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INSTALLATION (continued)
1 --- 3
Functional Test
The Functional Test consists of three checks: manual
operation, voltage checks, and electrical operation.
NOTICE
Do these checks in the order presented to avoid
damaging the automatic transfer switch.
Read all instructions on the Wiring Diagram and labels
affixed to the automatic transfer switch. Note the
control features that are provided and review their
operation before proceeding.
1 – Manual Operation Test
A detachab l e manual oper ator handl e is prov ided on the
Trans fer Switc h for maintenanc e purposes only
.Manual
operation of the transfer switch should be checked
before it is energized (operated electrically).
Do not manually operate the transfer switch until
both power sources are disconnected: open
both circuit breakers.
1. Insert the maintenance handle into the hole in the
shaft, left side of the operator.
2. Move the maintenanc e handle as show n to manu ally
operate the transfer switch. The switch should operate
smoothl y without any binding. I f it d oes not, chec k for
shipping dam age or construction debris.
3. Re tur n the transfer switch to the N (normal) position.
4. Remove the maintenance handle and s tore it on the
trans fer sw itch in the pl ac e pro vid ed .
NOTICE
Verify that the maintenance handl e has been
removed before proceeding!
Now continue to 2–VoltageCheckson next page.
maintenance
handle
shaft
hole
Figure 1-4. Removable maintenance handle on
260 an d 400 ampere tran sfer switches.