TM 5-3805-291-23-1
HYDRAULIC SYSTEM TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
0017 00
References
Equipment Conditions
Machine parked on level ground (TM 5-3805-291-
10)
Work tool lowered to ground (TM 5-3805-291-10)
Parking brake engaged (TM 5-3805-291-10)
WP 0133 00
Wheels chocked
WP 0218 00
N OT E
For a better understanding of each system, review the appropriate section in Theory of Operation (WP 0003
00).
CALIBRATION
0017 00
Conditions That Require Recalibrating
The implement electronic control system must be calibrated in order to obtain optimum performance. The procedure consists
of the calibration procedure for the lift lever position sensors and the calibration procedure for the valve. The calibration pro-
cedure must be followed in order.
The implement electronic control system must be calibrated when the following conditions exist:
1.
A new machine is received without a work tool and a work tool is installed.
2.
A work tool is exchanged and the operator notices a different "feel". This indicates an unacceptable change in hydraulic
modulation.
If the machine requires frequent changing of the implement, calibration should be performed with the implement that is
used most frequently. This calibration should be used with all other implements.
3.
The configuration of the lift arm has changed.
4.
Electronic components and hydraulic components are replaced or components are adjusted. This includes the following
examples:
a.
Replacing the ECM
b.
Replacing or changing positions of the electro-hydraulic system's valves
c.
Replacing or changing positions of the solenoid valves
d.
Replacing a linkage position sensor
e.
Replacing a control lever
f.
Changing the position of a lever or changing the position of a linkage position sensor
g.
Replacing all of the main implement valve
h.
Replacing part of the main implement valve
5.
Attachments have been added. The attachments increase the weight of the system: additional side plates, cutting edges,
and liners.
N OT E
The implement electronic control system does not need to be calibrated when the same work tool is
removed and installed.
