Winco ASCO 300 E Design 260-400 Amp - Manual (Page 5)

INSTALLATION (continued)
1--3
Functional Test
The Functional Test consists of three checks: manual
operation, voltage checks, and electrical operation.
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 detachable manual operator handle is provided on the
Transfer Switch for maintenance 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 maintenance handle as shown to manually
operate the transfer switch. The switch should operate
smoothly without any binding. If it does not, check for
shipping damage or construction debris.
3. Return the transfer switch to the N (normal) position.
4. Remove the maintenance handle and store it on the
transfer switch in the place provided.
Verify that the maintenance handle has
been removed before proceeding!
!
Now continue to 2 – Voltage Checks on next page.
maintenance
handle
shaft
hole
Figure 1-4. Removable maintenance handle on
260 and 400 amp. E–design transfer switches.