6

70640

POWER TRIM

6 - 0 Power Trim 90-806534970 1096

Table of ContentsPage

Trim Pump Specifications 6 - 1. . . . . . . . . . . . . . . . . Valve Pressure Specifications 6 - 1. . . . . . . . . . . Electrical Specification 6 - 1. . . . . . . . . . . . . . . . . Torque Specification 6 - 1. . . . . . . . . . . . . . . . . . . Special Tools 6 - 1. . . . . . . . . . . . . . . . . . . . . . . . . . Lubricants, Adhesives, and Sealers 6 - 1. . . . . .

Trim Pump Exploded View 6 - 2. . . . . . . . . . . . . . . . . Oildyne Trim Pump 6 - 2. . . . . . . . . . . . . . . . . . . .

Trim Cylinder Specifications 6 - 3. . . . . . . . . . . . . . . Torque Specifications 6 - 3. . . . . . . . . . . . . . . . . . Lubricants, Sealers, and Adhesives 6 - 3. . . . . . Special Tools 6 - 3. . . . . . . . . . . . . . . . . . . . . . . . . .

Special Information 6 - 4. . . . . . . . . . . . . . . . . . . . . . . Bravo Three Notice: Trim “In” Limit Blocks or Limit Pin 6 - 4. . . . . . . . . . . . . . . . . . . . Trim “In” Limit Blocks - Removal, Installation or Adjustment 6 - 5. . . . . . . . . . . . . .

Trim Cylinder Exploded Views 6 - 6. . . . . . . . . . . . . Bravo and Blackhawk Trim Cylinders 6 - 6. . . . . Alpha One Gen. II Trim Cylinders 6 - 7. . . . . . . . Alpha Trim System Components 6 - 8. . . . . . . . . Bravo Trim System Components 6 - 9. . . . . . . . .

Trim System Wiring Diagrams 6 - 10. . . . . . . . . . . . Single Power Trim 6 - 10. . . . . . . . . . . . . . . . . . . . Dual Power Trim 6 - 11. . . . . . . . . . . . . . . . . . . . . . Dual Trim Control Box 6 - 12. . . . . . . . . . . . . . . . .

Power Trim Hydraulic Schematic 6 - 13. . . . . . . . . .

Power Trim 6 - 190-806534970 1096

Trim Pump Specifications

Valve Pressure Specifications

VALVEPRESSURE

VALVEPSI kPa

Up Circuit 2200-2600 15173-17932

Down Circuit 400-600 2759-4138

Electrical Specification

PUMP AMPERAGE PRESSUREDRAW PSI kPa

115 Amps at: 2200-2600 15173-17932

Torque Specification

DESCRIPTIONTORQUE

DESCRIPTIONlb. in. lb. ft. N·m

Up Pressure ReliefValve

70 7.9

Down Pressure Relief Valve

70 7.9

Thermal Relief Valve 70 7.9

Pump-to-AdaptorMounting Screws

70 7.9

Motor-to-AdaptorMounting Screws

25 2.8

Hex Plug Retainers 38-50 51-67

“Up” Pressure Hydraulic Hose(Black)

100-150

11-16

“Down” Pressure Hydraulic Hose(Gray)

100-150

11-16

Special Tools

DESCRIPTION PART NUMBER

Test Gauge Kit 91-52915A6

Torque Wrench (lb. in.) 91-66274

Lubricants, Adhesives, and Sealers

DESCRIPTION PART NUMBER

Quicksilver Power Trimand Steering Fluid

92-90100A1

Quicksilver 2-4-C Marine Lubricantwith Teflon

92-825407A12

Liquid Neoprene 92-25711-2

6 - 2 Power Trim 90-806534970 1096

Trim Pump Exploded View

Oildyne Trim Pump

73519

14

10

8 6

4

3

5

2

7

1

15

16

16

1615

21

11

13

18

17

18

19

20

23

24

25

50396(Factory Installed Valve) (Replacement Valve)

a

b12

22

1 -Adaptor2 -Coupling3 -Pump4 -Filter5 -O-ring-Motor End6 -O-ring, Reservoir End7 -Dipstick8 -Reservoir9 -Cap (With Vent Hole)10 -Screw (Includes O-ring)11 -End Cap w/Bearing Screw12 -Screw13 -O-ring14 -Screw15 -Brush Holder Kit 16 -Brush set17 -Armature18 -Thrust Washer19 -Field and Frame20 -Housing

21 -Screw22 -Relief Valve With:23-Spring24-Eyelet25-Check Ball

Replacement Relief Valve Color Code:Down Pressure: Green

Up Pressure: Blue

Thermal: Gold

Torque Specifications

a 75 lb. in. (8 N·m)

b 25 lb. in. (2.8 N·m)

Power Trim 6 - 390-806534970 1096

Trim Cylinder Specifications

Torque Specifications

DESCRIPTIONTORQUE

DESCRIPTIONlb. in. lb. ft. N·m

Piston Rod Bolt 15-20 20-27

End Cap 40-50 55-68

Anode Screw 30 3.4

Lubricants, Sealers, and Adhesives

DESCRIPTION PART NUMBER

Loctite 8831 92-823089-1

Quicksilver 2-4-C Marine Lubricant with Teflon

92-825407A12

Quicksilver Perfect Seal 92-34227--1

Quicksilver Power Trim and Steering Fluid

92-90100A12

Special Tools

DESCRIPTION PART NUMBER

Spanner Nut Wrench 91-821709

Large Pin Set 91-811907

Medium Pin Set 91-811908

Small Pin Set 91-811909

6 - 4 Power Trim 90-806534970 1096

Special InformationBravo Three Notice: Trim “In” LimitBlocks or Limit PinNOTE: Some earlier Bravo Three models will beequipped with Trim-In Limit Blocks, later model BravoOne, Two, and Three will have a Trim-In Limit Pin.

It has been brought to our attention that some boats(predominantly deep-Vee heavy boats) will roll up ontheir side under certain, specific, operating condi-tions. The roll can be either to port or starboard andmay be experienced while moving straight ahead, orwhile making a turn. The roll occurs most frequentlyat or near maximum speed, with the drive unittrimmed at or near full “In”. While the boat will not rollcompletely over, the roll may be sufficient to unseatthe operator or passengers, and thereby create anunsafe situation.

The roll is caused by “stern lift.” “Stern lift” can becreated by excessive drive unit trim “In.” Under theseextreme “stern lift”/“bow down” conditions instabilitycan be created which may cause the boat to roll.Weight distribution to the stern can reduce “stern lift”and, in some circumstances, eliminate the condition.Weight distribution in the bow, port or starboard, mayworsen the condition.

The Trim “In” limit devices reduce “stern lift” by pre-venting the drive unit from reaching the last few de-grees of full trim under. While this device should re-duce the rolling tendency, they may not eliminate thetendency entirely. The need for these trim “In” limitblocks or pin, and the effectiveness of them, can onlybe determined through boat testing and is ultimatelythe responsibility of the boat manufacturer.

! WARNING

It is recommended that only qualified personnelremove or adjust the Trim “In” Limit Blocks oradjust the Trim-In Limit Pin. Boat must be watertested after removing or adjusting the device toensure that the modified trim “In” range does notcause the boat to exhibit an undesirable boathandling characteristic if the drive unit istrimmed “In” at higher speeds. Increased trim“In” range may cause handling problems onsome boats which could result in personal injury.

IMPORTANT: On Bravo One, Two, and ThreeModels, the “Trim-In Limit Pin” (If equipped),must be properly positioned before installing thetrim cylinder anchor pin.

NOTE: When removing the stern drive unit, make anote of the position of the pin for reference when rein-stalling the drive unit.

1. If equipped, ensure that the Trim-In -Limit Pin ispositioned as shown for the appropriate Bravomodel.

75157

a

Bravo One and Two (Positioned Forward)

75158

a

Bravo Three (Positioned Aft)a - Trim-In Limit Pin

IMPORTANT: The position of the Trim-In Limit Pinon the Bravo Three stern drive unit should onlybe changed after the boat has been properlytested. Contact the boat manufacturer if you arenot sure of the original position for a particularboat application.

74516

ab

cd

e

fg

hi

d

J

Power Trim 6 - 590-806534970 1096

Trim “In” Limit Blocks - Removal,Installation or Adjustment

IMPORTANT: Prior to working on trim cylinders,make note of the position of Trim-In Limit Blocks,if so equipped.

! CAUTIONAvoid transom/drive alignment error or interfer-ence, or casting damage. Always install Trim “in”Limit Blocks with letters facing up (toward thegimbal ring clevis).

1. Disconnect the forward ends of both trim cylin-ders and remove the cylinders and their mount-ing hardware from the anchor pin. DO NOT dis-connect the trim hoses.

2. Slide the anchor pin out of the gimbal ring. Followinstructions “a”, “b” or “c”:

a. To remove blocks: Continue to slide anchorpin out until the trim limit blocks fall off of thepin.

b. To Install or adjust blocks to be 3/4 in.(19mm) of trim “In” limit : Place block “A” onthe port side and block “B” on the starboardside. Always install the blocks with the letteridentifiers facing up (toward the gimbal ringclevis).

a - Anchor Pinb - Flat Washer (Large I.D.)c - Snap Ringd - Rubber Bushings (2)e - Trim Cylinderf - Flat Washer (Small I.D.)g - Lock Nuth - Plastic Capi - Limits The Trim “IN” by 1 in. (25 mm)j - Limits the Trim “IN” By 3/4 In. (19mm)

c. To Install or adjust blocks to be 1 in.(25mm) of trim “In” limit : Place block “B” onthe port side and block “A” on the starboardside. Always install the blocks with the letteridentifiers facing up (toward the gimbal ringclevis).

3. Follow appropriate instructions “a” or “b”:

a. After removal: Push the anchor pin backthrough the gimbal ring.

b. After installation or adjustment: Push theanchor pin through the Trim “in” Limit Blocksand on through the gimbal ring.

4. Reinstall the trim cylinder(s) and mounting hard-ware.

5. Test the boat to ensure the proper trim “In” limitwas chosen.

NOTE: If these Trim “In” Limit Blocks do not providethe proper trim “In” that is required for your applica-tion, the following Quicksilver kits are available (DONOT use Trim “In” Limit Blocks with the followingkits). The following kits require internal changes tothe trim cylinders.

23-806445A3 - Trim “In” Limit Spacer Kit - Limits Trim“In” by 1/4 or 1/2 in.23-806445A2 -Trim “In” Limit Spacer Kit - Limits Trim“In” by 1-1/4 or 1-1/2 in.

6 - 6 Power Trim 90-806534970 1096

Trim Cylinder Exploded ViewsBravo and Blackhawk Trim Cylinders

73349

2

3

4

5

10

11

13

15

16

20

21

22

23

24

26

1

25

7

8

9

19

18

14

12

17

6

29

27

28

a

b

a

1 - Screws2 - Clamping Plate3 - Trim Cylinder4 - O-Ring5 - Floating Piston6 - Bolt7 - Washer8 - Spring Guide9 - Spring10- Spring Guide Washer11- Check Balls12- Shock Piston13- O-Ring14- Small O-Ring15- Continuity Spring16- Small O-Ring17- Large O-Ring18- End Cap19- Rod Scraper20- Washer21- Retaining Ring

22- Small O-Ring23- Piston Rod24- Anode25- Star Washer26- Screw27- Trim-In Limit Spacers (1/4 in.)28- Trim-In Limit Spacers (3/4 in.)29- Trim-In Limit Spacers (1-1/4 in.)

Lubricants, Sealers and Adhesives

Lubricate all internal parts with Quicksilver PowerTrim and Steering Fluid before reassembling

Torque Specification

a 15-20 lb. ft. (20-27 N·m)

b 40-50 lb. ft. (55-68 N·m)

Power Trim 6 - 790-806534970 1096

Alpha One Gen. II Trim Cylinders

74859

2 3

4

5

10

11

13

20

21

2223

24

26

1

25

19

18

12

17

6

1516

78

14

9

a

b

1 - Screws2 - Clamping Plate3 - Trim Cylinder4 - O-Ring5 - Floating Piston6 - Bolt7 - Spacer8 - Spring Guide Washer9 - Springs10- Check Ball Eyelets11- Check Balls12- Shock Piston13- O-Ring14- Small O-Ring15- Continuity Spring16- Small O-Ring17- Large O-Ring18- End Cap19- Rod Scraper20- Washer21- Retaining Ring

22- Small O-Ring23- Piston Rod24- Anode25- Star Washer26- Screw

Lubricants, Sealers and Adhesives

Lubricate all internal parts with Quicksilver PowerTrim and Steering Fluid before reassembling

Torque Specification

a 15-20 lb. ft. (20-27 N·m)

b 40-50 lb. ft. (55-68 N·m)

6 - 8 Power Trim 90-806534970 1096

Alpha Trim System Components

73317

5

8

9

7

3

3

6

10

119

8

10

11

1112

13

14

11

14

16

17

17

18

18

1

15

2

15

4

19

19

12

13

16

1 - “In”/“Down” Hydraulic Hose (Gray)2 - “Up”/“Out” Hydraulic Hose (Black)3 - Hydraulic Hose (Trim Cylinder to Connector)4 - Trim Cylinder (Starboard)5 - Trim Cylinder (Port)6 - Trim Cylinder Hose (Starboard)7 - Trim Cylinder Hose (Port)8 - Plate9 - Screw10 -Pin11-Bushing

12 -Washer13 -E-ring14 -Cap15 -Connector (Trim Pump)16 -Screw17 -Star Washer18 -Anode19 -Continuity Wire

Power Trim 6 - 990-806534970 1096

Bravo Trim System Components

73554

22

1 2

21

8 9

1213

14

15

5

22

3

7

3

6

10

1123

12

4

18

17

16

2425

26

24 25

26

1920

75271

24

DO NOT MIX

1 - ”In”/”Down” Hose to Trim Pump (Gray)2 - ”Up”/”Out” Hose to Trim Pump (Black)3 - Hose to Trim Cylinder4 - Starboard Trim Cylinder5 - Port Trim Cylinder6 - Starboard Trim Cylinder Hose7 - Port Trim Cylinder Hose8 - Plate9 - Screw10- Front Pin11- Washer12- Bushing

13- Washer14- Nut15- Cap16- Rear Pin17- Washer18- Bushing (Early Style)19- Washer20- Nut21- Cap22- Connector (Trim Pump)23- Retainer24- Bushing (Later Style)

73962

a - 20 Amp Fuseb - Pump Mounting Bracket Ground (-)c - “UP” Solenoidd - 110 Amp Fusee - “DOWN” Solenoidf - Trailer Switchg - Neutral Switch to Instrument Wiring Harnessh - Trim Limit Switch

b

d

e

g

a

h

BLK = BLACKBLU = BLUEBRN = BROWNGRY= GRAYGRN= GREENORN= ORANGEPNK = PINKPUR = PURPLERED = REDTAN = TANWHT= WHITEYEL = YELLOWLIT = LIGHT

DRK = DARK

f

c

6 - 10 Power Trim 90-806534970 1096

Trim System Wiring DiagramsSingle Power Trim

Power Trim 6 - 1190-806534970 1096

Dual Power Trim

22123

a

db c b c

f

g

e e

g

f

h

ii

h

b

J

k

l

lmn

o

p

BLK = BLACKBLU = BLUEBRN = BROWNGRY= GRAYGRN= GREENORN= ORANGEPNK = PINKPUR = PURPLERED = REDTAN = TANWHT= WHITEYEL = YELLOWLIT = LIGHT

DRK = DARK

a - Starboard Trim Pumpb - 20 Amp Fusec - Pump Mounting Bracket Ground (-)d - Port Trim Pumpe - “Up” Solenoidf - 110 Amp Fuseg - “Down” Solenoidh - Purple Sleevei - Blue Sleevej - Connect to Power Supply Side of the Ignition Switch

k - Connect to “I” Terminal on Gauge or 12 volt source on theSwitched side of the Ignition Switch

l - Brown Sleevem- Connect to Trim Position Sender Terminal Block or Merca-

thode controller (If Installed)n - (–) Negative to Groundo - Control Boxp - Trim Position Senders

6 - 12 Power Trim 90-806534970 1096

Dual Trim Control Box

22129

d

bc

e

a

a - Relay No. 1b - Relay No. 2c - Diode Moduled - Terminal Blocke - Control Panel

Power Trim 6 - 1390-806534970 1096

Power Trim Hydraulic Schematic

73552

2

5

78

5

34 6

1

9

1 - Shuttle2 - Pump Adaptor3 - “Up”/“Out” Pressure Relief Valve4 - Thermal Relief Valve5 - Trim Cylinder6 - “In”/“Down” Pressure Relief Valve7 - “Up”/“Out” Hose8 - “In”/“Down” Hose9 - Pilot Check Valves