Dynapac CA 251 Vibratory Roller Operation Manual - PDF DOWNLOAD

Page 11

INSTRUMENTS AND CONTROLS, FUNCTIONAL DESCRIPTION Items Designation in fig.4

Symbol

Function

16

Engine temperature gauge

Indicates engine working temperature. Normal temperature range 82°C–93°C (180°C–199°C). Stop the engine if the gauge indicates more than 103°C (217°F), remedy the cause. See engine manual.

17

Main and dipped beam. control lamp, (optional)

Turn right to switch on the main beam.

18

Warning lamp – air cleaner

If the warning lamp lights at full engine revs it is an indication that the air cleaner needs cleaning or replacement.

19

Tachometer/hourmeter

Indicates current engine speed in revs per minute. Multiply the meter value by 100. The running time in hours is indicated digitally.

20

Compaction meter, (optional)

See separate instructions.

21

Speedometer (optional)

The outer scale indicates km/h, the inner mph.

22

Vibration/Frequency meter (optional equipment)

The inner scale indicates the current motor speed. The outer scale indicates the vibration frequency.

23

Vibration ON/OFF

Press to switch vibration on. Press again to switch vibration off. Applies when (27) is in the MAN mode.

24

Forward/reverse lever

The lever must be in neutral to enable the engine to start; the engine will not start if the forward/reverse lever is in any other position. The forward/reverse lever controls the driving direction and speed of the roller Move the lever forward to drive the roller forward, etc. Speed of the roller is proportional to movement of the lever from the neutral position. The further from neutral the higher the speed.

25

Speed control (optional equipment)

Limits movement of the F/R lever and thus the speed. The speed control can be bypassed.

26

Speed selector

Transportation speed (High) Working speed (Low)

27

Vibration setting (optional equipment)

CA 251 O251-1EN1

MAN O AUT

In the MAN mode the vibration is switched ON/OFF with (23). Vibration is OFF in the O mode. The AUT mode gives automatic switching of vibration ON/OFF while driving forward or reverse. 9


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