الأحد، 7 يوليو، 2013

Basic components in big baler part 13 14. Hydraulic components

A.Pump + reservoir
Reservoir : 4L
                  Ambra Hydrosystem 46HV
  Sight glass to check level

air filter

Pump :  driven from stuffer gearbox

Oil reservoir: capacity 4L (1 us gallon)
        total circuit capacity 10.8 L (2.8 US gallon)
        AMBRA HYDROSYSTEM 46HV (or 46 BIO-V or  46 BIO-S)
        Sight glass to check level
Air filter: change at every oil change, after 10000 bales or annualy

B. Filter + cooler
Filter 
blocked filter warning indicator

Serpentine cools down the oil

C. Density valve
PWM (pulse width modulation)
In automatic mode operated by the BCM and monitor
In the event of electronic failure, the valve can be adjusted manually using an Allen key.
This directly adjusts the pressure in the density system allowing the user to continue working. 
This (proportional)  valve is used to control the density:
3 possibilities:
Automatic bale density control: the plunger load sensor measures the load applied to the bale by the plunger and a processor adjusts the pressure in the hydraulic system.(screw open ; automatic mode selected)
Manual bale density control: operator sets the hydraulic pressure in the density system from the monitor.(screw open ; manual mode selected)
Manual override bale density control: Monitor not used. The adjustment screw on the density valve has to be adjusted manually.(max 160 bar)
Pressure gauge :
Indicates pressure in density cylinders.
Bar and psi reading
can be used as pressure indicator in case electronic system fails















C. Density valve + pressure gauge
A gauge at the front of the baler displays actual hydraulic pressure in the density system.
A useful visual reference to help the operator during work and also allow work to continue in case of electric failure.
Silage  40 to   70   Hay  50 to   80  Straw  60 to 100    
D. Density cylinder










2 density cylinders compress the bale
Density adjustable through monitor and the BCM adjusts the hydraulic pressure to maintain the preset level.
Large diameter density cylinders
Lowered operating pressure, but improved and strengthened design of density door balancers
Changed geometry of the bale chamber cross section for ideal force distribution giving less unwanted bale density fluctuations
Improved stability of density control software.
E. Bale chute
Standard the machine comes with a roller bale chute
Raised hydraulically from the lever at the rear RHS of the baler.
Second last roller is now also with bearings to prevent damage in the transport position
All units will standard come with roller bale chute
Second last roller with roller bearings (last roller was already with bearings)
Reinforced front frame of the roller baler chute

F. Control levers


Rear lever: bale chute open / close
Middle lever : full balechamber eject
Front lever: only last bale eject
Pressure relief valve 165 bar
Non return valve for operating auto steer.

F. Lockout autosteer, knive drawer

Open : Knifedrawer open/close
Closed : Knife in/out
Open : Floating rear axle
Closed : Fixed rear axle
(only steered tandem axle
\