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The rules should oblige the seller to give the purchaser an operating instrucion of Giant LP250, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Giant LP250 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of Giant LP250. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of Giant LP250 should contain:
- informations concerning technical data of Giant LP250
- name of the manufacturer and a year of construction of the Giant LP250 item
- rules of operation, control and maintenance of the Giant LP250 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Giant LP250 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Giant LP250, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Giant service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Giant LP250.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Giant LP250 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
Model LP200, LP250 & LP250W - M T Triplex Ceramic Plunger Pump Operating Instructions/ Repair and Service Manual Updated 5/02 Contents: Installation Instructions: page 2 LP200 Specifications: page 3 Exploded View / Kits: page 4 Parts List: page 5 LP250/LP250W-MT Specifications: page 6 Repair Instructions: page 7-9 Torque Specifications: page 9 [...]
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Page 2
2 INST ALLA TION 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. to further reduce system pulsa- tion. Dampeners can also reduce the severity of [...]
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Page 3
3 V olume ........................................................................................................ U p to19.0 GPM Discharge Pressure .................................................................................... U p t o 2900 PSI Inlet Pressure ....................................................................................[...]
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Page 4
4 Exploded View - LP200, LP250 & LP250W-MT[...]
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Page 5
5 LP200, LP250 & LP250W-MT PARTS LIST LP200, LP250 & LP250W-MT REP AIR KITS 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 Sight Glass 1 7 07187 Gasket for Sight Glass 1 8 06086 Oil Dipstick Assy 1 9 01009 O-Ring, Dipstick Assy. 1 10 01010[...]
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Page 6
6 Specifications Model LP250, LP250W-MT V olume ........................................................................................................ U p t o 26.0 GPM Discharge Pressure .................................................................................... U p t o 2200 PSI Inlet Pressure ............................................[...]
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Page 7
7 LP200, LP250 & LP250W- M T - REP AIR INSTRUCTIONS 1. With a 30mm wrench, remove the (3) plugs (48). 2. Remove the compression spring (45) & o-rings (44A & 44B-LP250W -MT only). 3. Remove the complete valve assembly (46) with valve pullers. 44A 44B 45 4. Loosen valve seats (46A) from spacer pipe (46D) by lightly hitting the valve plate[...]
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Page 8
8 38 8. Remove seal case (37) from valve casing (43) and inspect o-ring (38). 9. Check plunger surface (29B). If plunger pipe is worn out, loosen tension screws (29C) and pull off plunger pipe to the front. Clean front surface of plunger (25) thoroughly . Apply a thin coat of Loctite to the tension screw threads (29C). Note: Care must be taken that[...]
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Page 9
9 T o Dismantle Gear End After removing valve casing (43) and plunger pipe (29B), drain oil. Remove gear cover (4) and bearing cover (14). Loosen connecting rod screws (24A) and push the front of the connecting rod (24) forward as far as possible into the crosshead guide. IMPOR T ANT! Connecting rods (24) are marked for identification. Do not twist[...]
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Page 10
10 PUMP SYSTEM MALFUNCTION MALFUNCTION The Pressure and/or the Delivery Drops Water in crankcase Noisy Operation Rough/Pulsating Operation with Pressure Drop Pressure Drop at Gun Excessive Leakage High Crankcase Temperature CAUSE Worn packing seals Broken valve spring Belt slippage Worn or Damaged nozzle Fouled discharge valve Fouled inlet strainer[...]
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Page 11
11 LP200, LP250 & LP250W - M T DIMENSIONS[...]
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Page 12
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 othe[...]