Specifications

Southwestern Industries, Inc.

ProtoTRAK SMX K2, K3, K4 & Retrofit Safety, Installation, Maintenance, Service & Parts List Manual

• A good fuse reads 0 (zero) or close to it.

• A bad fuse reads Open or Infinity.

4.8.3 Cable Breakout Box Connections

This module is located on the back side of the machine. It consists of 3 motor connections, 3 limit

switch connections, 3 encoder connections and an E-stop connection.

Machines with an auxiliary function option have 2 more outlets. A 110 V outlet for a coolant

pump or air solenoid and an indexer outlet.

The coolant pump signal and indexer signal comes down from umbilical #2.

4.8.4 Cable Connections

The TRAK knee mill machines use 10+ cables to communicate between systems. It is often

the case that what appears to be the failure of an electrical component is actually attributable

to a poor connection.

Indications:

• Control problems, chronic or intermittent.

• Motor problems

• Measurement problems.

Explanation:

1. Turn off and

unplug

the system from the wall.

CAUTION!

Do not plug and unplug connectors with the system power on. This may cause damage to the

connector board and harm to the technician.

2. Visually inspect the connections for excessive debris, moisture, or obvious damage.

3. Carefully clean any chips away from the connectors.

4. One-by-one, take out each connector and then plug them back in. Do the same at the

computer/display.

5. Make sure to tighten up the screws on each of the connectors.