Kohler KD 500 Atölye El Kitabı - Sayfa 39

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HUNTING RATE

DIMINISHES

Workshop Manual KD500 _ cod. ED0053029390 - 1° ed_rev. 00

Rpm regulation

Fill the engine with oil and diesel fuel and allow it to warm up for

10 minutes.

With the engine hot, adjust the idling rate (A, fig. 79) to 1,300

rpm and the peak no-load rate (B, fig. 79) to:

- 3,150 rpm for engines set at 3,000 rpm on load

- 3,750 rpm for engines set at 3,600 rpm on load

Braked engine test

Carry out the following operations after having positioned the

engine on the brake:

1. Start the engine and allow it to idle

2. Allow the engine to run in before checking the maximum

power

Running-in table

Time (min)

RATE

DIMINISHES

MORE SLOWLY

Consult the power curves in chapter 5.

There may be hunting problems, slowness or misfiring if the

injection pump is changed. Correct these faults by turning the

pump casing a few degrees in relation to the engine casing,

following the directions indicated in fig. 80.

Fuel limiter.

The fuel limiter has a torque corrector device (fig. 81) that

consists of the following parts:

A) Torque corrector cap

B) Maximum power flow rate adjuster

C) Spring load adjuster

D) Locking nuts

The adjustments can only be made to the exhaust brake. It is

therefore inadvisable to tamper with the corrector adjuster (C fig.

81). The setting of adjuster B (fig. 81) can only be modified if

work has been done on the injection pump or regulator, if the

engine produces a lot of smoke or has insufficient power.

ENGINE TESTING

RPM

2000

3000/3600

Load

30%

50%

70%

100%

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