Parking Brake Lining Clearance and Lever Travel Adjustment on Isuzu Vehicles

This article mainly introduces how to Parking Brake Lining Clearance and Lever Travel Adjustment on Isuzu vehicles
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1. Jack up the rear axle until the wheels can be turned freely.






2. Remove one of the two check hole covers from the parking brake drum.

3. Rotate the brake drum to align the check hole with the adjusting screw.

4. Move the camshaft lever from side to side several times to center the brake shoes.

5. Insert a screwdriver into the check hole and rotate the adjusting screw by pushing it upward.

Continue doing this until the brake shoes begin to drag on the drum.





6. Back off the adjusting screw the specified number of notches.

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Legend

1. Screwdriver

2. Adjusting screw

3. Brake drum

4. Brake shoe

5. Clearance

6. Direction of brake shoe expansion (for 178

mm, 190 mm)

Brake Type (203 mm) is direction to the

counter rotation.



7. Reinstall the check hole cover.

8. Lower the rear wheels to the floor.


Parking Brake Lever Travel Adjustment

1. Fully set the parking brake lever and release it sev- eral times.

Leave the parking brake lever in the released posi- tion.

2. Loosen the parking brake control wire lock nut (1).

3. Turn the adjuster (2) to adjust the lever travel to the specified notches.







4. Retighten the control wire lock nut (1).

5. Check the parking brake lever travel (measured in notches).
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how to perform brake exhaust operation on Isuzu vehicles

This article mainly introduces how to perform brake exhaust operation on Isuzu vehicles
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Air in the brake hydraulic circuit will result in dangerous reduced braking efficiency.

The brake hydraulic circuit must be bled whenever the vehicle has been operated with the reservoir brake fluid level at an excessively low level or any time the brake pipes have been disconnected in the course of brake servicing.

The brake bleeding procedure requires the cooperative action of two men.




Brake Bleeding Procedure
Bleed the brake hydraulic circuit in the following se- quence.
LHD
Left-hand rear wheel (vehicle equipped with ABS) → Right-hand rear wheel → DSPV or LSPV → (If so equipped) → Right-hand front wheel → Left-hand front wheel
RHD
Left-hand rear wheel (vehicle equipped with ABS) → Right-hand rear wheel → DSPV or LSPV (If so equipped) → Left-hand front wheel → Right-hand front wheel






1. Check to make sure that the service area is well ventilated.
Apply the parking brake firmly. Start the engine and allow it to run until the vacuum pressure rises suf- ficiently.

Notice:
Brake booster (master-vac) will be adversely effected if bleeding operation is performed without running engine.


If the vehicle is equipped with ABS, be sure to remove the ABS fuse (60 A) from the fuse box before beginning the air bleeding procedure. If this is not done, air is not bled completely from ABS unit, so that ABS unit will be broken. (Be sure to install the ABS fuse (60 A) in speci- fied position when the air bleeding procedure is complet- ed.)

2. Fill the brake fluid reservoir (1) up to the “MAX” lev- el with clean brake fluid.

It may be necessary to replenish the brake fluid reservoir several times during the bleeding proce- dure to maintain the required level of brake fluid.

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Notice:
Pour the brake fluid carefully so as not to produce air
bubbles.
3. Remove the right hand rear wheel cylinder (left hand rear wheel cylinder if ABS is equipped) bleed- er screw rubber cap and wipe it clean.
4. Connect one end of a vinyl tube (2) to the bleeder screw.
5. Insert the other end of the vinyl tube into a trans- parent container approximately 1/3 full of brake flu- id.
6. Depress the brake pedal (3) slowly 3 times and hold it depressed.





7. Loosen the bleeder screw (4) approximately 1/2 of a turn.

This will release the brake fluid with air bubbles into the transparent container (5).




8. When the brake fluid being released into the trans- parent container is completely free of air bubbles, retighten the bleeder screw (4).

9. Slowly release the brake pedal.

10. Replace the bleeder screw rubber cap.

Notice:

In order to bleed the air completely from the brake line, repeat the above procedures.

Bleeding of the brake fluid circuit should be performed for front wheel 10 times or more, for rear wheel 15 times or more.

11. Repeat Steps 3 through 10 for each bleeder screws as mentioned before.

12. After the air bleeding procedure is finished in all wheels, depress the brake pedal, and verify wheth-

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er there is no abnormality in operation of the brake system.
13. After the air bleeding procedure for individual wheel is completed, inspect the fluid level of the reservoir tank. If it is insufficient, replenish brake
fluid. Do not overfill above “MAX” level.
14. Stop the engine.

ISUZU TRUCK ENGINE (4JJ1 model) Disassembly of the Assembly

This article introduces ISUZU TRUCK ENGINE (4JJ1 model) Disassembly of the assembly

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Precautions when installing or removing the engine Always apply chock blocks to the vehicle wheels.
Select an engine hoist that is able to withstand the weight of the engine.
Do not get under the engine while it is hoisted.
Never put your hands where they can get easily caught.


1. Disconnect the battery cable negative terminal.


2. Drain the engine coolant.


3. Remove the starter. Refer to "Starter Motor"in Section 1E, Engine Electrical.


4. Remove the front exhaust pipe and exhaust brake.
Refer to "Exhaust Pipe"and "Exhaust Brake"in Section 1G, Engine Exhaust.

5. Remove the transmission. Refer to "Smoother Transmission Assembly"in Section 5B, Automatic Transmission (Smoother) for details on the Smoother vehicles.
Refer to "Transmission Assembly"in Section 5C, Manual Transmission, for details on M/T vehicles.


6. Remove the air intake pipe and hose. Remove the hose on the intercooler side.
Remove the pipe from the turbocharger with the hose attached.



7. Remove the air duct and PCV hose.


8. Disconnect the boost sensor connector (1) and harness clip.

9. Disconnect the ECM connector and clip.

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10. Remove the air intake duct and hose.Remove the duct on the intercooler side.
Remove the duct from the intake throttle valve with the hose attached.



11. Remove the radiator upper hose.

12. Remove the A/C compressor. Remove the A/C compressor drive belt.
Remove the compressor from the A/C compressor bracket. Fasten to any uitableposition with a wire along with the hoses.

13. Remove the engine ground cable from the frame.

14. Remove the vacuum hose (1) from the vacuum pump (2).





15. Remove the radiator lower hose at the engine side.

16. Remove the fan guide. Refer to "Water Pump" in Section 1C Engine Cooling.


17. Remove the cooling fan assembly.


18. Remove the power steering pump. Remove the power steering pump at the engine side with the hose attached. Fasten the power steering pump with hose attached to any suitable position with a wire.


19. Disconnect the heater hose (2) from the heater pipe (1).

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20. Install the engine hanger. Remove the EGR valve harness clip (1).Install the engine hanger to the rear left side of the engine.
Special Tool Engine hanger: 5-8840-2861-0






21. Remove the fuel hose. Drain the fuel from the fuel filter. Remove the hose at the fuel filter side.









22. Remove the mounting bolts on the chassis frame side of the engine mount.
Before removing the engine mount, use the hoist to suspend the engine.
Legend




1. Leaf rigid suspension


2. Wishbone suspension


23. Remove the engine assembly.


Slowly operate the hoist to raise the engine to the top surface of the chassis frame.


Turn the engine 90° and move it from the chassis frame top surface to remove the engine assembly.



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Isuzu truck Brake Lining Clearance Adjustment (2L and D2L)

s article describes how ISUZU truck Brake Lining Clearance Adjustment (2L and D2L)

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Without auto-adjuster type

1. Chock the wheels not being adjusted.

2. Jack up the axle until the wheels can be turned freely.

3. Manually shake the wheel to check for excessive play.

4. Remove the grommet fitted to one of the brake drum cover adjuster holes.

5. Insert a screwdriver into the adjuster hole.

Manually rotate the wheel while turning the adjust- er (A) in the direction of the arrow (1) until resis- tance is felt at the wheel.

6. Back off the adjuster (A) in the direction of the ar- row (2) the specified number of notches.










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7. Install the grommet to the adjuster hole.

8. Repeat Steps 4 through 7 on the other wheels. 9. Lower the vehicle to the ground.

With auto-adjuster type

1. Measure the internal diameter of the brake drum.

• Take measurement of the distance at (A), (B) and (C) points.








2. Measure the external diameter of the brake shoe.

• Take measurement of the distance at (A), (B) and (C) points.





3. Turn the adjuster gear so that the difference be- tween the internal diameter of the brake drum and the external diameter of the brake shoe becomes 0.6 mm (0.024 in).

4. Step on the brake hard while turning the brake drum in the forward direction, or while driving for- ward.

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