Ammann ARR 1575, Workshop Manual

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241 ARR 1575
557D248
557D249
557D242B
1
2
WORKSHOP MANUAL
11�3�2 Checking the engine speed and
frequency
Adjust the speed at the machine operating temperature�
Place the machine on two large or four small old tyres or ad-
equately soft ground.
Start the engine.
Select vibration.
The machine sets the maximum speed = 2390–2440 rpm.
Use a revolution counter to measure the frequency. The re-
quired value is 41 Hz.
If the speed is not reached, check the engine speed.
If necessary, set the speed on the plug head (1).
Secure the nuts.
Make sure the lock (2) is engaged on the plug head.
Engine speed
rpm
after 5 min. after 60 min.
Engine speed 100% 2415 ± 25 2405 ± 25
Vibration speed, front
low
2250 ± 150 2250 ± 150
Vibration speed, rear
low
2250 ± 150 2250 ± 150
Vibration speed, front
high
2250 ± 150 2250 ± 150
Vibration speed, rear
high
2250 ± 150 2250 ± 150