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Brake Master

The document provides step-by-step instructions for disassembling and assembling a brake valve, specifically detailing the removal of various components such as the bellows, pistons, seals, and check valve parts. It emphasizes the importance of noting the direction of seals during disassembly. The assembly process is to be conducted in the reverse order of disassembly.

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Dāvis Grahoļskis
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15 views3 pages

Brake Master

The document provides step-by-step instructions for disassembling and assembling a brake valve, specifically detailing the removal of various components such as the bellows, pistons, seals, and check valve parts. It emphasizes the importance of noting the direction of seals during disassembly. The assembly process is to be conducted in the reverse order of disassembly.

Uploaded by

Dāvis Grahoļskis
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Master Cylinder

Disassemble & assemble brake valve

1. Take off bellows (4) and lift push rod (3), remove vent air (25) and bolts (28).

2. Separate the front housing (1) and rear housing (2), remove servo spring (10), servo piston (9) and master
piston (5).

3. Take off seal u-cup (14) from master piston (5). Notice the direction of the seal.

Vehicle System 71 Disassembly & Assembly


4. Remove lock washer (6) and ball (7) from servo piston (9). Pull off piston ring (8), seal u-cup (13), seal u-cup
(12) and seal u-cup (11) in sequence. Notice the direction of each seal.

No Color Material

11 Translucency Urethane

12 Black NBR Hs70

13 Yellow Urethane

5. Remove relief plug (18), o-ring (19), spring (17), shims (16) and piston (15) from front housing (1).

Vehicle System 72 Disassembly & Assembly


6. Remove check valve parts from rear housing (2): plug (26), o-ring (27), cage (24), spring (23), ball (21) and o-
ring (22). Remove o-ring (20).

7. Assemble brake valve in the reverse order of disassembly.

Vehicle System 73 Disassembly & Assembly

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