Using a fork lift completely through the locations provided (fig 2-2), set the test stand into position.
Vibration dampening material between the machine and floor and hold down bolts are recommended.
Using flexible grounding straps, ground the base assembly of the test stand to a substantial electrical
Attach suitable outlet pipes to the air exhaust and air intake and to the battery vent located on the top left
side of test stand. Use 6-inch round, smooth ducting and elbows. The air exhaust will accept a 6-inch external diameter
pipe, and the air inlet will accept a 6-inch internal diameter pipe. Keep all external ducting to a minimum length.
If the air exhaust and air intake pipes are not attached properly, the airflow interlock switch will
prevent test stand operation.
The test stand is shipped connected for 230 volt, 3 phase, 60 Hz operation. To convert the test stand for
operation from a 460 volt source, rearrange the links as shown in figure 2-3.
Make certain that the main circuit breaker switch, located in the high voltage compartment, is set to
the off position before touching any internal electrical connections.
Install the proper heater elements in the starter. On part number 7458-2, use heater element CR 123 F
91.4B for 230-volt operation, and use heater element CR123 F48.7B for 460 volt operation. On part number 7458-4, use
heater elements part number 42430, FSCM 04009, NSN 5999-00-850-3707, for 230 volt operation, and use heater
element part number 42232, FSCM 04009, NSN 5925-00-374-2528, for 460 volt operation.
On part number 7458-2, route the input power cable through the power service entrance on the left side of
the test stand. On part number 7458-4, an input power conduit connector is provided at the lower rear section of the test
Observe all high voltage precautions when making power connections. Make certain that the
external power source is turned off.
2-4 Change 1