Functional Test And Controls - Grizzly G0876 Owner's Manual

3.6

Functional test and controls

Rotation coolant pump
Check the direction of rotation of the CNC machine. There must be a right-handed rotating

field. If the direction of rotation is wrong, exchange two of the three phase conductors. At
this, the correct direction of rotation only refers to the drive of the cooling lubricant pumps.
INFORMATION
The rotational direction of the coolant pump can not be checked in the built in state. If no cool-
ant flows the rotational direction of the coolant pump may be wrong.
Proceeding to set the direction of rotation:
"Turning on the CNC- machine" on page 55
 
Close the sliding door and turn on the coolant supply.
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Check if cooling agent flows.
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Img.3-6: Coolant supply
WARNING!
Never change the dosing of the cooling lubricant supply when a program is running.
 If no coolant is flowing and thus the rotational direction of the coolant pump may be wrong,
- first check the coolant level in the coolant tank,
- and then replace two of three phases (e.g. L1 and L2) in the control cabinet on the circuit
breaker of the engine of coolant pump against each other.
WARNING!
Swapping the phases must be performed by a qualified electrician!
Check all oil levels and filling levels of lubricants in the reservoirs.

Perform a safety test.

3.6.1 Warming up the machine
ATTENTION!
If the CNC machine and in particular the milling spindle is immediately operated at
maximum load when it is cold it may result in damages.
If the machine is cold, e.g. directly after having transported the machine, it should be
warmed up at a spindle speed of only 500 1/min for the first 30 minutes.
Model G0876 (Mfd. Since 3/19)
Coolant supply
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