 1 1005343 BEARING

12 1 1002050 WASHER , Lock

13 1 1002075 NUT, Lock

14 1 1008886 GEARCASE

15 10 1000962 CAPSCREW

16 1 1001314 SEAL, Oil

17 1 1014983 PLUG

18 1 1003749 SHIM

19 1 1002044 WASHER, Lock

20 1 1002069 NUT, Lock

21 1 1003747 DISTANCE RING

22 6 1003859 SPRING

Page 4·11

SCHOTTEL OF AMERICA. INC.

Assy: LOWER GEARBOX Dwg. No.: SK- 0038

POS. QTY. PART NO. DESCRIPTION

23 1 1001437 SEAL,Oil

24 1 1004833 RING

25 1 1008860 FLANGE

26 1 1005319 BEARING

27 1 1003748 RING

28 1 1004127 BEARING

29 1 1012180 GEAR SET

30 18 1000896 CAP SCREW

31 9 1000744 HEX. SCREW

32 1 1004900 RING

33 1 1008880 CAP

34 1 1012180 GEAR SET

35 1 1008896 COVER

36 3 1000918 CAP SCREW

37 3 1005975 USIT RING

38 6 1003857 SPRING

39 1 1003750 SHIM

40 1 1001510 SEAL, Oil

41 1 1005320 BEARING

42 1 1001470 SEAL, Oil

43 1 1008884 COVER, Bearing

44 1 1001473 <' SEAL, Oil

Page 4-12

SCHOTTEL OF AMERICA. INC.

Assy: LOWER GEARBOX Dwg. No. : SK-0038

POS. QTY. PART NO. DESCRIPTION

45 1 1004023 BEARING

46 3 1002191 KEY

Page 4-13

SECTION 5

SPECIAL TOOLS

Matl: 5/8 stl.

I.

SCHOTTEl OF AMERICA INC.

HEAVY DUTY MARINI P ROPULSIO N EQUIPMENT

M I AM I, F L 0 I I D A

lou Our.:.o

CHECK WRENCH, Prop Nut EUIIl

IUUS SK- 0040

NOV. re., 1!:>8'2...

5 · 1

Drill 7/8 f1 thru

3 pies Matl: S/8 stl.

S C H 0· T T E l 0 F A M E R I C A I N C.

HEAVY DUTY MARINE PROPULSION EQUIPMENT

M I AM I, F L 0 II I D A

DRAWN LOU QUAD

cHECK PLATE, Prop Puller £11iR

ITUSS SK- 0039

NOV· I;,, l:l82.

5·2

2- ;?

--- --- I -

7'

~ 00 ~::::---· . ..

• Thd. M20 x 2.5 Pitch - I

-- - 3 Rods Required -

'7 c 7

' c t§] s c H 0 T T E l OF AM E R I CA I N C.

HEAVY DUTY M A It I N E PltOPULSI ON I Q U I P M I N T

M I AM I, FLORIDA

DRAWN .

CHICk ROD, THREADED

UGR

STRESS SK-0040

r

S-3

SECTION 6

REFERENCE DATA

Section l.

1.1

1.2

1.3

1.4

2.

2.1

2.2

3.

3.1

3.2

ARTICULATED SHAFTS FOR SCHOTTEL SYSTEMS

Operating Instructions

DESCRIPTION

General

Theory of Articulated Shafts

Types of Arrangement

Transportation and Storage

INSTALLATION

Install ation Instructions

Flange Unions

MAINTENANCE

Lubricating the Articulated Shafts

Checks

Tightening Torques

Re commended Lubricants

6-1

Page

l. DESCRIPTION

1.1 GENERAL

In SCHOTTEL propulsion systems, articul ated shafts a re mainly use d:

a) as a power transmission element between the clutch at the prime mover and the SCHOTTEL Rudder Propeller (SRP);

b) to transmit steering direction between the axio meter line and the SRP steering flange;

c) for auxiliary systems (pumps, etc.) driven directl y off the fo rward end of the prime mover. However, as this application is relatively rare, it will not be covered herein.

Articulated shafts are service proven and versati l e ele ments of motive power engineering . They make it possible to connect two shafts offset in relation to each other.

Changes i n length during assembl y and in service (such as fo r the SRP vertical adjustment) are compensated for by shaped sliding parts. The us e of articulated shafts permits assembly without expensive al i gnme nt of t he mac h inery sets to be connected.

Articulated drive shafts are mechanical l y balanced accord ing to the ir max. r otational speed in service. The bal ancing plates tacked to the shafts are not to be removed under any circumstances. The shafts must b e rebalanced upon completion of any repair work undertaken.

1.2 THEORY OF ARTICULATED SHAFTS

Wh enever a simple Cardan joint or a ball- and- socket joint is evenly turned in a deflected condit i on , its out put end will show a nonuniform motion (Fig. 1).

~-2

F i g. 1

Uniform

Nonuniform output

This misalignment is compensated for when two simple joints are connected to form an articulated shaft. Complete compensation of the axial misalignment is subject to the following conditions:

a) Same inflection angles at both joints

( l = 2 ).

b) The two inner joint forks must be in the same plane.

c) Input and output shaft must also be in the same plane .

NOTE :

In c orrectl y assembl e d a rticul a t e d shafts increa s e axial misalignme nt a t the output end . Thi s may cause damage to the bearings in the j oints, shape d secti on s o f the splined shafts, and gears arran ged downstream. Accordingly,· c are must b e t a k e n t o insure that the marking arrows on the splined shaf t and splined hub are opposed to e ach othe r whe n asse mblin g the articulated shaf ts halves.

• I •

F i g. 2

6-3

1.3 TYPES OF ARRANGEMENT

Z-type arrangement: Input and output shaft are parallel to each other in the same plane (Fig. 3 ) .

F i g. 3

{31 = 132

W-type arrangement: The axes of input and output shafts arranged in the same plane intersect in a point (Fig . 4).

6-4

F i g. 4

Common plane of deflection

[J , =f32

I;

1.4 TRANSPORTATION AND STORAGE

Articulated shafts are supplied as mechanically balanced and lubricated units ready for installation.

F i g. 5

,f/ ~' ' -' . -

• • -- . I . !7 ,- - -_r.=··r --· , ).L-- - -..;; _ -···-· ' , F i g . . ,6

1 . . ----

F i g. 7

Articulated shafts should be transported in a horizontal posi tion. When transporting them in the vertical position, they must be additionally secured against their separating. The cap of the shaped seal is not to be stressed by the weight of the articulated shaft. Use hemp or nylon rope. (Fig. 5).

Do not remove balancing pieces or plates. An out-of-balance condition causes uneven operation which leads to premature destruc tion of the joint and connecting bearings.

Avoid shocks and impacts during transportation and storage, as the sealing cap (Fig. 6/1) could be pressed out.

If possible, store shafts side by side with the flanges resting on a suit able wooden plat form (Fig. 7).

6-5

2. INSTALLATION

2.1 INSTALLATION INSTRUCTIONS

Remove anticorrosive agents, dirt, grease, burrs, and paint from articulated shaft flanges and counterflanges.

Upon installation and prior to placing in service, the articulated shafts are to be lubricated in accordance with Section 3 . 1 .

F i g. 8

Check fork position (Fig. 8/1) while observing the marking arrows (Fig. 8/2). Remove any securing used during transportation.

Check counterflanges for radial and axial run-out and center fit.

Do not turn articulated shaft by means of assembling levers inserted into the joints because bearing seals might be damaged and lubricating nipples broken off.

Prior to disassembly, measures must be taken to ensure that the original positioning of the articulated shafts can be duplicated during reassembly.

~ x .

F i g. 10

6-6

When painting the shaft, care must be taken so that the shaft areas on which the seal lip slides remain free from paint, as in

Fig. 10/X.

Attention:

When assembling articulated shafts without length or spline adjustment, one connecting part must be of movable con f iguration in order that the articulated shaft can be slipped over the centering adapter.

Changes in length caused by thermal expansion must be

_absorbed by adequate connecting bearings.

Caution:

Adequate safety measures are to be taken by the user where me n and material might be endangered by rotating articulated shafts.

All accident prevention regul ations are to be complied with.

2.2 FLANGE UNIONS

To ensure perfect operation of the articulated shafts, exact alignment of the counterflanges is necessary.

Only bolts of strength class DIN 10.9 or SAE grade 8 may be used as connect ing bolts for articulated shaft attach ments. For mounting purposes, the bolts are to be oiled slightly; lubricants containing Mos additives (such as

Molykote) are to be avoided.

Tighten bolts with torque wrench uniformly using cross pattern; see chart on page 10 for torque values.

3. MAINTENANCE

The articulated shafts used in SCHOTTEL propulsion systems are normally fitted with three DIN 71412 grease nipples, one of which is located at either universal joint while the third serves for relubricating the splined section.

Only class 2 lithium base greases, havin g a penetration number of 265/295 and a drop point of approx. 453 K (l80°C), or the greases indicated i n the

6-7

Chart of Recommended Lubricants on Page 11 are to be used for relubrication.

We recommend to relubricate the articulated shafts after every

250 OPERATING HOURS, BUT AT LEAST EVERY THREE

MONTHS,

and to carry out the checks as to Section 3.2.

3.1 LUBRICATING THE ARTICULATED SHAFTS

Prior to relubrication, the nipples must be cleaned. We recommend lubricating the articulaed shafts at service temperature in order to keep the resistance of the old grease in the articulated shaft as low as possible.

Attention:

THE LUBRICATING PRESSURE IS TO BE LIMITED TO MAX. 15 bars

(15 • 105 Pa)(220 lbs. in 2 ).

Grease universal joints until the used grease comes out at the seals.

When relubricating the splined sections of the sliding parts, take particular care to position a vertically ad justable SRP beforehand in such a way that the articulated shaft to be greased is in a horizontal position and/or is at its shortest length.

If no grease emerges when relubricating the splined sec tion, the cap must be removed and the felt gasket either cleaned or replaced.

CHECKS

3.2 The following checks should be carried out prior to re

lubricating the articulated shafts:

- Check universal joints for wear (checking the play).

- Check splined section for wear (visual check and check of play).

6-8

- Check connecting bolts (flange unions) for tightness;

retighten them if necessary.

For tightening torques see page 10.

In operation, articulated shafts should be constantly checked for anomalous noise; whenever there are deviations from the normal running noise, the cause must be ascer tained and eliminated immediately.

6-9

Tightening Torques for Fastening Bolts of

A: Articulated Propelling Shafts

B: Articulated Steering Shafts

Size of Opening of Tightening Type of SRP Flange Dia Thread Wrench Torque

IT'm mrr NrP (~kp)

10 . • . 12 A 120 H 10 17 69 (7)

30/15 30/31 S0/50

B 90 H 8 13 35 (3,6) S0/51

76/75 A 150 H 12 19 120 (12,3)

76/76 100/100 90 H 8 13 35 (3,6) 100/103 B

100 H 8 13 35 (3,6)

A 180 H 14 22 190 (19,4) 150/152

B 120 H 8 13 35 (3,6)

224/226 A 225 H 16 24 295 (30) 225/226 300/300

B 150 H 10 17 69 (7)

502/502 285 H 20 30 580 (59) 502/503 A 503/ 505 505/505 315 M 22 32 780 (80)

1100/1100 A 390 M 24 36 1000 (10 2) j i <

RECOMMENDED LUBRICANTS

Brand Lubricating Grease

• Grease HLP 2

~ Energrease LS 2

CbiVron

Ill Polyurea EP 2 e Beacon 2 e Marson EPL 2

M©>bil Mobilux 2

@ Alvania EP 2

-1

Shell

~E~cW Multi:fak EP 2

6 -11

SCHOTTEL OF' AMERICA . INC .

. International SCHOTTEL GROUP Companies

Schottel Group companies specialize in providing technical assistance for all types of Schottel Tunnel Thrusters. Facilities and trained mechanics are available at these locations to handle service from routine maintenance to complete overhauls.

The following companies also maintain inventories of

Schottel parts and specialized tooling and are part of the Schottel worldwide service network:

Schottel Werft, 5401 Spay/Rhein, West Germany ; Tlx: 0862867

Schottel Nederland, The Hague, Netherlands; Tlx: 31166

Schotte 1 of America, Inc., Miami, FL; Tl x: 51-9196

Schottel England, London; Tlx: 887179

Sc hottel Far East, Singapore; Tl x: 24715

Schottel SudAmericana, Buenos Aires ; Tl x: 21500

Schotte 1 Do Brazi l, Puerto Allegre; Tl x: 2123782

6 - 12