Tilton 9000-Series Hydraulic Release Bearing (98-1121) - Manual

DESCRIPTION
Tilton's 9000 series hydraulic release bearing is a compact assembly that is adaptable for
many different applications. The bearing is self-adjusting for clutch wear maintaining "near
zero" clearance at all times. There is no extra return spring that pulls the piston back to the
bottomed position. In this respect, the piston works like the piston in a disc brake caliper,
returning only as far as forced. This is why with a Tilton hydraulic release bearing assembly
the clutch pedal feel does not change with clutch wear allowing the driver to make more
consistent shifts.
Note: The ports are -3AN that can accept straight or banjo fittings with
either a tapered seat or crush washer.
Note: If you need to take any measurements for clearance purposes fully
compress the piston. It is now partially extended.
INSTALLATION
There are a few different ways that the assembly can be mounted depending on the
particular part number and application. It is important to know that both ports are identi-
cal. It does not matter which port you use for the bleed port or the fill port. Position the
assembly in one of the two positions shown in Proper Bleed Port diagram to set up proper
bleed orientation.
1. In many applications the assembly and adapter bolt in place of the existing pilot tube
or in place of the original hydraulic release bearing.
2. For custom applications where you will make your own adapter see Figure 1 for the
mounting configuration. The two holes in the base are sized for both 1/4" and 6 mm
fasteners. You will want to locate (center) the assembly using the inner diameter of the
base. If there is an existing pilot tube it must be removed or trimmed to below the top
of the hydraulic release bearing base. Make sure that the adapter allows the HRB to be
installed in one of the two positions shown in the Proper Bleed Port diagram for cor-
rect bleed port set up.
If you are installing this assembly into a known application where the bearing clearance
and mounting configuration have already been determined proceed to the Hydraulic
Lines section.
9000-Series Hydraulic Release Bearing
INSTALLATION INSTRUCTIONS
98
-11
21
.600
MAX. STROKE
A
B
CONTACT
DIAMETER
1.73 (44mm)
AN-3 PORT, 3/8-24 UNF THREADS.
PORTS WILL ALLOW STRAIGHT AND
BANJO FITTINGS. 2 PL.
ACCEPTS 1/4 AND
6mm FASTENERS
O 1.175
O .266
1.35
1.35
O 3.15
55°
PART NUMBER SET UP HEIGHT "A" EXTENDED HEIGHT "B"
61-9002 1.95 2.55
61-9012 2.02 2.67
PROPER BLEED PORT SET UP.
20° ±5°
FROM VERTICAL
BLEED PORT
BOLT HOLE
±5° FROM
HORIZONTAL.
BLEED PORT 2. 1.
Position in one of two orientations for proper bleed port set up.
Figure 1