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LUBRICATE PRESSURE REGULATOR O-RINGS:
To maintain consistent adequate pressure delivery to the cleaning tool, the o-rings on the stem of the M1200
pressure regulator must be lubricated regularly.
1. Remove nut from the end of the regulator stem.
2. Remove the black knob from the regulator stem.
3. Remove the spring plate, spring, and spring washer from the
regulator stem.
4. Remove the jam nut and washer from the shoulder of the
regulator stem retainer. (The set point nuts do not need to be
removed.)
5. Release the latch on the front of the machine and tilt the tanks off of
the base assembly. Support the tanks with a chair, bucket, or box
while working inside the base.
6. Disconnect the vacuum hose from the vacuum manifold and move it
out of the way to gain access to the regulator.
7. Pull the regulator assembly from the base wall opening (back into the
base) to access the regulator. A hose may have to be disconnected to
move the regulator into a better working position.
8. Hold the body of the regulator with a wrench or vice-grip pliers. Use
another wrench to loosen and remove the stem retainer, then
remove the stem assembly from the body of the regulator.
9. Use a synthetic grease with Teflon such as Ultra-Slick or Super-Lube to lubricate the o-rings on the
regulator stem.
Nut
Spring Plate Spring
Spring
Washer
LATCH
Stem
Set Point Nuts
Lubricate Stem O-rings with synthetic
grease
Loosen & remove Stem
Retainer from regulator body
Black Knob
Washer
Jam Nut