Topics

SM leaking ATF fluid #solution

Rob Smith
 

Hello I have ATF fluid leaking from the gear lever on my gearbox.
Any suggestions?

Rob smith
Foresight
SM#152

Leopold Hauer
 

Hello
It is a easy repair, you must open the 4 screws besides the lever  and mount a new radial sealing ring (SD 20x26x4)  see foto. The sealing is part nr. 8image1.JPG

Leo
SM YinYang # 69 Fiji
Von meinem iPad gesendet

Am 14.01.2020 um 15:28 schrieb Rob Smith <robfromcornwall.1966@...>:

Hello I have ATF fluid leaking from the gear lever on my gearbox.
Any suggestions?

Rob smith
Foresight
SM#152

 

Rob,

I have not personally experienced this issue. Your ZF 25 holds 0.75 liters of fluid. Is it possibly overfilled? You do not screw in the dipstick to check the level.

If not, it probably is a worn sealing ring. If so, maybe this will help you:

image.png
5.2 Removing and disassembling the
actuating lever cover plate

5.2.1 Always set actuating lever to neutral
position.
5.2.2 Remove hex nuts (22) from cover
plate (9), using 13 mm spanner (wrench),
and take off spring washers (4).
5.2.3 Remove cover plate assembly (12),
lever (6) and actuating cam (11).
5.2.4 Remove screw (7) from lever (6).
Pull off lever (6). Remove actuating cam
(11) and needle bearing (70) only in
models ZF 12 M - 15 M - 25 M - 30 M.
Remove actuating cam sealing ring (8).

==========================

6.3 Assembling the shifting fork in
gearbox section side shifting cover

6.3.1 Insert shifting fork (15) into gearbox
section (1) side the actuating lever
in such a way that the long arm of the
fork points downwards.
6.3.2 Insert shifting rod (16) through
bores in gearbox and shifting fork.
6.3.3 Fit screw plug (17) to gearbox,
making certain that the clearance between
shifting rod (16) and screw plug
(17) is min. 0.5 mm (0.02 in).
Seal screw plug with Loctite 242 (ZF 3
M - 5 M only O-Ring).
6.3.4 Check shifting fork for easy
movability.
6.4 Pre-assembling the actuating
lever cover plate

Use punch tool to press sealing ring (8)
into cover plate (9). Spread antifriction
bearing grease between sealing lips.

6.4.1 Insert actuating cam assembly (11)
into cover plate (9).
6.4.2 Fit actuating lever (6).
IMPORTANT:
Clearance between actuating lever and
cover plate 0.5 mm (0.02 in).
6.4.3 Clamp actuating lever by means
of retaining screw (7), using a 13 mm
spanner (wrench). Screw in with torque
of 20 Nm.

--
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
   
View My Training Calendar
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On Tue, Jan 14, 2020 at 8:28 AM Rob Smith <robfromcornwall.1966@...> wrote:
Hello I have ATF fluid leaking from the gear lever on my gearbox.
Any suggestions?

Rob smith
Foresight
SM#152

Rob Smith
 

Bill
Many thanks for your speedy reply. I believe it's the seal that has gone as that is where it is leaking from. I will have a go at changing it. 

Many thanks for your help. 

Rob

FORESIGHT SM #152

On Tue, 14 Jan 2020, 16:25 CW Bill Rouse, <brouse@...> wrote:
Rob,

I have not personally experienced this issue. Your ZF 25 holds 0.75 liters of fluid. Is it possibly overfilled? You do not screw in the dipstick to check the level.

If not, it probably is a worn sealing ring. If so, maybe this will help you:

image.png
5.2 Removing and disassembling the
actuating lever cover plate

5.2.1 Always set actuating lever to neutral
position.
5.2.2 Remove hex nuts (22) from cover
plate (9), using 13 mm spanner (wrench),
and take off spring washers (4).
5.2.3 Remove cover plate assembly (12),
lever (6) and actuating cam (11).
5.2.4 Remove screw (7) from lever (6).
Pull off lever (6). Remove actuating cam
(11) and needle bearing (70) only in
models ZF 12 M - 15 M - 25 M - 30 M.
Remove actuating cam sealing ring (8).

==========================

6.3 Assembling the shifting fork in
gearbox section side shifting cover

6.3.1 Insert shifting fork (15) into gearbox
section (1) side the actuating lever
in such a way that the long arm of the
fork points downwards.
6.3.2 Insert shifting rod (16) through
bores in gearbox and shifting fork.
6.3.3 Fit screw plug (17) to gearbox,
making certain that the clearance between
shifting rod (16) and screw plug
(17) is min. 0.5 mm (0.02 in).
Seal screw plug with Loctite 242 (ZF 3
M - 5 M only O-Ring).
6.3.4 Check shifting fork for easy
movability.
6.4 Pre-assembling the actuating
lever cover plate

Use punch tool to press sealing ring (8)
into cover plate (9). Spread antifriction
bearing grease between sealing lips.

6.4.1 Insert actuating cam assembly (11)
into cover plate (9).
6.4.2 Fit actuating lever (6).
IMPORTANT:
Clearance between actuating lever and
cover plate 0.5 mm (0.02 in).
6.4.3 Clamp actuating lever by means
of retaining screw (7), using a 13 mm
spanner (wrench). Screw in with torque
of 20 Nm.

--
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
   
View My Training Calendar
cloudHQPowered by
cloudHQ


On Tue, Jan 14, 2020 at 8:28 AM Rob Smith <robfromcornwall.1966@...> wrote:
Hello I have ATF fluid leaking from the gear lever on my gearbox.
Any suggestions?

Rob smith
Foresight
SM#152