Contact rod assembly adjustments
With the contacts open, the contact rod should be at or
within 1/32 inch of the overtravel stop. With the contacts
closed, the length of the compressed compression spring
should not exceed 19/32 inch. Adjust contact rod and stop
bracket to achieve proper measurements, see Figure 26:
Overtravel stop adjustment
1. Remove leads from spacer assembly.
2. Loosen upper interrupter clamp to free moving
contact rod.
3. Loosen jam nut that secures contact rod assembly.
Rotate rod assembly to obtain proper measurement.
Secure jam nut.
4. Close recloser.
otee:
N
Moving contact rod must bottom in upper interrupter
clamp assembly.
5. Tighten upper clamp hardware to 75 lbs-in (8.5 Nm).
6. Push contact stop bracket up as high as it will go.
Hold upper interrupter clamp hardware, to prevent
movement, while locknuts are tightened to secure
contact stop bracket.
7. Secure leads to spacer assembly.
Compression spring adjustmente:
If the length of the
compressed compression spring exceeds 19/32 inch, the
contact rod assembly will have to be adjusted to provide
more spring compression, and/or the contact stop bracket
will have to be adjusted to obtain the proper dimension.
The adjustment may require a trial and error compromise
between the overtravel adjustment and compression spring
adjustment. It may be necessary to adjust both the contact
rod and overtravel stop bracket.
1. Remove leads from spacer assembly.
2. Loosen upper interrupter clamp to free moving
contact rod.
3. Loosen jam nut that secures contact rod assembly.
Rotate rod assembly to obtain proper spring
compression, manually close recloser to check
compression, open recloser to adjust rod assembly.
When proper compression is obtained secure jam nut.
4. Close recloser.
otee:
N
Moving contact rod must bottom in upper interrupter
clamp assembly.
Leads
Moving contact
rod assembly
Upper interrupter
clamp
Jam nut (at top of
moving contact rod
assembly)
With contacts closed
spring dimension should
not exceed 19/32 inch
Stop block
GAP 1/32 INCH,
OR LESS
CONTACT
STOP
BRACKET
Figure 26 . Overtravel stop adjustment
5. Tighten upper clamp hardware to 75 lbs-in (8.5 Nm).
6. Push contact stop bracket up as high as it will go.
Hold upper interrupter clamp hardware, to prevent
movement, while locknuts are tightened to secure
contact stop bracket. Recheck overtravel adjustment.
7. Secure leads to spacer assembly.
Types V4L and V4E single-phase maintenance instructions
18
MAINTENANCE INSTRUCTIONS
MN280055EN May 2017
