SECTION 10 –
MISCELLANEOUS
10-38
Erratic reading on pressure
gauge
• Orifice in back of gauge
clogged
• Faulty gauge
• Air leak in suction line
• Solution strainer plugged
• Glycerin leaking from pressure
gauge
• Remove gauge, clean orifice,
reinstall
• Replace gauge
• Inspect and tighten all fittings
in suction line
• Check solution strainer
• Replace gauge
Electric solution valve
malfunction
• Faulty ground
• Dirty contact terminals
• Separation in wire
• Faulty switch
• Bad valve
• Clean and tighten ground
• Clean contact terminals
• Check continuity and replace
wire
• Replace switch
• Replace valve
Solution pump not producing
adequate pressure
• Clogged line strainer screen
• Air leak in suction flow to pump
• Restricted solution flow to
pump
• Suction hose collapsed
• Hydraulic failure
• Remove screen, clean
thoroughly, tighten strainer cap
to avoid air leak
• Inspect and tighten all fittings
on suction line
• Ensure Main Tank Valve is
completely open
• Obstruction at inlet end of hose
causing high vacuum on hose
• Contact your local John Deere
dealer for assistance
Machine will not move in either
direction
• Engine speed too low
• Oil level in hydraulic reservoir
too low
• Clogged pressure filter
• Hydrostatic System failure
• Set engine at operating RPM
• Fill hydraulic reservoir to
proper level with approved oil
• Replace pressure filter
• Contact your local John Deere
dealer for assistance
Machine will move in only one
direction
• Hydrostatic System failure
• Contact your local John Deere
dealer for assistance
Hydrostatic system responding
slowly
• Engine speed too low
• Oil in hydraulic reservoir low
• Cold oil
• Plugged filter
• Partially restricted suction line
• Hydrostatic System failure
• Set engine at operating RPM
• Fill hydraulic reservoir to
proper level with approved oil
• Allow adequate warm-up
period
• Check and replace filter
• Inspect for collapsed suction
hose
• Contact your local John Deere
dealer for assistance
Noisy hydrostatic system
• Cold oil
• Low engine speed
• Oil level in hydraulic reservoir
low
• Hydrostatic System failure
• Allow adequate warm-up
period
• Increase engine speed
• Fill hydraulic reservoir to
proper level with approved oil
• Contact your local John Deere
dealer for assistance
Содержание UpFront STS 16
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