English
9.808-136.0 Rev. 00 (09/18)
37
6.5.14 Changing spray bar
1.
Tilt the machine back
2.
With a 3/4” open end
wrench hold the swivel sha?
from moving.
3. Remove the spray bar by
holding the swivel rod and ro-
ta ng it counter clockwise by
hand.
4. Install new spray bar. Make sure to use the cor-
rect thread sealant.
6.5.15 Changing and seOng the unloader
1. Remove the unloader
from the pump. First, re-
move the high pressure
outlet hose from the un-
loader.
2. Then with a 7/8”
open end wrench remove
the top banjo bolt fi>ngs
from the pump.
3. Then with a 1 1/4”
open end wrench remove
the bo"om banjo bolt
fi>ng from the pump.
4. Install the new un-
loader.
5. Install test gauge, test hose, test gun, test nozzle (make
sure to use size of nozzle listed on the serial plate)
1. Test machine with
spray wand trigger. Turn
the adjustment knob un l
you reach the required
2500 psi. Then release the
trigger and look for the
spike. If spike is too high
turn the adjustment knob
un l spike is under 500 psi.
Then Tighten the lock nut
Machine should have a running pres-
sure of 2500 psi and a spike pressure of
less than 500 psi.
Spike is the pressure read on the gauge
when you release the trigger minus the
running pressure of the machine.
Example:
running pressure = 2500 psi.
Pressure reading when trigger is released = 2900 psi.
Spike pressure = 400 psi ( 2500 - 2900)
