Table of Contents
Advertisement
Problem
Cause
Diesel engine
No fuel
does not start
Air in fuel
or stalls during
system
operation
No or not enough
battery voltage
No or bad contact
between battery and
starter motor
Fuel filter clogged
Oil pressure low
Oil temperature too
high
Check whether all inlet openings of the casing are free
Provide sufficient free space around the set
Clear the inlet openings and screens from dirt
Problem
Cause
Pump is
Incorrect direction of rotation
demanding
Foreign object in the impeller
abnormal amount
of power
The shafts are not in alignment with one
another
The shaft is bent
Rotating parts are rubbing against
stationary parts
The wear plates/ring or impeller is/are
worn
The impeller is damaged
The seal is not installed properly
Inadequate lubrication or insufficient
lubricant in the bearing housing, possibly
as a result of a leak; can be identified by
higher than normal temperature
In this application the pump is not
functioning in the intended range
The liquid has a higher s.g. or viscosity
than that for which the pump is intended
WARNING
If appear some pump defect and cannot find fault immediately contact Uprent
technical department
Detection
Check fuel level
Deaerate engine by
starting
Check battery voltage
Check connection between
battery and engine
Check fuel filter
Check oil level
Check oil level
.
Solution
Add fuel
The engine is provided
with a self-deaerating fuel
system
Recharge battery or
replace battery
Clean connection and
secure it
Replace fuel filter
Add oil
Add oil
Possible solution
Reverse direction of rotation
Clean impeller
Align unit
Replace shaft
Adjust everything and align if necessary
Adjust or replace wear parts
Repair or replace
Install properly; replace seal if necessary.
Follow good service plan
Make changes to the piping system, if
possible
Otherwise: use a different type of pump
Change temperature of liquid, if possible.
Otherwise: use a different type of pump
30
Advertisement
Table of Contents
