BENDIX R-14V 매뉴얼 - 페이지 3

{카테고리_이름} BENDIX R-14V에 대한 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. BENDIX R-14V 6 페이지. Universal service replacement relay valves kit
BENDIX R-14V에 대해서도 마찬가지입니다: 설치 지침 매뉴얼 (6 페이지)

페이지 인쇄

No two vehicles operate under identical conditions, as a

result, maintenance intervals may vary. Experience is a

valuable guide in determining the best maintenance interval

for air brake system components. At a minimum, the valve

should be inspected every 6 months or 1500 operating hours,

whichever comes first, for proper operation. Should the valve

not meet the elements of the operational tests noted in this

document, further investigation and service of the valve may

be required.

OPERATIONAL AND LEAKAGE TEST

1. Chock the wheels, fully charge the air brake system

and adjust the brakes.

2. Make several brake applications and check for prompt

application and release at each wheel.

3. Check for inlet valve and o-ring leakage.

A. Make this check with the service brakes released

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when the R-12

or R-14

service brakes.

B. Make the check with the spring brakes applied

(PARK) when the R-14

spring brakes. Coat the exhaust port and the area

around the retaining ring with a soap solution; a 1"

bubble in 3 seconds leakage is permitted.

4. Check for exhaust valve leakage.

A. Make this check with the service brakes fully applied

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if the R-12

or R-14

B. Make this check with the spring brakes fully released

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if the R-14

valve is used to control the spring brakes.

Coat the exhaust port with a soap solution; a 1" bubble

in 3 seconds leakage is permitted. Coat the outside

of the valve where the cover joins the body to check

for seal ring leakage; no leakage is permitted.

5. If the R-14

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valve is used to control the spring brakes,

place the park control in the released position and coat

the balance port with a soap solution to check the

diaphragm and its seat. Leakage equivalent to a 1" bubble

in 3 seconds is permitted.

Note: If the anti-compound feature is in use, the line attached

to the balance port must be disconnected to perform this

test.

If the valves do not function as described above, or if leakage

is excessive, it is recommended that the valves be replaced

with new or remanufactured units or repaired with genuine

Bendix parts, available at any authorized Bendix parts outlet.

REMOVAL AND INSTALLATION

REMOVAL

1. Block and hold vehicle by means other than air brakes.

2. Drain air brake system reservoirs.

3. If entire valve is to be removed, identify air lines to facilitate

installation.

4. Disconnect air lines from valve* .

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valve is used to control the

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valve is used to control the

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valve control the service brakes.

5. Remove valve from reservoir or if remotely mounted,

remove mounting bolts and then valve.

*It is generally not necessary to remove entire valve to service

the inlet/exhaust valve. The inlet/exhaust valve insert can be

removed by removing the snap ring, exhaust cover assembly

and then inlet/exhaust valve.

Caution: Drain all reservoirs before attempting to remove

the inlet exhaust valve.

DISASSEMBLY

Note: Prior to disassembly, mark the location of the

mounting bracket to the cover and the cover to the body.

1. Remove the four (4) cap screws and lockwashers

securing the cover to the body.

2. Remove the cover, sealing ring, and mounting bracket.

3. Remove the piston and o-ring from the body.

4. While depressing the exhaust cover, remove the retaining

ring and slowly relax the spring beneath the exhaust

cover.

5. Remove the exhaust cover assembly and o-rings.

6. Remove the inlet/exhaust valve return spring from the

body.

7. Remove the inlet/exhaust valve from the body.

8. Remove the valve retainer from the inlet/exhaust valve.

9. Remove the Phillips head screw and exhaust cover from

the R-14

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valve cover.

10. Remove the service port cap nut and o-ring from the

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R-14

valve.

11. Remove the diaphragm from the R-14

CLEANING AND INSPECTION

1. Wash all metal parts in mineral spirits and dry them

thoroughly.

(Note: When rebuilding, all springs and all rubber parts

should be replaced.)

2. Inspect all metal parts for deterioration and wear, as

evidenced by scratches, scoring and corrosion.

3. Inspect the exhaust valve seat on the relay piston for

nicks and scratches which could cause excessive

leakage.

4. Inspect the inlet valve seat in the body for scratches and

nicks, which could cause excessive leakage.

5. Inspect the exhaust seat of the quick release diaphragm

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in the R-14

valve cover and make sure all internal air

passages in this area are open and clean and free of

nicks and scratches.

6. Replace all parts not considered serviceable during these

inspections and all springs and rubber parts. Use only

genuine Bendix replacement parts, available from any

authorized Bendix parts outlet.

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valve cover.