MOZELT CoolGen 4 - Generator Drives; Belt Drives; Hydraulic Drives

MOZELT GmbH & Co. KG
Load liing magnet devices
Technical manual: CoolGen 4
Copyright: MOZELT GmbH & Co. KG, D-47269 Duisburg Edition: August 2014 Rev.: 00
Page 8
English
2.3 Generator Drives
Depending on the type of mobile excavator, the power generator is mechanically or hydraulically driven.
Both variants are designed so that the necessary operang speed of the power generator is ensured as soon as the
diesel engine has reached its full speed.
2.3.1 Belt Drives
To ensure that the belt runs straight both axes must be ush with each other. The sha axes shall be parallel with the
axis of the generator.
It is recommended to use a Laser alignment device for aligning the belt pulleys.
For adjustment of the pretension, we recommend the use of belt measuring devices. During and aer installaon, the
belt is to be revolved several mes. This causes uniform seling of the pulley.
The rst check of the run-in belt pulley is carried out aer 0.5 to 4 hours.
The belt tension should be checked every 6 to 12 months and, if necessary, corrected.
2.3.2 Hydraulic Drives
Hydraulic generator drives are always to be supplied with a priority ow of hydraulic oil.
This means the supply ow should not be adversely aected by motor uctuaons, liing, travelling or other
movements. Depending on the manufacturer of the construcon machine, this is implemented in various technical
designs. Please ask the respecve manufacturer for informaon on this maer or contact us for the alternave
soluon of the „HydraBrain“ system.
With some hydraulic drives, opmum operaon is also possible at low speed of the diesel engine. For this, please
check the manual of the mobile excavator manufacturer.
Never reach into the running belt
drive!
WARNING
Never operate the power generator
without belt guard!
WARNING
Fig.: 2 | Belt drive
Fig.: 3 | Hydraulic drive with „BELL CLUTCH“ coupling
For hydraulic motor drives, speed peaks up to 4000 rpm are allowed at the moment of shutdown
of the magnet, if they do not last longer than 0.5 seconds. At speeds above 3400 rpm and below
2700 rpm, magnet operaon is not, or only to a limited extent, possible.
CAUTION
CAUTION
It is parcularly important that the speed
remains constant and does not show any
uctuaons!
CAUTION
Speeds above 3400 rpm can destroy the
power generator!
CAUTION
The speed should be measured not only
during no-load operaon, but also during
the starng and shutdown phase!