GU_NONE_GU-KA-568-01_RevNONE_Sht1 THRU 76_N_A_GU-KA-568-01 TUNNEL THRUSTER MODEL S-300-L SERIAL NOS. 86.000.435 AND 86.000.436.pdf

O T9568-AD-MMC-010/32862

TUT4NEL THRUSTER

o

MODEL S-300-L

MILITARY SEALIFT COMMAND

T-AGOS 13 THRU 18

o

08/04/2883 14:42 3685684173

CANYON MOTOR REWIND

CANYON MOTOR REWIND, INC

502 N. MAPLE STREET

SNOHOMISH, WA

98290-2530

Email: canvonniqtoiTewlnd.lnc(aqte.ngt Bus: 360-568-4171 FAX: 360>668-4173

1.800.805.8881

FACSIMILE TRANSMITTAL SHEET

CANYON MOTOR REWIND: A name that has been recognized as a leader in the electrical induatry for mora than 29 years. When it comes to quality assurance - none have been known to rise to the chattenge - time after time - and still maintain a good solid working relationship with all who have had the unique opportunity to have us do their work! All work is perfomned to the highest of standards as per EASA's exacting requirements for consistent quality. Call us today for you next motor repair Job.

To: Dava Hatchell Date: 6/4/2003

Company: NOAA

Total number of pages including cover

FAX: (206) 553-4340 .

^ Phone; (206) 553-̂

Re: Bow Thnjster D.C. Motor

Comments: Hope thattttb will help you a litHe. As you can see the copy shows a single twaring only- Runs In oil.I will try to transpose GE # for a bearing size

_88/a4/2e83 14:42 3685684173

FROM MARINE ENGINEERING DIVISION PACIFIC

THRUSTER MOTORS

CANYON MOTOR REWIND pf^^

(WED) 7 30 2003 1 1:51 /ST. 11;50/N0,501 2847790 P

CHAPTKR 4. SCHEDULED AND

CORRECTIVE MAINTENANCE

I

0 o ^ a o C

0 ( frfftw

Pig. 4-3 Sketch DC644

4-31

88/84/2803 14:42 36856841 73 iTO M l f : t'NGINEERING DIVISION PACIFIC

CANVON MOTOR REWIND

(WED) 7 30 2003 11:51/31.11:50/̂ 0.5012847790 P 2

CHAPTER 4, SCHEDULED AND

CORRECTIVE MAINTENANCE ! THRUSTER MOTORS

1. GREASE INLET, CE (fAR SIK) 23. BEARING. DE

2. EREASE OUTLET, CE (NEAft SIDE) 24. GREASE INLET. OE (FAR SIDE)

a. BEARING CAP, CE 25. GREASE OUTLET, DE (HEAR SIDE)

4. BEARING RETAINER, CE 26. SHAFT KEY

5. BEARING. CE 27. SHAFT

6. BEARING CARTRIDGE4 C£ 2S. ARMATURE SPIDER

7. SPLIT RING 29. RADIAL AIR vENTS

8. LABtRlNTH RING 30- CORE LAWNATIOWS

9. BEARINU BRACKET, CE 31. WINDING SUPPORT, DE

10. YOKE 32. WINDING SUPPORT. CE

n. INSULATION BLOCK 33. ARMATURE COILS

BRUSH hOLCCR STUD 34. ARl̂ TURE-ENO-TURn BANDING GLASS

13. MAGNET FRAME 3S. ARMATURE FLA.NGE. DE

14, POLE BOLT 36. ARMATURE aA.NG£, CE

15. POLE SHIHS 37. EQUALIZER

16. MAIN POLE 3B: COMMUTATOR

17. IXAIN COIL 39. CONDUIT BOX

IB. C0MMUTATIN6 POLS 40. COVER, HANOHOLE

19. COMMUTATING COlL 41. GREASE INLET HYDRAULIC HOSE

20. BEARING BRACKET, DE 42. GREASE OUTLET HYDRAULIC HOSE

21. BEARING CARTRIDGE, DE

22. BEARING CAP, OE

•COUNTER BORED

SIDE*

DC644-1

^ig. 4-4 Sketch DC644-1

4-32

TUMHEL THRUSTER

MODEL S-300-L

SERIAL NOS. 86.000.435 AND 86.000.436

MANUFACTURED BY:

SCHOTTEL OF AMERICA, IMC,

8375 N.W. 56TH STREET

MIAMI, FLORIDA, 33166-4806

o

T.O. NO.:

DATE ISSUED:

: I ;

|3 I I

[ l i t

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[I'l :

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[ i l l

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S C H O T T E L S C N O T T I L WCRFT J u » l t c c i i i i CmbHACo. KG - D S40t S p a y / R h a l n

A b n a h m e p r C l f f z e u g n i s T e s t C e r t i l i c a t e

C e r t i f f i c a t d ' E s s a l s e n U s i n e

DIN 5CX)49-3. 1 B

HALTER MARINE, INC.

Kunde Cuf tomar C l isn t

Projekt-Nr Pro(«ct-No n " d * p ro ja t

Gcrat U n i t a r t i l

Klassifikation C l a u i f i c a t i o n CtcMi f i ca t ion

Schot te l - TUNNEL THRUSTER Typ

S-300-L SRP Typ SRP Trp« W Typ*

Bau-Nr.

S«risl N o .

Bau-Nr.

Serial N o .

NO d t Mr i« .

86.000.435 86.000.436

Autf. Nr.

C o n t t r . N o .

N " d * c o n i t r u c t i o n .

Ausf. Nr.

Const r . N o .

N * d« c o n i t r u c t i o n .

Motor Fabrikat P r i m * Movar Manu tac t .

Mo tau r Fabr ica t ion

Kupplung Q u t c h Embraya f l *

Leistung KW/UPM Powar K W / R P M Puistanca k M t r / m n . .

Fabrikat Manufac t .

Fabr ica t ion

Autf.-Nr.

C o n t t r N o .

N " da c o n i t r u c t i o n .

Typ Typa T y p *

Bau-Nr.

Serial N o .

NO do M r i a .

Typ Typo T y p o

B«u.Nr.

Sarial N o .

NO da ia r ia

Hydr. Systtm S y t i o m a hyd rau l i quo

K raftubertragu rtg Powor T r a m m i t a i o n T r a n i m i u i o n da f o r e *

S t a u a r u n g T y p Staaring Typo T y p * du l y i t l m * d ' o r w n t a t i o n .

Bdrrwrkung Ranvark Ramarquot

Elactr. System S y t t ^ n M a l a c t r i q u *

Propeller Nr.

Propaltor N o .

NO d-hal ic*

Nr.

m mi mi m mi mi mi mi mi mi mi mi mi m m m mi mi mi mi mi mi mi mi

\i mz

•i mi mi mi m mi mi mi m m m mi mi

A h »en d* r F * n > f u n f unabhangi f l * P r u H t o l k b* i ta t t f f *n w i r a u f g r u n d ¥on zahtannu&igan E r t * b n i i i * n au> Pr i i fungon on 4 * r L ia fa-r u n f to lbat , da> dat G a r i t dan Vara i i tbarungan d* r B a i t a t l u n f , in ibaaondar*

a) dan M a r k t t o H o r d a r u n g a n b l dar MaSha l t i gka i l c) dar F u n k t i o m t i k h t i g k a i t a n t i p r i c h l .

Wir MbarrMtiman h iar f i i r dia var t ragi ich varainbarta Oa ran t i * .

:o, I aipcMidt t o t t ia agroatnantt Ma . indapandant c o n t r o l d a p a r t m a n l . haraby c o r t i f y , baaad o n numara l raau l t i o f t a t t t , tha t t tM u n i t ci of tha ordar , a tpacia l ly

a) t o matar ia l r aqu i t i t i o fN b l t o roapoct o f d i m a n i i o n t c ) t o a f f i c i ancy .

Ma harawntti o v a r u k a tha cont rac twal fy agraad guaranta* .

N o u i , K H i u i g r w t . du dapar tamant con t ro ta , indapandant du l iapar ta i iMnt p r o d u c t i o n , c a r t i f i o m par la p ra ian t d o c u m a n t , baaa l u r laf r t au t t a t i c h i f f r a , d*> ( u a i i . i)ua l aqu ipamant cor raapond bian a la c o m m a n d * , an par t icu l ia r an ca q u i conoarna:

a l lat ma t ia ra , pramwraa b) la ra ipact das d i m a n t i o n i c l la b o n f o n c t i o n n a m o n t .

N O U I p r o n o n i done an charga la garanl ia oont rac tua l la .

Spay,2Z..-J.anuar*.19a7..

S C H O T Qualitalssic

^ t t i a i i t a t w i e f i a Q u a l i t y Aaturarwa C o n t r A I * Qual i ty

• • » • • • • • • • « • » » ^ ^ » « » " » i » ^ ^ ^ » T > ^ ^ ^ a a ^ a * a a a " a ^ ^ a ^ a ^ a a V a ^ ^ o ^ w * » i » a a a « m mi mi mi mi mi mi mi mi mi mi mi mv mi mi mi

] i

SAFETY PROCEDURES

Before Operation

Make certain the operating area i s clear of obstructions and personnel.

Keep excess grease, o i l 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 maintenance on the unit while running.

After Operation

(^^^ Make certain that the throttle is f u l l y closed and the prime mover is properly secured.

Stop a l l operations when cleaning, adjusting or lubricating the unit.

Keep excess grease, o i l and other spillage cleaned off the unit at a l l times.

When performing maintenance on the un i t remember that due to size and weight of components, ex t reme care shou ld be t aken when m o v i n g , p o s i t i o n i n g , e tc . , to prevent personal i n j u r y as w e l l as damage to components.

Use proper l i f t i n g procedures and proper equipment to l i f t , move and pos i t ion components.

When maintenance procedures are terminated, take inventory of too l s , shop c l o t h s , e tc . , t o ensure no f o r e i g n ob jec t s are i n s i d e the u n i t t o cause p o t e n t i a l l y hazardous s i tua t ions .

o RECORD OF CHANGES

CHANGE

No.

DATE TITLE OR BRIEF

DESCRIPTION

ENTERED BY

Q:

SCHOTTEL "nniNEL BOW THRUSTEB

MODEL S-300-L

Schottel of America Contract No, MILITARY SEALIFT COMMAND

Contract No. N00024-85-2046

Date of Contract:

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

NAVSHIPS I.D. NO.

TABLE OF CONTENTS

SECTION PAGE

1 GENERAL INFORMATION

Introduction and Description 1-1 General Arrangement Drawing 1-2 Bow Thruster Description 1-3 Lubrication Instructions 1-4

2 MAINTENANCE & TROUBLESHOOTING

Scheduled Maintenance Recommendations 2-1 Troubleshooting Data Chart 2-2

3 SERVICE

Gearbox Removal 3-1 Gearbox Installation 3-12 Drive Flange Seal Replacement 3-21 Propeller Shaft Seal Replacement 3-24

4 PARTS LIST

General Arrangement 4-2 Drive Flange Assembly 4-4 Prop Hub Assembly 4-6 Skeg Assembly 4-8 Lower Gearbox Assembly 4-10

5 SPECIAL TOOLS

Prop Nut Wrench 5-1 Prop Puller Plate 5-2

6 REFERENCE DATA

Articulated Shafts 6-1 Recommended Lubricants 6-11 Schottel Group Companies 6-12

SECTION I

GENERAL INFORMATION

O o 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 f u l l y submerged during operation. Operation in air must be limited to 60 seconds or less.

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

DESCRIPTION

Manufacturer;

Part Number;

Operating Fluid:

Mounting:

Oil Operating Temp.

Weight;

Lubrication;

Schottel of America, Inc.

S-3OO-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

1 - 1

S Z . S T U M M C U I . O . , S 4 . O TUMMICI. O . O

o n r P t E S H I P : l e a .

SHipBuiLcecs joe> Kjofo: M^so-^3<s-l3 t Mesi-aoft-'*- S H I P O U l l D E E S A w e C V A L LETTE* . F I L E >4o. * O a t * " -

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u s o Q A P o i z o ^ i L L C T T t e FILE Wo. i OorTE; i s i g r r e o o

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DCIVC F L A M J E 6SSY.

PPOP UUO i^SSY.

SkEC ASSV

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I I I » I [ i T T c m m i l

S C H O T T E L OF A M E R I C A I N C

H f A V T B U f T M A B I H I P I O r U l l t O M i a W I P M I M T

M I A M I , f l O I I * .

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CHAPTER I

SECTIOM 1-2

0?: "•

THIS MANUAL COVERS SCHOTTEL TUNNEL

BOW THRUSTER TYPE S-300-L

1-1

1-2

1-3

1-4

1-5

1-6

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

The bow thruster w i l l give equal thrust to port and starboard

The propeller shaft taper is 1 to 10.

Propeller Information , , Diameter:

Pitch: (mean) Number of Blades;

Blade Area Ratio;

51.18 inches (300 mm)

40.51 inches (1029 mm) .617

A separate header o i l tank is provided.

Tunnel Dimensions |

Inside Diameter:

Length;

Steel Plate Thickness:

Bow Thruster Weight:

52.5 inches 44 inches .75 inch

4300 lbs. (approx.)

1-3

•4f \

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 f i l l e d with o i l . A separate tank is supplied and must be mounted above the loaded v/ater line. All oil connections must in accordance with lube oil system drawing.

be

VISCOSITY

c St/50°C 30-53

VISCOSITY

DIN C-LP49 DIN 51 517

COMPANY

AGIP Blasia 57

ARAL BG 24

BP Energol GR-XPG8 The load stage of the gearbox o i l used must be above 12 of the FZG Test AB.3/90 accor ding to DIN 59 354. CALTEX

Multipurpose Thuban LP 30

The load stage of the gearbox o i l used must be above 12 of the FZG Test AB.3/90 accor ding to DIN 59 354.

CASTROL

Alpha 21Z Alpha 31Z

CHEVRON

Non-Leaded Gear Compound 68

EXXON Spartan EP-58

MOBIL Mobilgear 626

SHELL Omala 68

TEXACO

Multigear Lubricant EP80 Rando HD 315

Check the oil level regularly during the f i r s t few hours of operation. The oil level will drop due to air trapped in the system; this makes periodic checks essential, as the addition of oil may be necessary.

OIL CHANGE

As with most machinery, the Schottel Bow Thruster unit has a breaking-in period, requiring that the oil be changed for the f i r s t 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

MAINTENANCE

RECOMMENDED MAINTENANCE SCHEDULE

DAILY Check oil level in lube oil tank.

MONTHLY Perform visual check for oil leaks.

SEMI-ANNUALLY Check all fastenings. ••, ANNUALLY Change o i l .

BI-ANNUALLY Check propeller and propeller seals

2 - 1

THRUSTER TROUBLESHOOTING DATA

TROUBLE

PROBABLE CAUSE

(REF. SECTION 4) REMEDY

Banging Noise Debris in Thruster Tunnel Diver sent down to clear tunnel

Excess Vibration Propeller Blade Damaged Remove propeller for repai r

Oil Leak \ (Visible)

Defective Seal or O'Ring Dwg. SK-0035 - 7, 8, 9 ., Locate defective part(s) and replace

Oil Leak (Loss of oil in tank, no visible signs of leak)

Defective Seal or O'Ring Dwg. SK-0035 - 11

SK-0037 - 1, 5, 7

SK-0038 - 4, 8, 44,

40-42, 23

Locate defective part(s) and replace

Water in Oil Defective Seal or O'Ring Dwg. SK-0035 - 11

SK-0037 - 1, 5, 7

SK-0038 - 4, 8, 44,

40-42, 23

Locate defective part(s) and replace

Water Leak Defective O'Ring, Loose Fastening Dwg. SK-0035 - 10, 1

Locate defective part(s) and replace

No Power Out-Put Engine Operating Normally

Defective Gears Dwg. SK-0028 - 29, 34

Remove defective part(s) and replace

2 - 2

SECTION 3

SERVICE

GEARBOX

REMOVAL

3-1

S C H O T T E L O F A M E R I C A . INC . -

LOWER GEARBOX REMOVAL

I . PURPOSE: ^

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

I I . REFERENCED DRAWINGS: '

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

SK-0028 - General Arrangement j^ .i , . i;^ SK-0029 - Drive Flange Assembly v". , . r j , ;

SK-0030 - Prop Hub Assembly SK-0031 - Skeg Assembly t

• ,. • . V ' '

I I I . TOOLS/EQUIPMENT/MATERIALS REQUIRED:

The following must be on hand to implement these procedures: ' , A. YARD SUPPLIED

•A

1. Lifting Equipment

2. Metric Wrenches '

3. Hydraulic Jack

4. Torque Wrench

5. Sealer - "Atmosit", Loctite "Master Gasket Eliminator" or equivalent.

6. Loctite "271"

7. Gear Puller

8. Metric 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" Ig; 3 each Nuts M20

3. Propeller Puller Plate: Drawing SK-0039

NOTE: Metric sizes used throughout. '

3-2 rSl S C H O T T E L OF A M E R I C A I N C ' S f ' H E A V Y D U T Y M A R I N E P t O P U L S I O N E Q U I P M E N T ^ I M I A M I . F L O R I D A

DRAWN

CHECK

ENSR

STRESS

GENERAL ARRANGEMENT

S K - 0 0 2 8

3 -3

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 f l a t

WASHER (7A).

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

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

3-4

• Torque 180 ft. lbs.

••Torque 100 ft. lbs.

o Locktlte 271

S C H O T T E L O F A M E R I C A I N C H E A V Y D U T Y M A R I N E P R O P U L S I O N I Q U I P M E N T

M I A M I . F L O R I D A

DRAWN

CHECK

ERSR

STRESS

DRIVE FLANGE ASSY.

S K - 0 0 2 9

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). >- v

2. Remove PROP CAP (6).

3. Remove oil seal O'RING (8). - " :

4. Remove TAPWASHERS (2), i f 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 v necessary.

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

3 - 6

• Torque 47 ft. lbs.

••Torque 200 ft. lbs.

o Locktite 271

S C H O T T E L OF A M E R I C A I N C

H E A V Y D U T Y M A R I N E P R O P U L S I O N I Q U I P M E N T

M I A M I . F L O R I D A

DRAWN

CHECK

ElfiR

STRESS

PROP HUB ASSY.

S K - 0 0 3 0

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 f a l l when all bolts are removed; support as required during disassembly.

5. Lower SKEG (9) and remove. ?S

3-8 y / / / / / / / / / / / / / A

-I k 1 1 ^ 1

• Torque 54 ft. lbs.

oLocktlte271

Z

S C H O T T E L O F A M E R I C A I N C H E A V Y D U T Y M A R I N E P R O P U L S I O N I Q U I P M E N T

M I A M I . F L O R I D A

DRAWN

CHECK

.NCR

STRESS

SKEG ASSY.

S K - 0 0 3 ]

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 ( l ) .

2. Lower gearbox into tunnel by means of chainfall.

3. Remove gearbox from tunnel. i ... ^

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

fa* • o Locktite 271

S C H O T T E L O F A M E R I C A I N C H E A V Y D U T Y M A R I N E P R O P U L S I O N E Q U I P M E N T

M I A M I . F L O R I D A

DRAWN

CHECK

ENSR

STRESS

DRIVE FLANGE ASSY.

S K - 0 0 2 9

3-11

GEARBOX

INSTALLATION

3-12

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

If repair is indicated, the gearbox exchange program 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) i

NOTE: Thoroughly clean all mounting surfaces prior to reassembly. •

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

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

do not tighten fully at this time.

NOTE: Leave chainfall in position.

3-13 o Locktite 271

L O F A M E R I C A I N C .

A R I N E P R O P U L S I O N E Q U I P M E N T

M I A M I . F L O R I D A

DRAWN

CHECK . DRIVE FLANGE ASSY.

CN6R

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 loctite "271", and reinstall. Torque as per drawing.

6. Remove chainfall.

I

3 - 15

• Torque 54 ft. lbs.

oLocktite 271

S C H O T T E L O F A M E R I C A I N C H E A V Y D U T Y M A R I N E P R O P U L S I O N E Q U I P M E N T

M I A M I . F L O R I D A

DRAWN

£NECK

ENfiR

STRESS

SKEG ASSY.

S K - 0 0 3 ]

3-16

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 i t will 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. „ .̂,t

6. Harden PROP NUT (7) with special wrench provided. Take another clearance reading as in Step 4, above. Reading should be .020" minimum, preferably more.

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

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

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 using CAP SCREWS (5) and new USIT RING (4). Torque as per drawing.

1̂ .

3 - 17

• Torque 47 ft. lbs.

••Torque 200 ft. lbs.

o Locktite 271

S C H O T T E L OF A M E R I C A I N C

H E A V Y D U T Y M A R I N E P R O P U L S I O N I Q U I P M E N T

M I A M I , F L O R I D A

DRAWN

CHECK

EI6R

STRESS

PROP HUB ASSY.

S K - 0 0 3 0

3-18

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 f l a t 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. Fil l 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 drive flange.

8. Submerge tunnel thruster, test run.

3-19

••Torque 100 ft. lbs. ^ 0 Locktite 271

L A R

M

O F A M E R I C A I N C .

I N E P R O P U L S I O N E Q U I P M E N T l A M I . F L O R I D A

DRAWN

DRIVE FLANGE ASSY. CHECK DRIVE FLANGE ASSY.

IHBR

DRIVE FLANGE ASSY.

STRESS S K - 0 0 2 9

3-20

DRIVE FLANGE SEAL REPLACEMENT

3-21

DRIVE FLANGE SEAL REPLACEMENT: (Ref. Drawing 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 f l a t

WASHER (6A).

6. Remove DRIVE FLANGE (2) using gear puller. '

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

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

9. Install SNAP RING (1).

10. Install DRIVE FLANGE (2) using HEX HEAD BOLT (5) and new NYLOC WASHERS (6). Install f l a t 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). ,:f''\

13. Reconnect intermediate drive shaft.

14. F i l l gearbox with specified oil through head tank.

15. Inspect for oil leaks and test run thruster. -

3 - 22

•Torque 100 ft.lbs.

OLocktite 271

S C H O T T E L O F A M E R I C A I N C .

H E A V Y D U T Y ' M A R I N E P R O P U L S I O N E Q U I P M E N T

M I A M I . F L O R I D A

DRAWN

CHECK

EH8R

STRESS

DRIVE FLANGE

S K - 0 0 3 2

3-23

PROP SHAFT SEAL REPLACEMENT

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 outlined v ' 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 i f 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 o i l .

NOTE: I t 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 installation.

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 271 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 place.

3 - 24

15. Install propeller in accordance with 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 Thruster.

V- •

3 - 25

•Torque 51 ft.lbs.

OLocktite 271

S C H O T T E L O F A M E R I C A I N C H E A V Y D U T Y M A R I N E P R O P U L S I O N E Q U I P M E N T

M I A M I . F L O R I D A

DRAWN

CHECK

<lfiR

STRESS

PROP SHAFT

S K - 0 0 3 3

3-26

SECTION 4

PARTS LIST

*i"''..

-err. . .

SECTION IV

( ^ S K r 0 0 3 6

0 SK-0031

I

S C H O T T E L O F A M E R I C A I N C H E A V Y D U T Y M A R I N E P R O P U L S I O N I Q U I P M E N T

M I A M I . F L O R I D A

DRAWN

CHECK

EN6II

STRESS

GENERAL ARRANGEMENT

SK-0034

4-2

S C H O T T E L O F A M E R I C A . I N C .

' PARTS L IST

Assy: DRIVE FLANGE Dwg. No.: S K - 0 0 3 5

POS. QTY. PART NO. DESCRIPTION

1 12 1001031 NUT, M24

2 1 N5000-525 RING, retaining, Truarc

3 1 1038924 FLANGE, drive

4 1 N5000-400 RING, snap,Truarc

5 1 1038925 PLATE, cover

6 1 1013920 BOLT, 30x70

7,7A 1 (7)WASHER, M30 Nyloc,(7A)Ftat,sti.M30

8 1 1001379 0-RING, 95» 3 Neoprene

9 2 1001174 SEAL, 110x1 BOX 13

10 12 0 - R I N G , 4 x 2 4

11 1 1001414 0 - RING, 4x160

12 12 1001575 LOCKWASHER, M24

13 12 1011480 STUD,M24x80,DIN939,B--38,L:80

• - -i-: -

Page 4-5

1'

S C H O T T E L O F A M E R I C A I N C H E A V Y D U T Y M A R I N E P R O P U L S I O N E Q U I P M E N T

M I A M I . F L O R I D A

DRAWN

CHECK

ENSR

STRESS

PROP HUB ASSY.

SK-0036

4-6

' 'W'aft'yy^yffltî îifillegal.';'

S C H O T T E L O F A M E R I C A . INC .

PARTS LIST

Assy : S - 3 0 0 L 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.

It" •

Page 4-3

H E A V Y D U T Y M A R I N E P R O P U L S I O N E Q U I P M E N T

M I A M I , F L O R I D A

ORAWH

CHECK

IR6R

STRESS

DRIVE FLANGE ASSY.

S K - 0 0 3 5

A -A

PARTS L IST

Assy: PROP HUB Dwg. No.: S K - 0 0 3 6

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 y / / / / / / / / / / / / / A

^ L - L J 1 U

1 .̂ 1 m r- -1 k j ; 1 ij / 1

1 r ^ 1 \ \ \ 2 ^

S C H O T T E L O F A M E R I C A I N C H E A V Y D U T Y M A R I N E P R O P U L S I O N E Q U I P M E N T

M I A M I . F L O R I D A

DRAWN

CHECK

ENSR

STRESS

SKEG ASSY.

SK-0037

4-8

Assy: SKEG Dwg. No.: S K - 0037

POS. QTY. PART NO. DESCRIPTION

1 1 1001511 0 - R I N G , 4 x 2 3 0

2 22 1021604 LOCKWASHER, M16ss

3 22 1000704 BOLT, M 16 X 40 ss

4 1 1038756 FLANGE, Skeg

5 1 1001383 0-RING, 100x3

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

7 2 1020805 0 -R ING, 0 5.7x89.2

8 1 1038756 PIN, Skeg

9 1 1038963 SKEG

Page 4-9

H E A V Y D U T Y M A R I N E P R O P U L S I O N E Q U I P M E N T

M I A M I . F L O R I D A

DRAWN

CHECK

ENER

STRESS

LOWER GEARBOX

S K - 0 0 3 8

4-10

Assy: LOWER GEARBOX Dwg. No.: S K - 0 0 3 8

POS. QTY PART NO. DESCRIPTION

1 1 1009082 SHAFT, Prop

2 1 1003851 SPACER

3 1 1009160 COVER

4 1001705 SEAL 160x190x15

5 1 1001425 SEAL, Oil

6 1 1004831 BUSHING

7 1 1001402 SEAL,Oil

8 1 1001450 SEAL, Oil

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

Assy: LOWER GEARBOX Dwg. No.: S K - 0 0 3 8

POS. QTY PART NO. DESCRIPTION

23 1 1001437 SEAL,Oi l

24 1 1004833 RING

25 1 1008860 FLANGE

26 1 1005319 BEARING

27 1 1003748 RING

28 1 1004127 BEARING

29 1 1012180 GEARSET

30 18 1000896 CAP SCREW

31 9 1000744 HEX. SCREW

32 1 1004900 RING

33 1 1008880 CAP

34 1 1012180 GEARSET

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

S C H O T T E L O F A M E R I C A . INC .

PARTS LIST

Assy: LOWER GEARBOX Dwg. No.: S K - 0 0 3 8

POS. QTY PART NO. DESCRIPTION ~- •

45 1 1004023 BEARING

46 3 1002191 KEY

Page 4-13 t;..

SECTION 5

SPECIAL TOOLS

"1, Mati: 5 /8 s t I .

H E A V Y D U T Y M A R I N E P R O P U L S I O N E Q U I P M E N T

M I A M I . F L O R I D A

DRAWN LouQu/^D

CHECK

ENfiR

STRESS

NCTv. l a . i2)e.^

WRENCH, Prop Nut S K - 0 0 4 0

5 1

Drill 7/8 0 thru

3 pIcs Mati: 5 /8 stI.

S C H O T T E L O F A M E R I C A I N C H E A V Y D U T Y M A R I N E P R O P U L S I O N E Q U I P M E N T

M I A M I , F L O R I D A

DRAWN LOU OU>:xD

CHECK

iHfiR

STRESS

NOV-13, lf)5Z

PLATE,Prop Puller S K - 0 0 3 9

5-2 i

Thd. M20X2.5 Pitch

3 Rods Required

S C H O T T E L O F A M E R I C A I N C H E A V Y D U T Y M A R I N E P R O P U L S I O N E Q U I P M E N T

M I A M I , F L O R I D A

DRAWN

CHECK

ENCR

STRESS

ROD,THREADED

S K - 0 0 4 0

5 - 3

SECTION 6

REFERENCE DATA

ARTICULATED SHAFTS FOR SCHOTTEL SYSTEMS

Operating Instructions

Section

1.

1.1 . -

1.2 ^

1.3 .

1.4

DESCRIPTION

. General ..

Theory of Articulated Shafts

Types of Arrangement

Transportation and Storage

Page

2.

2.1

2.2

INSTALLATION

I n s t a l l a t i o n Instructions

Flange Unions

3.

3.1

3.2

MAINTENANCE

Lubricating the Art i c u l a t e d Shafts

Checks

Tightening Torques 10

Recommended Lubricants 11

6-1

1. DESCRIPTION ,̂.4

1.1 GENERAL - '

In SCHOTTEL propulsion systems, a r t i c u l a t e d shafts are mainly used:

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

b) to transmit steering d i r e c t i o n between the axio-meter l i n e and the SRP steering flange;

c) for a u x i l i a r y systems (pumps, etc.) driven d i r e c t l y o f f the forward end of the prime mover. However, as t h i s application i s r e l a t i v e l y rare, i t w i l l not be covered herein.

A r t i c u l a t e d shafts are service proven and v e r s a t i l e ele ments of motive power engineering. They make i t possible to connect two shafts o f f s e t i n r e l a t i o n to each other.

Changes in length during assembly and in service (such as for the SRP v e r t i c a l adjustment) are compensated for by shaped s l i d i n g parts. The use of a r t i c u l a t e d shafts permits assembly without expensive alignment of the mach inery sets to be connected.

Art i c u l a t e d drive shafts are mechanically balanced accord ing to t h e i r max. r o t a t i o n a l speed in service. The bal ancing plates tacked to the shafts are not to be removed under any circumstances. The shafts must be rebalanced upon completion of any repair work undertaken.

1.2 THEORY OF ARTICULATED SHAFTS

Whenever a simple Cardan j o i n t or a ball-and-socket j o i n t i s evenly turned in a deflected condition, i t s out-i put end w i l l show a nonuniform motion (Fig. 1).

C-2

F i g .

Uniform input

Nonuniform output

This misalignment i s compensated for when two simple j o i n t s are connected to form an ar t i c u l a t e d shaft. Complete compensation of the ax i a l misalignment i s subject to the following conditions:

a) Same i n f l e c t i o n angles at both j o i n t s

' < 1 = 2 >•

b) The two inner j o i n t forks must be in the same plane.

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

NOTE:

Incorrectly assembled a r t i c u l a t e d shafts increase a x i a l misalignment at the output end. This may cause damage to the bearings in the j o i n t s , shaped sections of the splined shafts, and gears arranged downstream. Accordingly, care must be taken to insure that the marking arrows on the splined shaft and splined hub are opposed to each other when assembling the a r t i c u l a t e d shafts halves. -

F i g . 2

6-3

1.3 TYPES OF ARRANGEMENT

Z-type arrangement: Input and output shaft are p a r a l l e l to each other in the same plane ( F i g . 3 ) . .̂

F i g . 3

Common plane of deflection

/3T = /32

W-type arrangement: The axes of input and output shaf t s arranged i n the same plane in tersec t in a point ( F i g . 4)

F i g . 4

Common plane of deflection

6-4

1.4 TRANSPORTATION AND STORAGE i*

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

F i g . 5

F i g . 6

Art icu la ted shaf t s should be transported i n a horizontal pos i t i o n . When transport ing them i n the v e r t i c a l pos i t ion , they must be addi t ional ly secured against t h e i r separat ing. The cap of ;

the shaped sea l i s not to be s tressed by the weight of the ar t i cu la ted s h a f t . Use hemp or nylon rope. ( F i g . 5 ) .

Do not remove balancing pieces or p la te s . An out-of-balance condition causes uneven operation which leads to premature destruc t ion of the jo in t and connecting bearings.

Avoid shocks and impacts during transportat ion and storage, as the sea l ing cap ( F i g . 6/1) could be pressed out.

F i g . I f possible, store shafts side by side with the flanges resting on a suitable wooden platform (Fig. 7)

6-5

2.

2.1

INSTALLATION

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.

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

F i g. 8

Check counterflanges for radial and axial run-out and center f i t .

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.

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

Fig. 10/X.

F i g . 10

6-6

Attention:

When assembling a r t i c u l a t e d shafts without length or spline adjustment, one connecting part must be of movable con f i g u r a t i o n i n order that the a r t i c u l a t e d shaft can be slipped over the centering adapter.

Changes in length caused by thermal expansion must be

V .absorbed by adequate connecting bearings.

Caution:

Adequate safety measures are to be taken by the user where men and material might be endangered by r o t a t i n g a r t i c u l a t e d shafts. , V

A l l accident prevention regulations are to be complied with.

2.2 FLANGE UNIONS >

To ensure perfect operation of the a r t i c u l a t e d shafts, exact alignment of the counterflanges i s necessary.

Only b o l t s of strength class DIN 10.9 or SAE grade 8 may be used as connecting bolts for a r t i c u l a t e d shaft attach ments. For mounting purposes, the bolts are to be o i l e d s l i g h t l y ; lubricants containing MoSg 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 a r t i c u l a t e d shafts used in SCHOTTEL propulsion systems are normally f i t t e d with three DIN 71412 grease nipples, one of which i s located at either universal j o i n t while the

; t h i r d serves fo r r e l u b r i c a t i n g the splined section.

Only class 2 l i t h i u m base greases, having a penetration number of 265/295 and a drop point of approx. 453 K (180°C), or the greases indicated in the

6-7

Chart of Recommended Lubricants on Page 11 are to be used for r e l u b r i c a t i o n .

We recommend to relubricate the a r t i c u l a t e d shafts a f t e r 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 r e l u b r i c a t i o n , the nipples must be cleaned. We recommend l u b r i c a t i n g the articulaed shafts at service temperature in order to keep the resistance of the old grease in the a r t i c u l a t e d shaft as low as possible.

Attention:

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

(15 • 10^ Pa)(220 lbs. i n ̂ ) .

Grease universal j o i n t s u n t i l the used grease comes out at the seals.

When r e l u b r i c a t i n g the splined sections of the s l i d i n g parts, take p a r t i c u l a r care to position a v e r t i c a l l y ad justable SRP beforehand in such a way that the a r t i c u l a t e d shaft to be greased i s i n a horizontal position and/or i s at i t s shortest length.

I f no grease emerges when r e l u b r i c a t i n g the splined sec t i o n , the cap must be removed and the f e l t gasket either cleaned or replaced.

CHECKS

3.2 The following checks should be carried out p r i o r to re l u b r i c a t i n g the a r t i c u l a t e d shafts:

- Check universal j o i n t s for wear (checking the play).

- Check splined section for wear (visual check and check '* 4 1 . " ' T \

^ ^ . ' of p l a y ) .

6-8

- Check connecting bolts (flange unions) for tightness; % retighten them i f necessary.

For tightening torques see page 10. '

In operation, a r t i c u l a t e d 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.

•4-

6-9

,,v T i g h t e n i n g Torques f o r Fastening B o l t s of

, A: A r t i c u l a t e d Propelling Shafts

* - B; A r t i c u l a t e d Steering Shafts

Type of SRP Flange Dia m m

Size of Thre ad

Opening of Wrench rrrr

Tightening Torque

Nm (rr̂ kp)

10 ... 12 30/15 30/31 50/50 50/51

A 120 M 10 17 69 (7) 10 ... 12 30/15 30/31 50/50 50/51 B 90 M 8 13 35 (3,6)

76/75 76/76 100/100 100/103

A 150 M 12 19 120 (12,3) 76/75 76/76 100/100 100/103

B 90 M 8 13 35 (3,6)

76/75 76/76 100/100 100/103

B 100 M 8 13 35 (3,6)

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

150/152

B 120 M 8 13 35 (3,6)

224/226 225/226 300/300

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

B 150 M 10 17 69 (7)

502/502 502/503 503/505 505/505

A 285 M 20 30 580 (59) 502/502

502/503 503/505 505/505

A

315 M 22 32 780 (80)

1100/1100 A 390 M 24 36 1000 (102) c — in

RECOMMENDED LUBRICANTS ' f - ' , B r a n d L u b r i c a t i n g Grease ,,t •

Grease HLP 2

E n e r g r e a s e LS 2 0 ' f •

Poly-urea EP 2 ,•

( ^so) Beacon 2 fsC";..'-;-. , ^ . ;„i: :, Marson E P L 2 r »i

M©bll Mobilux 2 . '^ ' " •

• S h e l l

A l v a n i a E P 2 , *

I ] M u l t i f a k EP 2

. ;• -v", 6-11

SCHOTTEL o r A M E R I C A . I N C . "

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. - • '^^^^^^^A'

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

Schottel of America, Inc., Miami, FL; Tlx: 51-9196

Schottel England, London; Tlx: 887179 t ' *, : • •% Schottel Far East, Singapore; Tlx: 24715

Schottel SudAmericana, Buenos Aires; Tlx: 21500

Schottel Do Brazil, Puerto Allegrei Tlx: 2123782

... . •• " • -r.- -V.̂,' . , 6 - 12