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an
PROBLEM
The drawbar of the sprayer
has become noisy and loose
n
tion
PROBLEM
Induction hopper is not
performing as well as it
should
l
PROBLEM
No water at boom.
Brakes
PROBLEM
Sprayer is stopping
inconsistently
The brakes are screeching or
squealing.
ra li
PROBLEM
All hydraulic functions are
unresponsive
No hydraulic pressure
The air bags are not inflating
114 - Chapter 11 - Troubleshooting
a i
COMMON CAUSES
Worn, or missing, plastic insert
in towing eye
opper
COMMON CAUSES
Insufficient flow to venturi in
the hopper bottom
Air leaks on induction system
in
COMMON CAUSES
No Tier valve entered or is at 0
COMMON CAUSES
Grease or oil on the brake
shoes
Braking linkage is damaged
Insufficient friction material on
brake shoes.
ne
COMMON CAUSES
Unloader(s) malfunction or
disconnected
Low hydraulic oil level
Fill pump is engaged
Low system pressure
Compressor not working
properly
eel
ati
COMMON SOLUTION
Replace plastic insert
COMMON SOLUTION
Check the pressure supplied to the hopper
bottom is around 550 kPa (80 PSI).
Check all hoses, clamps, and cam lever
fittings are sealed
COMMON SOLUTION
Enter value greater than 0
COMMON SOLUTION
Clean the shoes with a clean cloth and
methylated spirits.
Inspect braking system and repair as
necessary
Inspect brake shoes and replace
immediately if worn beyond wear
indicators.
COMMON SOLUTION
Check electrical connection to spool block
unloader and Norac unloader if fitted.
Check that power is present at connector
to spool block unloader and Norac
unloader if fitted. If no power then check
fuses. Check for physical malfunction to
unloader(s) and replace as necessary.
Check the oil level in the hydraulic
reservoir and top up if necessary
Switch the hydraulic fill pump off
The bags will not inflate until the pressure
in the system is above 75 PSI, check system
pressure.
Check that the compressor is working
correctly
Prairie Pro Operator's Manual MY19 - REV 2
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