ANDREOLI
ENGINEERING
Operator’s Manual
Self-propelled sprayer ATOM
163/166
Pump noisy
Air suction
Check suction hoses, suction filter
and pump suction manifold
Springs of pump valves broken or
worn out
Replace springs
Presence of dirt in pump valves
Check and clean
Bearings worn out
Replace
Excessive temperature of the
mixture
Cool the mixture
Presence of water in pump oil
Diaphragms broken
Replace
Seals worn out
Check and/or replace
Pump oil leak
Seals worn out
Check and/or replace
Excessive vibrations on pump
pressure hoses
Pressure accumulator discharged
Check the pressure on the
accumulator and/or replace the
diaphragm
Valves worn out or obstructed
Check and/or replace
Blower fan does not start
Engine revs too high
Slow down revs below 1200 rpm
Electric connection faulty
Check and restore the connection
Electric clutch faulty
Check and/or replace (1)
Non constant measurement of
spray rates
Flowmeter clogged
Check and clean
Flowmeter worn out
Replace
Speed sensor damaged
Check and/or replace
Negative hydraulic park brake
always on
Park brake hydraulic valve
damaged
Check and/or replace
Boost pressure of main pump too
low
Check main pump (1)
Tires do not stay aligned
Presence of air in the steering
hydraulic circuit
Drain air out of the circuit
Steer rams seals worn out
Replace
Steer rams alignment valves
damaged
Check and/or replace
Non uniform tires wear
Low tires pressure
Set correct inflating pressure
Hard steering
Low pressure in steering circuit
Replace pump (1)
Steer pump worn out
Replace pump (1)
Hydraulic steering gear worn out
Replace (1)
