Eaton DST-2-15-VR+ Instruction Book page 32

+
DST-2-VR
+
VR-Series Replacement Circuit Breaker
Figurt 6.3. Status Indicators ("A" shows tht spring indication
and "B" shows tht contact status indication.)
CLOSING
SPRING
Manual
Charge
Socket
+
VR-Strits
Vacuum
Circuit Breaker
Push Push
To To
Close Open
Made in the U.S.A.
Sttp 1 - On the front cover, identify the status indicators. Confirm
the closing spring status indicates 'Discharged' and the main
contact indicator shows 'Open' (Figure 6.3).
Sttp 2 - Remove the circuit breaker front cover. Be sure to save the
original fasteners for reassembly.
Sttp 3 - Charge the circuit breaker, close the circuit breaker, then
open the circuit breaker. Alternately depress the Open and Close
clappers a few times to ensure the circuit breaker is completely
discharged.
Sttp 4 - Cut a piece of one inch wide drafting / masking tape
approximately 8 to 10 inches long.
Sttp 5 - Clean the far left cam with a mild solvent such as alcohol.
Place the tape around the cam starting from the bottom up. Make
certain that the tape adheres well to the cam surface. (Figure 6.4).
Figurt 6.4. Wrapping Tapt Around Cam
Sttp 6 - Mount the transparent CloSure™ Test Tool (Figure 6.5.b)
with two bolts and washers. Refer to Figure 6.5.a and Table 6.1
for approximate mounting holes. Hand tighten the bolts.
Sttp 7 - Using a red Sanford
®
(or equivalent), place the marker tip in the proper hole ("C")
located over the cam and make a heavy mark on the tape by
moving the marker as described in Figures 6.7 and 6.11. Remove
the marker from the hole.
Sttp 8 - Charge the closing springs with the maintenance tool
(Charging handle). Continue charging the closing springs until a
"click" is heard and the status indicator shows 'Charged' (Figure
6.6).
32 Instruction Book
Main
Contact
Open
Status
Closing
Spring
Discharged
Status
Breaker
Operations
Counter
94C9523H71
Sharpie fine point permanent marker
®
IB182942EN May 2019 www.eaton.com
Figurt 6.5.a. Attaching CloSurt™ Ttst Tool
A
B
Figurt 6.5.b. Front Vitw of CloSurt™ Tool Showing Mounting /
Ttsting Holt Locations (6352C49H01)
A-1
A-2
A-3
C-1
A-4
B-1
B-2
Tablt 6.2. CloSurt™ Tool Mounting / Ttsting Locations by
Circuit Brtaktr Typt
APPROXIMATE
CIRCUIT MECHANISM
CHASSIS WIDTH
BREAKER
DESIGNATION (INCH)
VR-Series +
18
Sttp 9 - Place the marker back in the hole. While holding the marker
tip against the tape, close the circuit breaker (Figure 6.8). Remove
the marker from the hole.
Sttp 10 - While closely observing the pole shaft at the left side of
the circuit breaker (Figure 6.9), recharge the closing springs with
the maintenance tool. As the circuit breaker is recharged, there
should be no movement of the pole shaft. If there is movement of
the pole shaft while recharging, this indicates a problem with the
circuit breaker - stop the test and consult the factory.
Sttp 11 - Open the circuit breaker, then close it, then reopen it.
Verify that the mark made in Step 7 is aligned with the pen
opening. If it is not aligned, this indicates a problem with the
circuit breaker - stop the test and consult the factory.
C-2
C-4 C-5
C-3
LOWER LOWER
MOUNTING MOUNTING
HOLE HOLE
A1 B2
C-6
MARKER
PLACEMENT
HOLE
C1