Landa VHG Operator's Manual page 35

PROBLEM
OIL DRIPPING Oil seal worn
Faulty pressure gauge
Insufficient water supply
Old, worn or incorrect spray nozzle
Belt Slippage
Plumbing or hose leak
Faulty or mis-adjusted unloader valve
LOW
(where applicable)
OPERATING
Worn packing in pump
PRESSURE
Fouled or dirty inlet or discharge valves
in pump
Worn inlet or discharge valves
Obstruction in spray nozzle
Leaking pressure control valve
(where applicable)
Detergent metering valve left open
sucking air or faulty metering valve
Slow motor RPM
Improper size of gas lines
Low gas pressure
Improper pressure regulator
LOW
WATER
Low gas pressure
TEMPERATURE
Soot buildup on coils not allowing heat
transfer
Improper burner nozzle
POSSIBLE CAUSE
Landa VHG Operator's Manual 8.913-952.0 - BR
SOLUTION
Check and replace if necessary.
Install new gauge.
Use larger garden hose. Clean filter washer at
water inlet.
Match nozzle number to machine
and /or replace new nozzle.
Tighten or replace. Use correct belt.
Check plumbing system for leaks.
Re-tape leaks with teflon tape.
Adjust unloader for proper pressure. Install repair
kit when needed.
Install new packing kit.
Clean inlet and discharge valve.
Replace with valve kit.
Remove obstruction.
Rebuild or replace as needed.
Close and /or replace metering valve.
Check incoming voltage.
See sizing gas lines.
Increase gas pressure to machine.
Specify BTU, building gas pressure 11 w.c.i.
to machine for correct sizing of regulator.
Increase gas pressure
Clean coils.
See serial plate.
35