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Deming 4021 - User Manual

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A Crane Co. Company
IMPORTANT! Read all instructions in this manual before operating pump.
As a result of Crane Pumps & Systems, Inc., constant product improvement program,
product changes may occur. As such Crane Pumps & Systems reserves the right to
change product without prior written noti cation.
420 Third Street 83 West Drive, Bramton
Piqua, Ohio 45356 Ontario, Canada L6T 2J6
Phone: (937) 778-8947 Phone: (905) 457-6223
Fax: (937) 773-7157 Fax: (905) 457-2650
www.cranepumps.com
Form No. 119999-Rev. F
Series: 4001, 4011
4021, 4021H
DEMING
DEMING
®
INSTALLATION, OPERATION & MAINTENANCE MANUAL
End-suction Centrifugal Pumps
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Summary

SAFETY FIRST!

Important Warnings

Warns about hazards resulting in personal injury or equipment damage if ignored.

Electrical Safety

Instructions for safe electrical connections and grounding to prevent shock.

C - INSTALLATION

Shaft Alignment

Instructions for aligning pump and motor shafts using a flexible coupling.

E - IMPELLER ADJUSTMENT

Axial Adjustment Procedure

How to adjust the impeller axially for wear or capacity using the adjusting nut.

H - LIQUID END INSPECTION AND REPAIR

BEARINGS AND SHAFT MAINTENANCE

PUMP END REASSEMBLY AND SEAL REPLACEMENT

Single Mechanical Seal Replacement

Detailed steps for replacing a single mechanical seal, including handling precautions.

N - DOUBLE MECHANICAL SEAL REPLACEMENT

O - LOCATING TROUBLE

Troubleshooting: No Liquid Delivered

Common causes for a pump delivering no liquid, such as wrong rotation or priming issues.

Troubleshooting: Insufficient Liquid

Reasons for insufficient liquid delivery, like high head or air leaks.

PUMP COMPONENTS AND PARTS

WARRANTY DETAILS AND CONDITIONS

Limited 24 Month Warranty Coverage

Explains the duration, terms, and conditions of the limited warranty.

Warranty Exclusions and Purchaser Responsibilities

Details factors that void the warranty and customer obligations.

START-UP REPORT PROCEDURES

General and Nameplate Data

Sections for recording owner details, location, and pump/motor specifications.

Control Panel and Pre-Startup Checks

Checks for control panel compliance and pre-startup conditions for all pump types.

START-UP REPORT - OPERATIONAL CHECKS

Submersible Pump Electrical and Operational Checks

Procedures for electrical measurements and operational verification of submersible pumps.

Deming 4021 Specifications

General IconGeneral
BrandDeming
Model4021
CategoryWater Pump
LanguageEnglish

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