Isuzu KB P190. Manual - part 190

 

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Isuzu KB P190. Manual - part 190

 

 

BRAKES  5C-61 

 

 

   

 

RTW75CSH002701 

 

Important Operation-Removal 

1. Brake pipe 
When hurdling, be careful not to spill brake fluid over the 
painted surfaces, as damage to the paint finish will result. 
2.  Master Cylinder Fixing Nut 

3. Bracket 

4.  Master Cylinder Assembly 
NOTE: 
When removing the master cylinder from the vacuum booster,
be sure to get rid of the internal negative pressure of the 
vacuum booster (by, for instance, disconnecting the vacuum
hose) in advance. 
If any negative pressure remains in the vacuum booster, the
piston may possibly come out when the master cylinder is
being removed, letting the brake fluid run out. 
While removing the master cylinder, do not hold the piston as it 
can be easily pulled out. 

 
 

 

Inspection and Repair 

Vacuum Hose (The built in check valve) 

360R300002 

 

 

1) Inspect the check valve, which is installed inside the

vacuum hose. 

2)  Blow air into the hose from the booster side as shown in 

the illustration.  The air should pass freely through the

hose. 

3)  Blow air into the hose from the engine side.  The check

valve should close to block the passage of air.

The vacuum hose and built-in check valve must be 

replaced as a set if either is found to be defective. 

 

 

Important Operation-Installation 

10. Vacuum Booster Assembly 
Note:  
•  Adjustment of push rod of vacuum booster is not carried

out. When vacuum booster is damaged it exchanges for a

new article. (Push rod is adjusted) 

•  Measurement of primary piston position by the side of

master cylinder is unnecessary. 

9. Spacer 

8. Gasket 

7.  Vacuum Booster Fixing Nut 

6. Snap Pin 
Install the vacuum booster assembly to the dash panel and
pedal mounting bracket. 
 

5C-62  BRAKES 

 

360r300003 

5. Vacuum Hose 
The check valve (2) is built-in to the vacuum hose. 
When installing the vacuum hose make sure that the arrow on 
the hose is facing the engine (1). 
Note:  
•  Do not apply oil to the vacuum hose. 
•  Installation direction is very important.  The booster will not

operate if the vacuum hose is installed in the wrong

direction. 

 

 

BRAKES  5C-63 

  DISASSEMBLY 

 

VACUUM BOOSTER ASSEMBLY 

 

 

 

 

 

Disassembly Steps 

 

1. Clevis; Yoke 

 

2. Nut; VLV rod 

 

3. Retainer; Guard 

 

4. Guard; VLV body 

 5. 

Silencer 

 6. 

Filter 

 

 

 

 
 
 
 
 

5C-64  BRAKES 

  REASSEMBLY 

VACUUM BOOSTER ASSEMBLY 

 

 

 

 

Reassembly Steps 

 1. 

Filter 

 2. 

Silencer 

 

3. Guard; VLV body 

▲  4. Retainer; Guard 
▲  5. Nut; VLV rod 
▲  6. Clevis; Yoke 

 

 

 

RTW75CSH002901 

 

 
 
 

Important Operations 

4. Retainer; Guard 
Ensure that the lug of the inner surface is fitted into the groove 
of the ROD. 
 
5.  Nut; VLV Rod 

Install the nut. 

 

 

 

 

 

 

 

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