Filtertechnik
1 Central Park, Lenton Lane, Nottingham, NG7 2NR
Tel:
+44 (0)115 9003 600
Email:
Fax:
+44 (0)115 986 8875
Registered in England No: 03969985 VAT No: 760 821 731
Certification No. UK002838
Page 9 of 15
Troubleshooting
Symptom
Problem
Solution
No flow
No oil in filter housing
Run the unit for a few seconds
Erratic pump noise
Suction leak
Check inlet fittings and hoses
No suction
Blocked strainer
Clean or replace strainer
Reduced oil flow
High viscosity
Element dirty
Obstruction in hoses
Suction leak
Worn diaphragm
Normal for H.V fluids
Replace element(s)
Clean hoses
Check tightness of fittings
Replace gears
Element indicator shows
red
Element dirty
Oil extremely cold
Oil viscous
Obstructed outlet
Defective indicator
Replace or clean element
Allow system time to heat up
Increase element micron size
Clear outlet obstruction
Replace indicator
Indicator does not move
No element fitted
Defective indicator
Install element
Replace indicator
Hoses discolour
Fluid Compatibility
May occur over time, should not impair
performance
Hoses becoming rigid
Fluid Compatibility
Brittle hoses would require replacement
Oil spills under unit
Defective seal
Hose leaks
Replace seals where necessary
Tighten all joints
