Sand Pro 2040Z Page 4 - 29 Hydraulic System
Charge Hydraulic System
NOTE: When initially starting the hydraulic system with
new or rebuilt components, it is important that the hy-
draulic system be charged properly. Air must be purged
from the complete system to reduce the chance of dam-
age.
IMPORTANT: Change hydraulic oil filters whenever
hydraulic components are repaired or replaced.
1. Park machine on a level surface with the engine off.
2. Read the General Precautions for Removing a nd
Installing Hydraulic System Components at the begin-
ning of this section.
3. Make sure all hydraulic connections, lines and com-
ponents are secured tightly.
4. If component failure was severe or if the hydraulic
system is contaminated, flush and refill hydraulic sys-
tem (see Flush Hydraulic System in this section).
5. Make sure hydraulic reservoirs are full. Add correct
oil if necessary.
6. Check traction control components for proper adjust-
ment, binding or broken parts.
7. Disconnect and ground engine spark plug wires to
prevent the engine from starting.
8. Make sure both motion control handles and rear at-
tachment switch are in the neutral position. Turn ignition
switch to START and engage starter for ten (10) se-
conds to prime the transmissions. Wait sixty (60) sec-
onds to allow the starter motor to cool and then repeat
this step again.
9. Connect spark plug wires to spark plugs.
WARNING
Before jacking up the machine, review and follow
Jacking Instructions in Chapter 1 - Safety.
10.Raise and support machine with appropriate jack
stands so that wheels are just off the ground to allow the
wheels to rotate freely.
CAUTION
Drive (rear) wheels will be off the ground. Make
sure machine is supported so it will not move
and accidentally fall to prevent injury.
11. Make sure both motion control handles and rear at-
tachment switch are in neutral. Start engine and run at
low idle speed (1750 RPM). The transmission charge
pumps should pick up oil and f ill the hydraulic system.
If there is no indication of fill in thirty (30) seconds, stop
the engine and determine the cause.
12.After t he hydraulic system starts to show signs of fill,
actuate rear attachment switch until the lift cylinder
moves in and out several times. If the cylinder does not
move after ten (10) to fifteen (15) seconds or if the trans-
mission emits abnormal sounds, shut the engine off im-
mediately and determine cause or problem. Inspect for
the following:
A. Incorrect oil level in hydraulic reservoir(s).
B. Loose oil filter.
C. Incorrect hydraulic hose routing t o hydraulic con-
trol manifold and/or lift cylinder.
D. Consider a faulty implement relief valve in right
side transmission or a faulty charge pump in either
transmission. The transmission has to be removed,
disassembled and inspection for these items.
13.Once lift cylinder does move in ten (10) to fifteen (15)
seconds, proceed to step 14.
14.Place suitable weight in operator seat to allow trac-
tion circuit to be engaged. Also, make sure that parking
brake is released.
15.Operate the motion control handles in the forward
and reverse directions. Once wheel rotation is checked,
stop engine.
16.Adjust motion control handles to the neutral position
so that rear wheels do not move in neutral (see Opera-
tor’s Manual).
17.Lower machine to ground.
18.If either transmission was replaced or rebuilt, oper-
atethemachinesoallwheels turn slowly for ten (10)
minutes.
19.Operate machine by gradually increasing its work
load to full over a ten (10) minute period.
20.Stop the machine. Check hydraulic oil level and ad-
just if necessary. Check hydraulic components for leaks.
Tighten any loose connections.
Hydraulic
System
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