This procedure tells you how to install an auxiliary coolant filter (AF) system. This #2 bag-type filter system removes contamination and small particles from the coolant before they go through the coolant pump again.

This procedure tells you how to connect the AF to these coolant systems:

• standard coolant pump [1]
• high pressure coolant (HPC)/Through-Spindle Coolant (TSC) 300 pump [2] with a secondary filter
• HPC/TSC 300/1K with an Auto-Clean pump [3]

Machine Compatibility:

All machines excluding tool room mills and lathes.

This document applies to the following service kit:

• KIT PN: 93-1000284, AUXILIARY FILTER KIT

Prerequisites:

Do not apply thread sealant to the hose connections. This makes the hose difficult to remove.

 Note: The illustrations in this procedure show the installed configuration.

If the machine has a standard coolant pump:

• Disconnect the coolant supply hose [1], from the pump outlet [2].
• Connect the lower supply hose [3] to the coolant supply hose [1].
• Connect the upper AF hose [4] to the coolant pump outlet [2].
• Close the machine doors and windows.

 Note: Coolant can splash in the machine.

• Start the coolant pump.
• While the coolant pump is on, open the AF lid.

 Note: This pushes the air out of the AF.

• Close the lid when the AF is full.

If the machine has a HPC/TSC 300 pump with a secondary filter:

• Remove the coolant return loop [1].
• Install the coolant hose adapter [A] to the 3/4" NPT port.
• Connect the upper AF hose [2] to the coolant hose adapter.
• Connect the 12" (30 cm) pump hose [B] to the 1/2" NPT port in the pump stand.
• Attach the lower AF hose [3] to the 12" (30 cm) hose [B].
• Close the machine doors and windows.

 Note: Coolant can splash in the machine.

• Start the coolant pump.
• Remove the AF lid while the coolant pump is on.
• Use the wash gun to fill the AF with the coolant.
  Note: Becareful Coolant can splash at you when using the wash gun.

 Note: This pushes the air out of the AF.

• Install the lid when the AF is full.

If the machine has HPC/TSC 300/1K and an Auto-Clean pump:

• Remove the coolant return loop [1].
• Connect the lower AF hose [3] to the swivel fitting on the outlet pipe.
• Connect the upper AF hose [2] to the stand pipe [4].
• Close the machine doors and windows.

 Note: Coolant can splash in the machine.

• Start the coolant pump.
• Remove the AF lid while the coolant pump is on.
• Use the wash gun to fill the AF with the coolant.
   Note: Becareful Coolant can splash at you when using the wash gun.

 Note: This pushes the air out of the AF.

• Install the lid when the AF is full.