TM 9-4910-663-12
b. Installation Site. Insure that the site for the test stand is
dry, free from moisture drips, and not exposed to dirt. The selected
site should be in a cool, ventilated location that is not subject to
heat and is free from hazardous processes. Outline dimensions of the
test stand are shown in figure 4-1.
Installation Procedure.
c.
(1) Using a fork-lift completely through the locations provided
material between the machine and floor and hold down bolts are recom-
mended.
(2) Using flexible grounding straps, ground the base assembly
of the test stand to a substantial ground.
(3) Lubricate the gearcase of the varidrive. (Refer to fig
CAUTION
The gearcase is emptied before shipment and must
be filled before the test stand is placed in
service.
(4) The test stand is shipped connected for 230 volt, 3 phase,
60 Hz operation. For conversion for 460 volt operation, rearrange
links as shown in figure 4-2.
Make certain that circuit breaker switch CB1 in
the high voltage (fig 2-5) compartment is set to
the OFF position before touching any internal
electrical connections.
(5) Insert the proper heater elements (fig 4-2) in the starter.
On part number 7458-2, use heater element CR 123 F 91.4B for 230 volt
operation, and use heater element CR 123 F48.7B for 460 volt opera-
tion. On part number 7458-4, use heater element AH42430 for 230 volt
operation, and use heater element AH42232 for 460 volt operation.
Table 4-1.
Power Requirements Chart
Condition
Speed
KVA at 230/460 volts
Starting
166.0
Locked rotor
1000 RPM
35 HP (intermittent)
37.1
39.3
9000 RPM
24.9
22 HP (continuous)
1000 RPM
9000 RPM
26.4
Change 1
4-2
