33
LUBRICATE PRESSURE REGULATOR O-RINGS:
To maintain consistent adequate pressure delivery to the cleaning tool, the o-rings on the stem of the MX3-
500RP pressure unloader/regulator must be lubricated regularly.
1.
Remove the black knob from the regulator.
2.
Unscrew the brass knob assembly from the piston retainer.
3.
Remove the spring plate and spring from the piston retainer.
4.
Unscrew the piston retainer from the regulator body.
5.
Hold the hex head of the spindle with a wrench while using a screw driver to turn the piston screw and
separate the spindle head & piston screw so they can be removed from the stem retainer.
6.
Use a synthetic grease with Teflon such as Ultra-Slick or Super-Lube to lubricate the o-rings on the piston
and spindle assembly.
7.
Re-install the piston and spindle assembly into the retainer and tighten.
8.
Apply thread sealant to the threads of the stem retainer and screw the retainer back into the regulator
body and tighten.
9.
Replace spring and spring plate back into brass knob assembly and re-install the brass knob.
10.
Push black knob back onto the brass knob.
PISTON RETAINER
BRASS KNOB
ASSEMBLY
BLACK PLASTIC KNOB
PT017KNOB
SPRING
SPRING
PLATE
BODY
SPINDLE
PISTON
PISTON
RETAINER
LUBRICATE PISTON O-RING
& WASHER
LUBRICATE SPINDLE
O-RING & WASHER
RETAINER, PISTON &
SPINDLE ASSEMBLY
PISTON
Summary of Contents for MX3-500RP
Page 1: ...1 LMANN14 Revised 06 04 2014 Nautilus MX3 500RP Operating Manual...
Page 38: ...38 OPTIONAL AUTO FILL FLOAT VALVE ASSEMBLY NM5740...
Page 40: ...40 Pump Out Pump PARTS ASSEMBLY...
Page 41: ...41 1 2 3 5 4 4 6 7 8 9 10 11 12 3 8 9 8 9 8 9 39 2...
Page 48: ...48 2 39 1 72 73 73 67 9 30 31 82 83 2 83 82 84 INSIDE SOLUTION TANK BOTTOM VIEW SOLUTION TANK...
Page 50: ...50 92 91 95 94 112 13 14 14A 104 105 1 39 PUMP OUT CONNECTIONS...