Multi Pro 5800 Page 10 − 27 Ultra Sonic Boom Kit (Optional)
NOTE: The boom lift control manifold includes two (2)
zero leak plugs. These plugs have a tapered sealing
surface on the plug head that is designed to resist vibra-
tion induced plug loosening. The zero leak plugs also
have an O−ring as a secondary seal. If zero leak plug re-
moval is necessary, lightly rap the plug head using a
punch and hammer before using a wrench to remove
the plug: the impact will allow plug removal with less
chance of damage to the head of the plug.
WARNING
Make sure that spray booms are fully lowered be-
fore loosening hydraulic lines, cartridge valves
or plugs from boom lift control manifold. If
booms are not fully lowered as manifold compo-
nents are loosened, booms may drop unexpect-
edly.
CAUTION
Rotate steering wheel and depress traction ped-
al in both forward and reverse to relieve hydrau-
lic system pressure and to avoid injury from
pressurized hydraulic oil.
For boom lift manifold cartridge valve service proce-
dures, see Spray Pump Control Manifold Service in the
Service and Repairs section of Chapter 4 − Hydraulic
System. Refer to Figure 23 for manifold cartridge valve
and plug installation torque.
NOTE: The six (6) solenoid valve coils on the boom lift
control manifold are identical. To assist in troubleshoot-
ing, identical coils can be exchanged. If the problem fol-
lows the exchanged coil, an electrical problem likely
exists with the coil. If the problem remains unchanged,
something other than the solenoid coil is the problem
source (e.g. a hydraulic problem exists).
For solenoid valve coil testing procedures, see Hy-
draulic Solenoid Valve Coils in Chapter 6 − Electrical
System in this manual. Refer to Figure 23 for solenoid
valve coil installation torque.
Figure 24
TOP
PT
G
LC
S3
SH
OR
S4
S2
C2 C1 C3 C4
S5
RIGHT CYLINDER
RETRACT TO RAISE
LEFT CYLINDER
RETRACT TO RAISE
COIL
BOTTOM
COIL
TOP
COIL
BOTTOM
COIL
CONTROL
VALVE
STEERING
FROM
HYDRAULIC
RESERVOIR
FILTER AND
TO OIL
1. Boom lift manifold
2. Solenoid S2
3. Solenoid S3
4. Solenoid S4
5. Solenoid S5
6. Logic cartridge LC
Figure 25
123
45
6
FRONT
Ultra Sonic
Boom System
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