DH Instruments PPCH, 3401429 Instruction Sheet

PPCH™ Pump Supply Filter Kit

P/N 3401429

Instruction Sheet

Pump Supply Filter Kit for PPCH, P/N
3401429, includes (Pre-assembled):

DESCRIPTION QTY PART NO.

Pump supply filter, 15m, SS,
1/4 in. Swage

Tubing, SS, 1/4 in. O.D.

1 3138000

(102808)

4.5 cm 3232210
(100108-Z)

Introduction

The PPCH Pump Supply Filter P/N 3068879 (103727)
which is used on PPCH units built prior to December
2008 is being replaced with a more conductive filter.
This kit facilitates the replacement of P/N 3068879
(103727) with P/N 3138000 (102808). It includes the
replacement filter and a pre-attached extension tube
to compensate for the difference in filter length.

Note

Once this kit 3401429 has been installed any
future pump supply filter replacements will
require only the filter P/N 3138000 (102808).

Installation Instructions

To replace the inlet filter (liquid), proceed as follows:

Vent the PPCH and disconnect electrical power

and drive air supply.

Close the reservoir FILL/DRAIN valve on the

PPCH rear panel.

Open PPCH chassis to gain access to the

mechanical module (see PPCH Operation and
Maintenance Manual Section 5.9 for instructions).

If the PPCH is a single Q-RPT or utility sensor (no

Lo Q-RPT), the filter can be accessed through the
top of the PPCH chassis.

If the PPCH has a Lo Q-RPT, the PPCH must be
placed on its side so that the bottom of the
mechanical module is facing you.

Using 9/16 in. and 3/4 in. wrenches, loosen both

sides of the existing pump filter 3068879 (103727)
and short tube union that connects it to the pump
inlet fitting. Note direction of existing filter! See

Figure 1.
Remove old filter 3068879 (103727) and tube union.
Using 9/16 in. and 1 in. wrenches, install the new

Filter Kit P/N 3401429. See Figure 2.
Tighten fittings.

If the PPCH has a Lo Q-RPT, set the system back

to a normal position. Reconnect electrical power

and drive air. Power up the PPCH.
Perform pump prime procedure (see PPCH

Operation and Maintenance Manual Section

5.10.1). Check filter connections for leaks.
Open reservoir FILL/DRAIN valve.
Close PPCH chassis (see PPCH Operation and

Maintenance Manual Section 5.9).

Figure 1: Previous Pump Supply Filter P/N 3068879 (103727)

Looking at the PPCH from the rear, place the
PPCH on its RIGHT side to avoid draining fluid
from the reservoir. When turning the PPCH on its
side, do so carefully supporting the chassis and
main body and the mechanical drawer to avoiding
damaging the slide rails.

Document 3404639 081117

DH Instruments,
a Fluke Company

4765 East Beautiful Lane
Phoenix AZ 85044-5318 USA

Figure 2: New Pump Supply Filter P/N 3138000 (102808)

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