Van Air Systems PD-5 Pressure Differential Gauge Kits - Manual (Page 2)

FIGURE 2 INSTALLATION DETAILS
Remove the blanking plate from the filter head by removing the (2) screws. Note the
orientation of the flow direction arrows so the plate may be reinstalled correctly.
Turn blanking plate upside down. Remove the (2) small o-rings and discard.
Drill a 3/32" hole in the center of each o-ring recess. NOTE: The PD-5 will not func-
tion if these holes are not drilled.
Remove PD-5 from its packaging.
Install (2) new blanking plate o-rings, included in the installation kit, into the recesses
on the bottom side of PD-5. NOTE: The blanking plate o-rings are slightly smaller
than the indicator o-rings.
Remove dust cap from top of PD-5 so that mounting screws are exposed.
Install the (2) indicator o-rings into the recesses on the bottom side of the indicator.
Assemble and mount PD-5 and blanking plate to filter head as shown in Figure 2.
Tighten indicator screws firmly. Do not overtighten as damage may occur to the
PD-5 and/or filter head.
Reinstall dust cover on indicator.
INSTALLATION (Reference Figure 2)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
PD-5
MOUNTING SCREWS
DUST COVER
INDICATOR
O-RING
BLANKING
PLATE
INLET/OUTLET
CONNECTION
FILTER HEAD
BLANKING
PLATE
O-RINGS
WASHER