Instruction/ maintenance manual of the product LP450 HP (Hewlett-Packard)
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Models LP350, LP400, LP450 Triplex Ceramic Plunger Pump Operating Instructions/ Repair and Service Manual Contents: Installation Instructions: page 2 Pump Specifications: pages 3-5 Exploded View: page.
2 INSTALLATION INSTRUCTIONS 4. Use of a dampener is necessary to minimize pulsation at drive elements, plumbing, connec- tions, and other system areas. The use of a dampener with Giant Industries, Inc. pumps is optional, although recommended by Giant Industries, Inc.
3 Specifications Model LP350 Volume ................................................................................................... Up to 22.6 GPM Discharge Pressure .................................................................................
4 Specifications Model LP400 Volume ................................................................................................... Up to 15.1 GPM Discharge Pressure .................................................................................
5 Specifications Model LP450 Volume ................................................................................................... Up to 19.7 GPM Discharge Pressure .................................................................................
6 LP350, LP400, LP450 - EXPLODED VIEW.
7 ITEM # PART # DESCRIPTION QTY 1 07759 Crankcase 1 2 13000 Oil filler plug assy. 1 4 06085 Crankcase Cover 1 5 07104 O-ring, Crankcase cover 1 6 07186 Oil Sightglass with Gasket 1 8 06086 Oil Dipstic.
8 PUMP SYSTEM MALFUNCTION MALFUNCTION CAUSE REMEDY The Pressure and/ Worn packing seals Replace packing seals or the Delivery Broken valve spring Replace spring Drops Belt slippage Tighten or Replace .
9 REPAIR INSTRUCTION - LP350, LP400, LP450 T O CHECK V AL VES 4) Inspect valve seats (46A) and valve plates (46B) for damage and replace if needed. Check valve casing (43) surfaces for damage. Replace o-rings (44A) and reinstall valve assemblies (46) into valve casing.
10 9) Remove seal case (37) from seal sleeve (35). 10) Check plunger surface (25 and 29B) for wear and pit- ting. If none is found, pro- ceed to step twelve. 11) If plunger (29B) is worn, re- move tension screw (29C) with a 17mm wrench. Clean tension screw with wire brush to remove any old locktite.
11 DISASSEMBLY OF CRANKCASE 1) Remove valve casing (43) and plunger pipe (29B), drain oil. 2) Screw off gear cover (4) and bearing cover (14). 3) Remove connecting rod screws (24) and push the front of connecting rod forward as far as possible. Remove back halves of connecting rods, note which position from which they came from.
GIANT INDUSTRIES LIMITED WARRANTY Giant Industries, Inc. pumps and accessories are warranted by the manufacturer to be free from defects in workmanship and material as follows: 1. For portable pressure washers and car wash applications, the discharge manifolds will never fail, period.
An important point after buying a device HP (Hewlett-Packard) LP450 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
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If you already are a holder of HP (Hewlett-Packard) LP450, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime HP (Hewlett-Packard) LP450.
However, one of the most important roles played by the user manual is to help in solving problems with HP (Hewlett-Packard) LP450. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device HP (Hewlett-Packard) LP450 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
