sennebogen 830 E - Bringing the Machine to Operating Temperature

Start-up - Switching on machine
4 - 36
830 / 07.2012
Original operating instructions
4.10.5Bringing the machine to operating temperature
Procedure for
warming up the motor
 Allow the motor to run at idle speed for 3 minutes after starting.
Additional warm-up time can be required at temperatures below 0°C
(32°F).
 Then increase the engine speed gradually up to nominal speed (no
load)
 If approx. 20°C (54 °F) water temperature has been achieved, put a
load on the engine by carefully actuating the hydraulic functions and
continue to warm the machine up.
 The machine can be loaded if the temperatures indicated below
have been achieved.
Note
If the fine screen in front of the cooler ices up, ice and snow can be
melted and blown out in the warm-up phase with the aid of the fan
reversal function.
Note
If the hydraulics are still slow to respond after the warm-up period,
operate for a further 15 minutes at reduced speed.
The following temperatures should be displayed before operating the
machine at full speed:
 Hydraulic oil: approx. 40°C (104°F)
 Water: approx. 35°C (95°F).
CAUTION
Not warming up the engine and the machine can result in damage to
the engine, hydraulic pump, hydraulic motor, hydraulic oil cooler and
hydraulic tank. In addition, machine functions and machine behavior
may be negatively impacted, e.g. delayed activation or delayed
deceleration of functions.
CAUTION
This may lead to uncontrolled operation of the machine, which may
cause accidents!
Only a machine at operating temperature is a fully functioning
machine!
Guidelines values for
warm-up period
Ambient temperature Warm-up
period
Max. engine speed
Down to 0°C (32°F) Approx.
15 min.
Nominal speed —
250 rpm
(for nominal speed, see
Chapter 4)
- 20°C (- 4°F) -... 0°C
(32°F)
Approx.
30 min.