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Push buttons look similar but vary in length. Remove and re-
install one push button at a time.
Lubricating Control Shafts
1. Loosen the knob set screw using a hex key. Some set screws are
covered by a vinyl sleeve. The vinyl sleeve must be removed prior
to loosening the set screw.
2. Remove the control shaft from the inside of the housing.
3. Clean and lightly lubricate the shaft, including the large outer end
of the shaft.
4. If there is a spring associated with the control, make sure it is in its
proper position.
Control
gland
Control
shaft
Knob
set
screw
Housing
Control
flat
5. Re-install the shaft from the inside of the housing. Rotate the shaft
gently for smooth installation into the gland. Push the control shaft
all of the way through until the flat of the shaft is visible on the
outside of the housing.
6. Align the knob set screw with the control flat.
7. Tighten the set screw firmly against the flat of the control shaft
using a hex key.
