BENDIX TC-2 TRAILER CONTROL BRAKE VALVE Handmatig - Pagina 3
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Adjusting Ring
Cam
Gasket
Piston
O-Ring
Piston
Return Spring
Cover
O-Ring
Delivery Port
FIGURE 3 - SECTIONAL VIEW
ASSEMBLY
Prior to assembly, lubricate the body and cover bores, cam
and cam follower, piston o-ring, and cover top with Dow
Corning 55-M pneumatic grease (Bendix piece number
291126).
1. Press inlet valve on stem. A little water in the boot valve
or some soap on the stem will make it easier to press
on the inlet valve.
2. PIace stem with inlet valve installed in inlet seat. Insert
some object such as a cap screw to hold the inlet valve
up against its seat.
3. Position spring and exhaust valve guide.
4. Depress guide and spring, then press exhaust valve
on stem.
5. Place seal o-ring over insert seat and with cap screws
and lock washers install inlet and exhaust insert in body.
Recommended torque on insert cap screws is 60 to 80
inch pounds.
6. Install piston return spring.
7. Install piston o-ring on piston and install piston in
body.
8. Install adjusting ring in cover and screw it down until it
is fl ush with top of cover.
9. Place cam follower and cam in cover.
10. Position graduating spring and gasket in body.
Adjusting Ring
Lock Washer
Head
O-Ring
Cam Follower
Body
Graduating Spring
Exhaust Valve
Supply Port
Exhaust Port
Spring
Stem
™
TC-2
Brake
Valve Insert
Inlet Valve
Seat
Inlet Valve
Head Seal
O-Ring
11. Connect body to cover; tighten cap screws evenly and
torque to 75-95 inch pounds.
12. Install adjusting ring lock washer, head seal o-ring, and
head.
13. Install set screw in head of remote-operated type
valves. At this stage, before installing handle and
spirol pin of handle-operated type valve, if facilities
are available the rebuilt valve should be tested and
adjusted. If facilities are not available, the valve can
be tested on the vehicle.
TESTING REBUILT TC-2
Perform "Operating and Leakage Tests" as outlined in
"Service Checks" section.
ADJUSTMENT
Generally, the TC-2
reservoir pressure; however, there are a few exceptions
in special applications.
1. If the delivered pressure is below specifi ed fi nal delivery
pressure, it can be adjusted by removing the head and
adjusting ring lock washer and rotating the adjusting
ring clockwise to raise the delivery pressure.
2. If the delivery pressure is above specifi ed fi nal delivery
pressure, it can be lowered by rotating the adjusting
ring counterclockwise.
Spirol Pin
O-Ring
Handle
™
BRAKE VALVE
™
brake valve should deliver full
Knob
Head
3