Multi Pro 5800Hydraulic System Page 5 − 52
Priming Hydraulic Pumps
Whenever the hydraulic system is flushed, the hydraulic
system is charged or hydraulic components are in-
stalled, it is important to properly prime the hydraulic
pumps. Hydraulic pump priming ensures that the gear
pump and piston (traction) pump have adequate oil dur-
ing initial start−up and running. The pumps can be
primed by using a remote starter switch (see Special
Tools in this chapter) to crank engine which allows the
pumps to prime.
Use the following procedure to prime the hydraulic
pumps:
1. Make sure that ignition switch is in the OFF position
and key is removed from switch.
2. Check hydraulic reservoir oil level and adjust if nec-
essary (see machine Operator’s Manual).
3. To prevent engine from starting during priming:
Diesel Engine: Disconnect wire harness electrical
connector from the engine fuel stop solenoid to pre-
vent the engine from starting (Fig. 39).
Gasoline Engine: Connect remote starter switch
electrical leads to the starter motor solenoid B+ ter-
minal and the positive post of the battery (Fig. 40).
4. Make sure traction pedal is in neutral. Turn ignition
key switch to start; engage starter for thirty (30) seconds
to prime hydraulic pumps. Wait thirty (30) seconds to al-
low the starter motor to cool and then repeat cranking
procedure again.
5. To allow to start after priming:
Diesel Engine: Connect wire harness electrical con-
nector to fuel stop solenoid.
Gasoline Engine: Disconnect remote starter switch
leads from starter motor solenoid terminal and posit-
ive post of the battery.
1. Injection pump 2. Fuel stop solenoid
Figure 39
2
1
1. Starter motor 2. B+ terminal
Figure 40
1
2
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