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Installation & Adjustment Procedures
6. Switch Adjustments (Tuning)
6.1. The operating mechanism is intended to fully open and fully close the disconnect switch
by rotating the vertical operating pipe 180
o
± using an operator (manual or electrical).
The interphase pipe controls the individual operation of each switch pole, using a
push/pull control. The reach rod translates the motion of the vertical operating pipe to
the interphase linkage. The adjustable arm (
controls the total amount of
switch operation available.
HINT:
For easiest adjustment start with the reach rod connected to the drive phase and
the interphase pipe disconnected from the other two phases. Once the drive phase is
properly adjusted, connect the interphase pipe and continue tuning the other two
phases. Care should be taken to ensure that the operating mechanism only exerts
enough force to toggle the blade tip perpendicular to the jaw contacts. Excess
downward force on the blade could result in damage to the switch that will render it
inoperable.
6.2. Switch Operating Devices:
6.2.1. Worm gear operator (HOGO – High Output Geared Operator)
6.2.1.1. The operator handle is factory set to rotate either clockwise or counter-
clockwise to open the switch.
6.2.1.2. When the switch is properly adjusted the operator handle should hang
vertically and free in both the open and closed positions to permit the use of a
customer supplied padlock. Refer to
Figure 16: Type HOGO (High Output Geared Operator) Front View
Be aware that there is an adjustable stop on the operator.
Do not over operate
as damage will occur to the operator.
