I-120
GH Pump 120 ā 16.02.EN
INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS
TABLE OF CONTENTS
SECTION/PARAGRAPH PAGE
I. GENERAL DESCRIPTION ............................... 1
A. General Information ................................... 1
B. Machinery Directive 2006/42/EC ............... 1
C. Disclaimer .................................................. 1
D. Personnel Qualification and Training ......... 1
E. Pump Identification..................................... 2
F. Parts Inventory Guide ................................ 2
G. Parts Ordering ............................................ 2
H. Unauthorized Modification and
Manufacture of Spare Parts ..................... 2
I. Unauthorized Modes of Operation ............. 2
II. SAFETY ............................................................ 2
A. Safety Precautions ..................................... 2
B. Summary of Safety Marking ....................... 2
C. Scope of Compliance ................................. 3
D. Safety Awareness ...................................... 3
E. Safety Instructions for the Operator/User .. 3
F. Safety Instructions for Maintenance
Inspection and Installation Work ............ 3
G. General Safety Instructions ........................ 3
H. Non-Compliance with Safety Instructions .. 4
III. EQUIPMENT DESCRIPTION ........................... 4
IV. EFFECTS OF FLUIDS ..................................... 5
A. Net Positive Suction Head (NPSH) ............ 5
B. Changing Pump Speed .............................. 5
C. Effects of Viscosity ..................................... 5
D. Effects of Specific Gravity .......................... 5
V. TECHNICAL DATA ........................................... 5
VI. INSPECTION AND STORAGE ........................ 8
A. Inspection ................................................... 8
B. Packing for Return ..................................... 8
C. Storage of Pump ........................................ 8
VII. INSTALLATION ................................................ 9
A. Location ...................................................... 9
B. Handling ..................................................... 9
C. Foundation ................................................. 9
SECTION/PARAGRAPH PAGE
D. Leveling of Unit .......................................... 10
E. Grouting ..................................................... 10
F. Coupling Alignment .................................... 11
G. Pre-Installation Procedures ....................... 12
H. Piping ......................................................... 12
I. Auxiliary Piping Connections
and Gauges ........................................... 12
J. Motor .......................................................... 12
K. Direction of Rotation .................................. 12
VIII. OPERATION .................................................... 13
A. Pre-Start Cautions ..................................... 13
B. Priming ....................................................... 13
C. Starting the Pump ...................................... 13
D. Operating Checks ...................................... 14
E. Stopping the Pump .................................... 14
F. Indefinite Shutdown ................................... 14
IX. TROUBLESHOOTING OPERATING
PROBLEMS ...................................................... 14
X. MAINTENANCE ............................................... 17
A. Lubrication of Pump Bearings .................... 17
B. Lubrication of Motor Bearings .................... 18
C. Torque Values ............................................ 18
XI. SERVICE AND REPAIR ................................... 18
A. Preparations for Disassembly of Pump ..... 18
B. Disassembly of Pump ................................ 19
C. Parts Inspection ......................................... 21
D. Reassembly of Pump ................................. 23
E. Replacement of Packing ............................ 25
F. Replacement of Mechanical Seal .............. 26
G. Replacement of Optional Wear Ring on
Pump Equipped with Enclosed Impeller .... 27
H. Motor .......................................................... 27
I. Check Valve ............................................... 27
XII. PARTS LISTS AND DRAWINGS ..................... 27