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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. If they ever fail, we will replace them free of charge. Our other pump
parts, used in portable pressure washers and in car wash applications, are warranted
for five years from the date of shipment for all pumps used in NON-SALINE, clean
water applications.

2.

One (1) year from the date of shipment for all other Giant industrial and consumer
pumps.

3.

Six (6) months from the date of shipment for all rebuilt pumps.

4.

Ninety (90) days from the date of shipment for all Giant accessories.

This warranty is limited to repair or replacement of pumps and accessories of which the  manufacturer’s
evaluation shows were defective at the time of shipment by the manufacturer.  The following items
are NOT covered or will void the warranty:

1.

Defects caused by negligence or fault of the buyer or third party.

2.

Normal wear and tear to standard wear parts.

3.

Use of repair parts other than those manufactured or authorized by Giant.

4.

Improper use of the product as a component part.

5.

Changes or modifications made by the customer or third party.

6.

The operation of pumps and or accessories exceeding the specifications set forth
in the Operations Manuals provided by Giant Industries, Inc.

Liability under this warranty is on all non-wear parts and limited to the replacement or repair of those
products returned freight prepaid to Giant Industries which are deemed to be defective due to
workmanship or failure of material.  A Returned Goods Authorization (R.G.A.) number and completed
warranty evaluation form is required  prior to the return to Giant Industries of all products under
warranty consideration.  Call (419)-531-4600 or fax (419)-531-6836 to obtain an R.G.A. number.

Repair or replacement of defective products as provided is the sole and exclusive remedy provided
here under and the MANUFACTURER SHALL NOT BE LIABLE FOR FURTHER LOSS, DAMAGES,
OR EXPENSES, INCLUDING INCIDENTAL AND CONSEQUENTIAL DAMAGES DIRECTLY OR
INDIRECTLY ARISING FROM THE SALE OR USE OF THIS PRODUCT.

THE LIMITED WARRANTY SET FORTH HEREIN IS IN LIEU OF ALL OTHER WARRANTIES OR
REPRESENTATION, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY WAR-
RANTIES OR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE AND ALL SUCH
WARRANTIES ARE HEREBY DISCLAIMED AND EXCLUDED BY THE MANUFACTURER.

GIANT INDUSTRIES, INC.

 900 N. Westwood Ave.,  P.O. Box 3187, Toledo, Ohio  43607

Phone: (419)-531-4600  FAX (419)-531-6836, www.giantpumps.com

  

Copyright 2002 Giant Industries, Inc.

2/02 LP350.PM6

LP350, LP400 & LP450 DIMENSIONS 

(inches)

Summary of Contents for Triplex Ceramic Plunger Pump LP350

Page 1: ...ervice Manual Contents Installation Instructions page 2 PumpSpecifications pages 3 5 Exploded View page 6 Parts List Kits Torque Specs page 7 Trouble Shooting Chart page 8 Spare Parts List page 8 Repair Instructions page 9 11 Dimensions back page Warranty Information back page Updated 2 02 ...

Page 2: ...ration from Giant Industries Inc 4 Run the pump dry approximately 10 seconds to drain the water before exposure to freezing temperatures 1 Prior to initial operation add oil to the crankcase so that oil level is between the two lines on the oil dipstick DO NOT OVERFILL Use SAE 90 Industrial gear oil Crankcase oil should be changed after the first 50 hours of operation then at regular intervals of ...

Page 3: ...otor and pump pulley from the same line 2 The desired pressure is achieved by selecting the correct nozzle size that corresponds with the pump GPM HORSEPOWER INFORMATION Horsepower ratings shown are the power require ments for the pump Gas engine power outputs must be approximately twice the pump power requirements shown above We recommend that a 1 1 service factor be specified when selecting an e...

Page 4: ...r and pump pulley from the same line 2 The desired pressure is achieved by selecting the correct nozzle size that corresponds with the pump GPM HORSEPOWER INFORMATION Horsepower ratings shown are the power require ments for the pump Gas engine power outputs must be approximately twice the pump power requirements shown above We recommend that a 1 1 service factor be specified when selecting an elec...

Page 5: ...r and pump pulley from the same line 2 The desired pressure is achieved by selecting the correct nozzle size that corresponds with the pump GPM HORSEPOWER INFORMATION Horsepower ratings shown are the power require ments for the pump Gas engine power outputs must be approximately twice the pump power requirements shown above We recommend that a 1 1 service factor be specified when selecting an elec...

Page 6: ...6 LP350 LP400 LP450 EXPLODED VIEW ...

Page 7: ...50 3 42 07338 Pressure Spring LP400 3 42 14084 Pressure Spring LP350 LP450 3 43 13018 Valve Casing 1 44A 07150 O Ring 9 44B 06266 Support Ring 3 45 06078 CompressionSpring 3 46 07060 Valve Assy 6 46A 07064 Valve Seat 6 46B 07063 Valve Plate 6 46C 07062 Valve Spring 6 46D 07066 Spacer Pipe 6 48 07156 Plug 3 49 07754 Stud bolt 8 49A 07158 Hexagon Nut 8 49B 07159 Disc 8 50 07423 Plug 1 4 BSP 1 50A 07...

Page 8: ...Drop leaks correctly sized inlet plumbing to pump Accumulator pressure Recharge Replace accumulator Unloader Check for proper operation Cavitation Check inlet lines for restrictions and or proper size Pump Pressure as Restricted discharge plumbing Re size discharge plumbing to Drop at gun flow rate of pump Rated Pressure Excessive Worn plungers Replace plungers Leakage Worn packing seals Adjust or...

Page 9: ...top of valve casing 43 2 Remove discharge and inlet valve assemblies 46 by pulling them upwards out of the valve casing 43 It maybe necessary to use a slide hammer tool 3 With the valve assembly 46 pointed down place a dowel rod through the top of spacer pipe 46D Hold assembly in hand and tap end of dowel sharply with mallet until as sembly breaks free 6 Remove the eight 8 manifold nuts and washer...

Page 10: ...n both sur faces of copper gasket and tension screw threads Se cure plunger in place with tension screw and gasket and tighten to 33 ft lbs REPAIR INSTRUCTION LP350 LP400 LP450 12 Remove v sleeves 40 and support ring 41 for seal case 37 and replace with new elastomers Lubricate parts before reinstalling into seal sleeve Replace seal sleeve seal case assembly 35 37 into the valve casing 43 35 39 40...

Page 11: ... edge lines up with the outer edge of the bearing hole 1 6 Remove the bearing cover 14 together with the shaft seal 15 and o ring 16 Fit crankshaft through bearing hole on the opposite side 7 Press in outer bearing 20 inwards with the bearing cover 14 Make sure that the crankshaft is in a vertical position and turn it slowly so that the taper rollers of the bearings touch the edge of outer bearing...

Page 12: ...ications made by the customer or third party 6 The operation of pumps and or accessories exceeding the specifications set forth in the Operations Manuals provided by Giant Industries Inc Liability under this warranty is on all non wear parts and limited to the replacement or repair of those products returned freight prepaid to Giant Industries which are deemed to be defective due to workmanshiporf...

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