Bosch 5302 Technical Information download pdf (Page 40)

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3LD 450 3000 N 7,5 140-146 272-283

3LD 450 3600

NB 7

143-149 285-299

3LD 510 3000 N 9 117-122 272-283

4LD 640 3000 N 10,5 96-100 284-295

4LD 705 3000 N 10,8 96-100 276-287

4LD 705 2600 N 10 108-113 263-277

4LD 820 2600 N 12,1 87-92 258-273

Workshop Manual__3 - 4 LD_cod. ED0053025560_4° ed_ rev. 03

Adjustment

* The specic consumption values indicated are valid after abt.

100 working hours.

Adjustment of injection pump delivery with braked engine

1) Bring the engine to its idling point .

2) Move the delivery limiting device 3 towards the left, see

picture 88

3)Operate the engine until it reaches the power and rpm

required by the manufacturer of the equipment.

4) Make sure that the consumption is in compliance with

the values specied in the table of the adjustments (see

information below).

If the consumption is in compliance with the xed values, it is

essential to change the balance conditions measured on the

brake, operating either on the load and on the regulator.

When the engine is steady, carry out the consumption check

again.

5) Move the limiting device 3 towards the right, as per picture

88, until the engine rpm number descreases. Lock the limiting

device by means of the two screws.

6) Completely release the brake and check the rpm at which the

engine settles. The speed governor performances shall be in

compliance with the class required by the manufacturer of the

equipment.

7) Stop the engine.

8) When the engine is cold, check the valve clearance again.

Required adjustments (the most demanded)

Limiting device for injection pump delivery and torque

gearing device

It is housed in the pump control lever A and it is constituted of

a spring on cam B, limiting the stroke of the same lever A.

At the torque rate, the spring exure, subject to the accelerator

control action, allows a further stroke of lever A, thus an

increased delivery of the injection pump.

Time secs

for 100 cc.

r/kW.h

power

Engine

Specic fuel

consumption *

Rpm

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 46 47 48

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Bosch 5302 Technical Information Page 40

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