S&C Vista SD - Pad-Mounted Enclosure Access

12 S&C Instruction Sheet 695-510
Operation
Pad-Mounted Style
STEP 1. Remove the padlock from the gear. See Figure 3 on
page 7.
STEP 2. Insert a pentahead socket wrench or tool (a hex-
head socket wrench or tool when catalog number
sufx “-H1” is specied) into the hinged roof latch-
ing mechanism. Rotate the wrench or tool 360º
counterclockwise to unlatch the hinged roof. See
Figure10.
NOTICE
Do not apply any undue force when attempting to
open the hinged roof or a door. The use of undue
force may damage the latching mechanism.
STEP 3. Lift the hinged roof all the way open; the “hold-
open” latching mechanism will engage
automatically. See Figure 11.
WARNING
After lifting the roof open and ensuring the “hold-
open” latching mechanism is engaged, release
pressure on the hinged roof slowly. Failure to
engage the “hold-open” latching mechanism
could result in personal injury.
STEP 4. To gain access to the termination compartment, lift
the latch handle to open the right-side door or the
center door. See Figure 12(a). Open the door far
enough to permit the door-holder mechanism to
engage automatically.
STEP 5. To open the left-side door, lift the nger latch. See
Figure 12(b). Open the door far enough to permit the
door-holder mechanism to engage automatically.
NOTICE
Optional pad-mounted style enclosures fur-
nished on switchgear assemblies with five
or six ways have three doors. The right-side
door and the center door have lift-style latch
handles. The left-hand door has a finger latch.
Figure 10. Unlatching the pentahead bolt latching
mechanism with a pentahead socket wrench—a 360º
counterclockwise turn will unlock the hinged roof.
Figure 11. Lift the hinged roof to engage the “hold-open”
latching mechanism.
(a) (b)
Figure 12. To gain access to the termination compartment, lift
the latch handle to open the right-side door (a), and then lift
the finger latch to open the left-side door (b).