Running The Engine; Performance Chart; Troubleshooting Guide - Flotec N4151060 Notice D'utilisation

RUNNING THE ENGINE

Refer to engine operation part of this manual for starting and
operating instructions.
Pump performance varies depending on engine R.P.M.
Refer to engine operation to adjust engine speed.
Technical Data
Absorbed power
Suction and Outlet fitting
Max flow rate
Max Head
Maximum suction height including load lossesq
weight
Max.dim.of solids handled
Max.working pressure
min.ambient temperature
max.ambient temperature
Max.temperature of fluid being pump
sound power level
Sound emission values obtained in conformity with the EN12639 standard - Measurement method according to EN ISO 3744
SYMPTOM
No water delivered
Not enough water delivered
Not enough pressure
Engine heats excessively
Abnormal noise and/or vibration
Pump works for a while, then stops
CAUSE
1. ENGINE
A. Speed too low
B. Rotating and/or reciprocating parts drag
C. Speed too high
D. Loose or broken parts
2. PUMP
E. Not primed
F. Pump takes too long to prime
G. Flow through pump completely
or partially blocked
H. Internal leakage
I. Rotating parts drag
J. Loose or broken parts
3. SYSTEM
K. Pressure required by system at design
flow rate exceeds pressure rating of pump
L. Obstruction in suction piping
M. Suction lift too high
N. Discharge head too low
O. Suction inlet not immersed deep enough
P. Leaky suction line or connection admitting air

Performance Chart

Troubleshooting Guide

ENGINE
A B C D E
X
X
X
X X
X X
X
Refer to engine section
Refer to engine section
Maximum engine speed not to exceed engine manufacturer's recommendation.
Refer to engine section
Reprime, inspect suction system for air leaks, and or clack assembly.
Check for air leaks or defective check valve.
Locate and remove obstruction. Attach strainer.
Check clearances between face of vanes and case. Should not exceed 1/32".
Inspect. Repair.
Inspect. Repair.
Compare pump pressure and flow rate against pump performance chart.
Reduce system pressure requirement. Increase pressure capability of pump.
Locate and remove obstruction. Attach strainer.
Check with gauge or measure vertical distance between water surface and
center line of pump, allowing for friction loss in suction pipe. Reduce rate of
flow to obtain desired lift. Refer to pump performance chart.
Decrease rate of flow
Refer to "Installation"
Repair or replace suction line. Tighten connections.
MAINTENANCE
PUMP LUBRICATION
Pump liquid end does not require any grease or oil for lubri-
cation. The mechanical seal is lubricated by water when the
pump is operating.
N4151060
5,5 HP
2"BSP
36.300 l/h
34
7,6 m
22,3 Kg
9,5 mm
34 m
0° C
50° C
32° C
106 db
PROBABLE CAUSE
PUMP
F G H I J
X X
X X
X X
X X X
X X
X X
CORRECTIVE ACTION
4
SYSTEM
K L M N O
X X X
X X X
X X X
X X
X X X
X X
P
X
X
X