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Diagram of cooling system G220.3 G320.2 G4xx/G5xx
1
External cooling unit, or customer-side cooling
2
Heat exchanger (hydraulic unit)
3
Hydraulic unit
4
Heat exchanger (spindles)
5
Main spindle
6
Counter spindle
7
Tool carrier 1 (omitted on G400.2)
8
Internal cooling unit
9
Control cabinet
a
Inlet flow (water/water-glycol mixture)
b
Return flow (water/water-glycol mixture)
c
Hydraulic fluid HLPD32 (VG32)
d
FSK35 or Antifrogen N FSK34 (read note)
The following must be observed when servicing the coolant. A
water-glycol mixture is filled in at positions 1 and 8. Make sure that a
concentration of FSK35 (35% glycol) is used in machines 1-4. From
Machine 5, a concentration of Antifrogen N (34% glycol).
For all work in connection with operating materials, the information in
the data sheets of the respective manufacturers and the information
in the document Notes on Operating Materials must be observed.
Requirement
Replenish only coolant of the same manufacturer having the same
specification. Mixing different coolants may lead to corrosion of the
cooling system, incompatibility and degradation of the coolant. Be
sure to observe the specified concentration of glycol in the
respective machine.
Maintenance Summary - Care activities
32
Maintenance Instructions
G300.2 G320.2 G400.2 G420 G500.2 G520
DIE147EN - 17.08.2022