Regal Velvet Drive 71L Series Bedienungsanleitung

A Regal Brand

www.regalbeloit.com

Marine Transmission

Service Manual

71L & 72L Series

A Regal Brand

1208 Old Norris Road

Liberty, SC 29657

PH: 864-843-9234

FAX: 864-843-1276

EMAIL: [email protected]

www.velvetdrive.com

Velvet Drive®Transmissions (VDT) has been a leader in the marine industry for over 50 years. Founded in 1948, VDT

has been a Regal company since its purchase from Borg Warner in 1995. VDT products feature quiet, smooth

operation and are manufactured using the highest quality industry standards. Applications include tournament ski

boats, inboard cruisers, sport ﬁshing boats, sailboats, trawlers, center consoles, runabouts, yachts and high

performance boats.

The Liberty Series transmission provides the marine enthusiast the most power density transmission available,

offering more horsepower per cubic inch of space, freeing up more usable boat space where it counts.

Complete Line of Marine Transmissions - Electric Shift Available on Most Models

Series Model Description Ratios Available

71C 1017 In-Line 1.00

71C 1017W In-Line Wakeboard 1.00

72C 1018 High Capacity 1.00, 1.52, 1.88, 2.10, 2.57, 2.91

72V 1005 15 Degree V-Drive Cast Iron 1.21, 1.51, 1.99, 2.50

72L 3007 In Line/Wakeboard 1:1

72L-V 3008 V-Drive/Wakeboard 1.5:1, 1.25:1

72L-X 3011 High Capacity In-Line 1:1

72L-H 3010 High Performance 1:1

72L-HP 3009 High Performance 1:1

Liberty A 3001 8 Degree Down Angle Aluminum 1.00, 1.25, 1.50, 2.00, 2.50, 2.80

Liberty 6000A 3021 8 Degree Down Angle Aluminum 1.00, 1.25, 1.50, 2.00, 2.50, 2.80

Liberty V 2002 12 Degree V-Drive Aluminum 1.25, 1.51, 2.00, 2.50

American Innovation

T R A N S M I S S I O N S

Transmission

Assembly

Number

Family

Group

Transmission Ratios

CommentsForward Reverse

3007000M01 72L 1:1 1.10:1 MANUAL SHIFT

3007000E01 72L 1:1 1.10:1 ELECTRIC SHIFT

3008000M01 72LV 1.50:1 1.65:1 MANUAL SHIFT V-DRIVE (FRONT MOUNT)

3008000M02 72LV 1.25:1 1.37:1 MANUAL SHIFT V-DRIVE (FRONT MOUNT)

3008000M03 72LV 2.00:1 2.20:1 MANUAL SHIFT V-DRIVE (FRONT MOUNT)

3008000MT1 72LVTS 1.50:1 1.65:1 MANUAL SHIFT V-DRIVE (THRU SHAFT)

3008000MT2 72LVTS 1.25:1 1.37:1 MANUAL SHIFT V-DRIVE (THRU SHAFT)

3008000MT3 72LVTS 2.00:1 2.20:1 MANUAL SHIFT V-DRIVE (THRU SHAFT)

3008000E01 72LV 1.50:1 1.65:1 ELECTRIC SHIFT V-DRIVE (FRONT MOUNT)

3008000E02 72LV 1.25:1 1.37:1 ELECTRIC SHIFT V-DRIVE (FRONT MOUNT)

3008000E03 72LV 2.00:1 2.20:1 ELECTRIC SHIFT V-DRIVE (FRONT MOUNT)

3008000ET1 72LVTS 1.50:1 1.65:1 ELECTRIC SHIFT V-DRIVE (THRU SHAFT)

3008000ET2 72LVTS 1.25:1 1.37:1 ELECTRIC SHIFT V-DRIVE (THRU SHAFT)

3008000ET3 72LVTS 2.00:1 2.20:1 ELECTRIC SHIFT V-DRIVE (THRU SHAFT)

3009000M01 72LHP 1:1 1.10:1 MANUAL SHIFT

3009000M06 72LHP 1:1 1.10:1 MANUAL SHIFT MERC 6 CLOSE COUPLE

3009000E01 72LHP 1:1 1.10:1 ELECTRIC SHIFT

3009000E06 72LHP 1:1 1.10:1 ELECTRIC SHIFT MERC 6 CLOSE COUPLE

3010000M01 72LH 1:1 1.10:1 MANUAL SHIFT

3010000M06 72LH 1:1 1.10:1 MANUAL SHIFT MERC 6 CLOSE COUPLE

3010000E01 72LH 1:1 1.10:1 ELECTRIC SHIFT

3010000E06 72LH 1:1 1.10:1 ELECTRIC SHIFT MERC 6 CLOSE COUPLE

3011000M01 72LX 1:1 1.10:1 MANUAL SHIFT

3011000M06 72LX 1:1 1.10:1 MANUAL SHIFT MERC 6 CLOSE COUPLE

3011000E01 72LX 1:1 1.10:1 ELECTRIC SHIFT

3011000E06 72LX 1:1 1.10:1 ELECTRIC SHIFT MERC 6 CLOSE COUPLE

3018000M01 71LV 1.5 1.5 MANUAL SHIFT V-DRIVE (FRONT MOUNT)

3018000M02 71LV 1.25 1.25 MANUAL SHIFT V-DRIVE (FRONT MOUNT)

3018000MT1 71LVTS 1.5 1.5 MANUAL SHIFT V-DRIVE (THRU SHAFT)

3018000MT2 71LVTS 1.25 1.25 MANUAL SHIFT V-DRIVE (THRU SHAFT)

3018000E01 71LV 1.5 1.5 ELECTRIC SHIFT V-DRIVE (FRONT MOUNT)

3018000E02 71LV 1.25 1.25 ELECTRIC SHIFT V-DRIVE (FRONT MOUNT)

3018000ET1 71LVTS 1.5 1.5 ELECTRIC SHIFT V-DRIVE (THRU SHAFT)

3018000ET2 71LVTS 1.25 1.25 ELECTRIC SHIFT V-DRIVE (THRU SHAFT)

3019000M01 71LV 1:1 1:1 MANUAL SHIFT

3019000E01 71LV 1:1 1:1 ELECTRIC SHIFT

Models Covered In This Manual

T R A N S M I S S I O N S

SEGMENT A: 71L & 72L / 71LV & 72LV

Section Page

I Description

Introduction 5

Theory of Operation 5

II Inspection

General 8

Scheduled Inspection 8

III Maintenance

General 9

Lubrication 9

IV Troubleshooting

General 11

Guidelines 11

V Overhaul

General 14

Disassembly 14

Cleaning 14

Inspection 14

Repair 14

Assembly 15

VI Installation 25

VII Specification 34

VIII Propeller Shaft Alignment &

Five Inch Flange Specifications 36

SEGMENT B: V-DRIVES

Section Page

I General 39

II Repair Kits 43

SEGMENT C: 72LH & 72LHP

Section Page

I Overhaul 45

Assembly 46

II Installation 55

III Specification 56

IV Propeller Shaft Alignment 36

Rebuild Kits 61

Table of Contents

T R A N S M I S S I O N S

Table of Contents

Title Page

List of Tables

1 Technical Specifications Models 3007, 3008, 3011, 3018 & 3019................................34

Technical Specifications Models 3009 & 3010 ...............................................56

2 Scheduled Inspections ..................................................................8

3 Troubleshooting ......................................................................11

4 Bolt and Fastener Torques (Non-Lubricated) ...........................................34 & 56

5 Test Pressures Models 3007, 3008, 3011, 3018 & 3019 .......................................34

Test Pressures Models 3009 & 3010 ......................................................56

T R A N S M I S S I O N S

The following international symbols are used in this service manual.

This symbol warns of possible personal injury

This symbol warns of possible damage to transmissions.

OEM Original Equipment Manufacturer (Boat/Engine Manufacturer)

WARNING

CAUTION

SEGMENT A

71L & 72L / 71LV & 72LV

71L AND 72L

72LX

72LH AND 72LHP

71LV AND 72LV

71LVTS AND 72LVTS

71L AND 72L

72LX

72LH AND 72LHP

71LV AND 72LV

71LVTS AND 72LVTS

T R A N S M I S S I O N S

Section I Description

INTRODUCTION (see figure 1)

The 71L and 72L transmissions consist of a planetary

gear set and multiple disc clutches. The input and out-

put shafts are in line.

Hydraulic pressure is provided by a crescent type

pump. The pump is driven at engine speed by the input

shaft. Oil from the pump is sent to the control valve.

The positions on the control valve are forward-neutral-

reverse. An internal regulator valve controls system

pressure. Oil discharged by the regulator valve is sent

to the oil cooler.

THEORY OF OPERATION

General: Forward is direct drive. A planetary gear set

(1.1 to 1.0 ratio for 72L and 1.0 to 1.0 ratio for 71L) is

used to obtain reverse.

Figure 1. 71L & 72L Transmission Assembly

Description Model

71L

Model

72L

Model 71LV

& 71LVTS

Model 72L

& 72LVTS

Model

72LX

Model

72LH

Model

72LHP

Speeds Fwd.

and Rev.

Fwd.

and Rev.

Fwd.

and Rev.

Fwd.

and Rev.

Fwd.

and Rev.

Fwd.

and Rev.

Fwd.

and Rev.

Approx. Wt. 67 71 113 117 71 85 87

Table 1. Technical Specifications

ID TAG ID TAG ID TAG

71L AND 72L

72LX

72LH AND 72LHP

71LV AND 72LV

71LVTS AND 72LVTS

ID TAG ID TAG

3007 & 3019

3018 & 3008 3018 & 3008

3010 & 30093011

T R A N S M I S S I O N S

Section I Description

The transmission oil pump is driven by the input shaft.

It supplies oil pressure to operate the clutch packs,

lubricate parts, and provide cooling.

A damper plate is bolted to the engine flywheel. The

damper plate is splined to connect to the input shaft.

The damper plate reduces torsional vibrations to the

transmission from the engine (see figure 2).

Forward: The forward clutch is applied hydraulically

when the shift lever is placed in the forward position.

This connects the input shaft to the output shaft. The

unit then transmits power at a 1 to 1 speed ratio in the

same direction of rotation as the engine (see figure 3).

Reverse: The reverse clutch is applied hydraulically

when the shift level is placed in the reverse position

(see figure 4). The applied clutch holds the ring gear.

The input shaft and sun gear, driven by the engine,

drive pinions, which drive the carrier output shaft. The

output shaft turns opposite to engine rotation at a 1.1

to 1 speed reduction ratio for model 72L and 1 to 1

speed ratio for model 71L.

Figure 2. Typical Assembly Figure 4. Reverse Power Flow

Figure 3. Forward Power Flow

CAUTION - TRANSMISSION FACE MUST BE

CLEAN AND FREE OF DEBRIS OR PAINT. STONE

FACE TO REMOVE ANY HANDLING DAMAGE

BEFORE INSTALLATION.

TRANSMISSION

T R A N S M I S S I O N S

Section I Description

Hydraulic Circuit: Oil from the sump enters the pump

suction passage and is directed to the pump (see figure

5). The pump supplies oil under pressure through pas-

sages to the control and regulator valves.

Oil pressure on the eng of the regulator valve moves

the valve, compressing the spring. This movement

allows oil to flow to the cooler.

Selector Valve: The selector valve shifts the transmis-

sion from neutral to forward or reverse. When selector

valve is placed in the forward position, oil is directed to

the forward clutch. When the selector valve is placed in

reverse position, oil is fed to the reverse clutch. When

one clutch is engaged the other is exhausted by a slot

in the selector valve. Electric shift versions forward and

reverse are controlled by an electric solenoid.

Figure 5. Hydraulic Circuit Schematic

Model 71L & 72L (Electric Shift Shown)

T R A N S M I S S I O N S

Section II Inspection

GENERAL

The transmission, cooler, cooler lines, and control link-

age should be inspected at regular intervals. Regular

inspections will ensure proper operation and help

detect minor problems that can be corrected before

they cause a transmission failure.

SCHEDULED INSPECTIONS (see table 2)

The following recommended inspection intervals are

based on normal operating conditions. Intervals should

be adjusted for extremes of temperature or other

adverse operating conditions.

Table 2. Scheduled Inspections

Inspection Task

Inspection Interval

Weekly

Periodic

(1 month or 100 hours,

whichever comes first)

Safety

(annual or 1000 hours,

whichever comes first)

GENERAL

Inspect control linkage and shift lever for operation.

Therese should be no sticking, binding, or looseness.

OIL COOLER AND LINKS

Inspect cooler for signs of leakage, damage, or loose

mounting bolts.

Inspect all connection points for signs of leakage.

TRANSMISSION

Inspect for damage or signs of leakage around

housing and/or bolts.

Remove dipstick. Check oil for signs of water or other

contaminants. Check (smell) oil for signs of burnt oil

(overheating). If found, replace fluid.

See Maintenance.

WARNING

CAUTION

WARNING: Failure to perform these

inspections at required intervals can

result in injury to personnel.

X X

CAUTION: Failure to perform these

inspections at required intervals can

result in transmission failure.

CAUTION

CAUTION: If oil is discolored or has

been overheated (above 190°F) it

must be replaced.

CAUTION

CAUTION: Check mounting bolts for

tightness. If loose, tighten to torque

specified in OEM manual.

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