Zoeller 71 Series Repair Manual

NOTICE TO INSTALLER: Instructions must remain with installation.
Product information presented
here reflects conditions at time
of publication. Consult factory
regarding discrepancies or
inconsistencies.
71 SERIES SUBMERSIBLE GRINDER UNITS
Since 1939 the name Zoeller
submersible dewatering and sewage pumps. The same high quality
workmanship and easy maintenance design has been incorporated
into this line of heavy-duty submersible grinder pumps.
This manual incorporates the parts list and repair instructions into
one document to aid in the ownership of a Zoeller
wastewater product. Please read and review this manual before repairing

Table of Contents

Safety Instructions ....................................................................... 1
Replacement Parts List ............................................................2-3
Disassembly Procedures ............................................................. 4
Assembly Procedures ...............................................................5-6
Pump Wiring Diagrams ................................................................ 7
Service Checklist .......................................................................... 8
To Order Replacement Parts
PLEASE FURNISH THE FOLLOWING INFORMATION:
• Model Number
• Part Number of Pump
• Serial Number
• System Voltage
• Replacement Part Number and Description. (refer to pages 2 & 3)
Short Term Storage
Storage of six months or less will not damage the submersible pump.
However, to ensure the best possible protection, the following is
advised:
• Store pump inside whenever possible or cover with some type of
protective covering.
• Tape or seal in plastic bag the terminal ends of wire leads.
• Spray coat unpainted surfaces with rust-inhibiting oil.
• See ZM1789-Owner's Manual before start-up.
MAIL TO: P.O. BOX 16347 • Louisville, KY 40256-0347
SHIP TO: 3649 Cane Run Road • Louisville, KY 40211-1961
(502) 778-2731 • 1 (800) 928-PUMP • FAX (502) 774-3624
REPAIR MANUAL
has represented the standard for
®
submersible grinder
®
© Copyright 2020 Zoeller
the product. Follow the steps and procedures listed on ZM1074 for a
proper start-up upon installation. Many items contained within, when
followed correctly, will not only ensure a long and problem-free life for
the pump, but also save time and money during installation. Reference
ZM1789 for owner's manual on 71 Series Pumps. Should further
assistance be necessary please call our Product Support Department
at 1-800-928-PUMP (7867).

Safety Instructions

TO AVOID SERIOUS OR FATAL PERSONAL INJURY OR MAJOR
PROPERTY DAMAGE, READ AND FOLLOW ALL SAFETY
INSTRUCTIONS IN THIS MANUAL AND ON THE PUMP.
THIS MANUAL IS INTENDED TO ASSIST IN THE INSTALLATION
AND OPERATION OF THIS UNIT AND MUST BE KEPT WITH
THE PUMP.
This is a SAFETY ALERT SYMBOL.
When you see this symbol on the pump or in the
manual, look for one of the following signal words
and be alert to the potential for personal injury or
property damage.
Warns of hazards that WILL cause serious personal
injury, death or major property damage.
Warns of hazards that CAN cause serious personal
injury, death or major property damage.
Warns of hazards that CAN cause personal injury
CAUTION
or property damage.
INDICATES SPECIAL INSTRUCTIONS WHICH ARE
VERY IMPORTANT AND MUST BE FOLLOWED.
THOROUGHLY REVIEW ALL INSTRUCTIONS AND WARNINGS
PRIOR TO PERFORMING ANY WORK ON THIS PUMP.
MAINTAIN ALL SAFETY DECALS.
Co. All rights reserved.
®
SECTION: Z4.20.150
ZM1788
Supersedes
Visit our website:
zoellerengineered.com
1120
0714