BENDIX R-12P PILOT RELAY VALVE 매뉴얼 - 페이지 7

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FIGURE 10 - EXPLODED VIEW

INSTALLATION

1. Use the mounting bracket provided, or, if securing the

valve to a reservoir, use a Schedule 80 (heavy wall)

short couple pipe nipple.

2. Reconnect all air lines to the valve using the

identiﬁ cation made during removal. Be sure to use pipe

thread sealant.

3. Test all air ﬁ ttings for excessive leakage and tighten as

needed. Also, perform OPERATIONAL AND LEAKAGE

TESTS before placing the vehicle back into service.

DISASSEMBLY

The following procedure is for reference only. Always

have the appropriate maintenance kit on hand, and use

its instructions in lieu of those presented here. Refer to

Figure 10 throughout.

CAUTION: The R-12P

™

a bench vise during disassembly. However,

overclamping will cause damage to the valve

and result in leakage and/or malfunction. If a

vise is used, position the valve so the jaws

bear on the supply ports on opposing sides

of the valve's body.

FASTENER

valve may be lightly clamped in

COVER

LOAD

PISTON

RESERVE

SPRING

BODY

1. Remove the four fasteners that secure the cover to the

body. Then slowly remove the cover.

2. Remove and discard the small o-ring(1) that seals the

internal channel and the large o-ring(2) between the

cover and the body.

3. Remove the load piston from the cover. Note: If

necessary, use approximately 20 psi of shop air,

directed into the load piston's air passage in the cover,

to dislodge it. CAUTION: The piston will leave the cover

with some force.

4. Remove and discard the load piston's o-ring(3).

5. Remove the reserve spring and the relay piston from the

body. Remove and discard the relay piston's o-rings(4)

and (5).

6. While holding exhaust cover(7), remove and discard

the snap ring(6) that secures the cover to the body.

7. Remove and discard exhaust cover(7) and its o-rings(8)

and (9).

8. Remove and discard valve spring(10), valve retainer(11),

and inlet/exhaust valve(12) from the body.

RELAY PISTON