LOW/REVERSE BRAKE SERVO COMPONENT DISASSEMBLY/ASSEMBLY

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Disassembly

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1	Control valve spring retainer
2	Spring
3	Low/reverse brake servo check valve
4	Low/reverse brake servo plate
5	Spring
6	Low/reverse brake servo piston and seal
7	O-ring
8	Low/reverse brake servo cover

1.  Remove the control valve spring retainer.

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2.  Remove the low/reverse brake servo spring and check valve.

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Warning

•  The upper and lower servo covers are under spring tension. Use care when separating the 2 halves. Failure to follow these instructions can result in personal injury.

3.  Remove the low/reverse brake servo plate by turning in either direction to release.

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•  Align the arrow on the servo plate with any slot on the cover.

Note

•  Tabs on servo plate mate with slots on cover every 120 degrees.

4.  Remove the spring.

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5.  Remove the low/reverse brake servo piston and seal component.

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•  Inspect the seal for damage, install a new low/reverse brake servo piston if necessary.

6.  Remove and discard the low/reverse brake servo piston seal.

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Assembly

1.  Lubricate and install a new low/reverse brake servo piston seal.

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Note

•  Try not to roll the seal onto the housing when installing the seal, or damage to the seal can occur.

2.  Lubricate and install the low/reverse brake servo piston and seal component.

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3.  Install the spring.

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Warning

•  The upper and lower servo covers are under spring tension. Use care when assembling the 2 halves. Failure to follow these instructions can result in personal injury.

Caution

•  The arrow on the servo plate must be aligned evenly between any 2 slots on the cover.

4.  Install the low/reverse brake servo plate.

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5.  Install the spring and low/reverse brake servocheck valve.

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6.  Install the control valve spring retainer.

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