Rev. 2/21/2017
HDC-905, MANUAL
Copyright 2017 Vestil Manufacturing Corp.
Page 8 of 19
FIG. 5: Front view
FIG. 6: Rear view
FIG. 7: Left side view FIG. 8: Right side view
Pressure
switch #2
(port PS2)
Pressure
switch #1
(port PS1)
Gauge port
(GA); install
3,000psi
pressure gauge
Gauge port (UL
GA); install
3,000psi pressure
gauge
Set screw on
knurled knob of
pressure switch 1
[NOTE: The knurled
knob of PS2 also
has a set screw.]
Filter
Directional
valve
Directional
valve
Lower pressure
switch (PS1)
Upper pressure
switch (PS2)
Filter
Manifold, Pressure Switches, and Valves
(Reference Diagrams for Adjustment Procedure on Following Page)
The manifold assembly shown in Figures 1 – 4 below corresponds to item no. 21 on p. 6; item 1 on p. 7.
Adjustment hex
flats of relief valve
Sequence
valve
Relief valve
