Mercedes-Benz Sprinter / Dodge Sprinter. Manual — part 462

HOLDING CLUTCH B1

DISASSEMBLY

(1) Remove the teflon rings (1) (Fig. 167) from the

B1 plate carrier hub (2).

Fig. 167 Remove the Teflon Rings

1 - TEFLON RINGS
2 - PLATE CARRIER HUB

VA

AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION

21 - 143

(2) Remove snap-ring (7) (Fig. 168).
(3) Remove multiple-disc pack (6) and disc spring

(5) from outer multiple-disc carrier. Note which
clutch disc is removed just prior to the disc spring (5)
for re-assembly. If the clutch discs are re-used, this
disc must be returned to its original position on top
of the disc spring.

(4) Place the Multi-use Spring Compressor 8900

(8) (Fig. 168) on disc spring (3) and compress the
spring until the snap-ring (4) is exposed.

(5) Remove snap-ring (4).
(6) Remove piston (2) from the outer multiple-disc

carrier by carefully blowing compressed air into the
bore (A).

Fig. 168 Holding Clutch B1

1 - HOLDING CLUTCH B1 OUTER CARRIER

5 - DISC SPRING

2 - PISTON

6 - MULTIPLE DISC PACK

3 - DISC SPRING

7 - SNAP-RING

4 - SNAP-RING

8 - MULTI-USE SPRING COMPRESSOR 8900

21 - 144

AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION

VA

ASSEMBLY

NOTE: Check vulcanized gasket, replace if neces-
sary.

(1) Install piston (2) (Fig. 169) in outer multiple-

disc carrier (1).

(2) Place compressor (8) on disc spring (3) and

compress until the groove of the snap-ring is exposed.

NOTE: The collar of the snap-ring must point
towards the multiple-disc pack. After installing,
check snap-ring for correct seat.

(3) Insert snap-ring (4) (Fig. 169).

(4) Insert disc spring (2) (Fig. 170) in the outer

multiple-disc carrier. Observe the disc spring (2)
installation position. The lugs of the disc spring (2)

Fig. 169 Holding Clutch B1

1 - HOLDING CLUTCH B1 OUTER CARRIER

5 - DISC SPRING

2 - PISTON

6 - MULTIPLE DISC PACK

3 - DISC SPRING

7 - SNAP-RING

4 - SNAP-RING

8 - MULTI-USE SPRING COMPRESSOR 8900

Fig. 170 Install the Disc Spring

1 - B1 MULTIPLE-DISC CARRIER
2 - DISC SPRING

VA

AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION

21 - 145

washer must align with the 3 raised pads (arrow) of
the B1 multiple-disc carrier (1). The cone of the
spring washer must point downwards.

(5) Insert the multiple-disc pack (6) in the outer

multiple-disc carrier and measure the clutch clear-
ance.

NOTE: Pay attention to the sequence of discs. If the
original clutch discs are reused, be sure to return
the disc identified on disassembly as belonging on
top of the disc spring (5) to its original location.

CAUTION: When working with double sided friction
discs, an externally lugged steel plate is installed
first, followed by a friction disc, and continuing on
until all the required discs are installed. When work-
ing with single sided friction discs, an externally
lugged disc is installed first, followed by an inter-
nally lugged disc, and continuing on until all the
required discs are installed. All single sided discs
are installed with the friction side up.

NOTE: Place new friction multiple-discs in ATF fluid
for one hour before installing.

(6) Measure B1 clutch clearance by mounting

Pressing Tool 8901 (1) (Fig. 171) on outer multiple
disc.

(7) Using a lever press (Fig. 171), compress press-

ing tool as far as the stop (then the marking ring is
still visible, see small arrow).

(8) For transmissions using double sided friction

discs, use a feeler gauge to determine the play “L”
(Fig. 172) at three points between the snap-ring (6)
and outer multiple-disc (4). During the measurement,
the snap-ring (6) must contact the upper bearing sur-
face of the groove in the outer multiple-disc carrier
(5). The correct clearance for transmissions using
double sided friction discs is 2.3-2.7 mm (0.091-0.106
in.) for two friction disc versions, 2.7-3.1 mm (0.106-
0.122 in.) for three disc versions, and 3.0-3.4 mm
(0.118-0.134 in.) for four disc versions.

(9) Adjust with snap-ring (6), if necessary. Snap-

rings are available in thicknesses of 2.6 mm (0.102
in.), 2.9 mm (0.114 in.), 3.2 mm (0.126 in.), 3.5 mm
(0.138 in.), 3.8 mm (0.150 in.), and 4.1 mm (0.162
in.).

Fig. 171 Measure B1 Clutch Clearance

1 - PRESSING TOOL 8901
2 - B1 CLUTCH OUTER CARRIER

Fig. 172 B1 Clutch Stack-up - Double Sided Discs

1 - DISC SPRING
2 - OUTER MULTIPLE DISC - 1.8 mm (0.071 IN.)
3 - OUTER MULTIPLE DISC - 2.8 mm (0.110 IN.)
4 - OUTER MULTIPLE DISC - 4.0 mm (0.158 IN.)
5 - B1 OUTER CARRIER
6 - SNAP-RING
7 - INNER MULTIPLE DISCS
8 - PISTON

21 - 146

AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION

VA