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SERVICING THE SEALS

Disassembly

1. Remove the Manifold Head as described in SERVICING

THE PLUNGERS section.

2. Place Manifold Head on work surface with crankcase

side up.

3. On 5PFR and 7PFR plunger pumps prior to May of 1989,

remove Snap Ring and Lo-Pressure Seal from each Seal
Case. Discard Snap Rings (refer to Tech Bulletin 054).

4. On 5PFR and 7PFR plunger pumps after May of 1989, re-

move Lo-Pressure Seal from each Seal Case.

5. On 15PFR plunger pumps, remove Snap Ring and

Lo-Pressure Seal from each Seal Case.

6. Remove Seal Case from each seal chamber. Remove

O-Ring from outside diameter of Seal Case.

7. Hi-Pressure Seal Models: The Hi-Pressure Seal is gener-

ally easily removed from the manifold without any tools. If
extremely worn a reverse pliers may be used.

8. V-Packing Models: The Female Adapter, V-Packings and

Male Adapter are easily removed from manifold without
any tools. If extremely worn a reverse pliers may be used.

Reassembly

V-Packing Models:

1. Lubricate seal chamber in the manifold.

NOTE: For certain applications apply liquid gasket to
the O-Ring crevices and seal surfaces (refer to Tech
Bulletin 053).

2. Insert Male Adapter with notches down and “v” side up

and press completely into chamber by hand.

3. Lubricate V-Packings and install one at a time with

grooved side down.

4. Install Female Adapter with grooved side down.

5. Examine Seal Case O-Ring and replace if worn. Lubricate

new O-Rings before installing.

6. Thread Seal Case into manifold and tighten with special

seal case tool. Torque per chart.

Separating Manifold Head from Crankcase

Removal of Manifold Head from Crankcase

Removal of Seal Retainers and Wicks

Seal and V-Packing Arrangement

Installation of Male Adapter

Order of Packings [MA, VP, FA]

V-P Models

H.P.S. Models

Содержание 340

Страница 1: ...ure regulating devices and also for proper sizing of the nozzle or restricting orifice The pump is rated for a maximum pressure this is the pressure that is read at the discharge manifold of the pump NOT AT THE GUN OR NOZZLE Use PTFE thread tape or pipe thread sealant sparingly connect accessories or plumbing Exercise caution not to wrap tape beyond the last thread to avoid tape from becoming lodg...

Страница 2: ...al wear or breaks in the structure and replace as needed 2 Examine Springs for fatigue or breaks and replace as needed 3 Examine Valves and Seats for grooves pitting or wear and replace as needed 4 Examine Seat and Valve Plug O Rings for cuts or wear and replace as needed Lubricate and install new O Ring onto outside diameter of Seat and Valve Plugs NOTE Inlet and discharge valve parts are interch...

Страница 3: ... Models The Female Adapter V Packings and Male Adapter are easily removed from manifold without any tools If extremely worn a reverse pliers may be used Reassembly V Packing Models 1 Lubricate seal chamber in the manifold NOTE For certain applications apply liquid gasket to the O Ring crevices and seal surfaces refer to Tech Bulletin 053 2 Insert Male Adapter with notches down and v side up and pr...

Страница 4: ...17 hex tool on the 15PFR pumps remove the two 2 Socket Head Screws and two 2 Lockwashers or four 4 Flanged Nuts 2 Rotate Crankshaft by hand to start separation of Manifold head from Crankcase 3 Insert two flat head screwdrivers on opposite sides to further separate Manifold Head from Crankcase or support the underside of the Manifold Head and tap lightly with a mallet on the backside of the Manifo...

Страница 5: ...n and Manifold Port 310 317 323 530 550 035 Servicing Crankcase Section 7PFR 60PFR 036 Cylinder and Plunger Reference Chart All Models 043 LPS and HPS Servicing All Plunger Models 045 One Piece S S Plunger Retainer w Stud 5PFR 7PFR 15PFR 046 Valve Plug with Coil Spring 317 347 357 1057 047 Blind Bearing Shaft Cover Gearbox Plunger Pumps 048 Extended Valve Plug 7PFR and 15PFR 049 Stainless Steel Ha...

Страница 6: ...T with negative inlet pressure A stand pipe can be used in some applications to help maintain a positive head at the pump inlet Inspect and clean inlet filters on a regular schedule to avoid flow restriction A pressure transducer is necessary to accurately read inlet pressure Short term intermittent cavitation will not register on a standard gauge All accessories should be sized to avoid restricti...

Страница 7: ...34 10 4 6 220 52 16 7 1 8 300 80 25 10 2 10 450 120 38 14 3 15 900 250 80 30 7 20 1600 400 121 50 12 25 650 200 76 19 30 250 96 24 40 410 162 42 50 600 235 62 60 370 93 At a fixed flow rate with a given size hose the pressure drop across a given hose length will be directly proportional A 50 ft hose will exhibit one half the pressure drop of a 100 ft hose Above values shown are valid at all pressu...

Страница 8: ...e If low recharge or install a new dampener Foreign material trapped in inlet discharge valves Clean inlet discharge valves or install new valve kit Water leak Under the manifold Worn V Packings Hi Pressure or Lo Pressure Seals Install new seal kit Increase frequency of service Worn adapter o rings Install new o rings Into the crankcase Humid air condensing into water inside the crankcase Install ...

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