Wachs POW-R-DRIVE II, Manual

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POW-R-DRIVE II
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OPERATING PROCEDURE:
Hydraulic Pow-R-Drive II
1. Rotate torque control knob counterclock-
wise to the lowest torque setting (Figure 3).
2. Engage the "power on" handle in either forward
or reverse direction. If valve does not turn,
release handle and engage in the opposite
direction (Figure 3).
3. Continue this process, increasing the torque
value 1/2 turn on the torque control until valve
stem breaks free. This method ensures that
only enough torque is supplied to turn the
valve. Once the valve has started turning,
reduce the torque setting to the lowest setting
which will keep the machine operating. This
procedure assures you that the machine will
stop operating as soon as any type of ob-
struction is encountered or valve begins to
seat.
DURING OPERATION:
When operating a valve, a build up of torque can
be felt by the operator. When this occurs, it is a
sign of either build up of material in the valve gate
slides or that the end of travel is approaching. The
operator should change sides and reverse the
valve direction for a few turns, doing this each
time resistance is felt. This method of exercising
cleans out tuberculin and other contaminant build
up. The counter will keep track of how many turns
you have put on the valve.
SECTION IV
SET-UP AND OPERATION
CAUTION: Before beginning turning sequence,
know which direction to turn the valve to avoid
breaking the valve stem.
FIGURE 3
NOTE: When lever is depressed, torque indi-
cator will read the torque value being applied
to valve stem.
NOTE: More torque will be required to seat,
unseat or clear tuberculin from the valve.