Manitowoc Grove TMS9000-2 Series, Руководство по обслуживанию

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Grove
Published 01-14-2021 Control # 707-01
2-61
TMS9000-2 SERVICE MANUAL HYDRAULIC SYSTEM
2
nipple at the G2 port of the outrigger selector/ A/C
manifold (Figure 2-41).
2. Start engine and idle. Turn on the A/C, listen to ensure
that the compressor motor is running or verify by
removing the cover (Figure 2-42) and looking at the
shaft. The reading at G2 should be 1000 ±150 PSI (69
±10 bar) if it is not use the service tool as follows to
adjust.
a. In the Tools->EEprom->View Parameters->Cabin-
>Solenoid PWM Control (carrier)->Pressure Sol AC
Only Target params row increase the value to
increase the pressure or decrease the value to
decrease the pressure (adjustment by 10 mA
increments is suggested). Make sure to write
column to “active settings”. Repeat this step until the
pressure is achieved. If the value needs adjusted by
more than 100 mA there may other issues in the
circuit.
b. Once the pressure is achieved make sure to “Save
active to customer” and “Save active to factory”
3. If the pressure is correct and the AC is still not working
correctly remove the cover and check the shaft speed
(Figure 2-42) with a photo tach. The shaft speed should
be 1800 to 2000 rpm when the unit is running. If the shaft
is not in this range use the service tool as follows to
adjust.
NOTE: While doing this step the gauge from Step 2 should
also be installed and if the pressure gets out of the
acceptable range Step 2 will need to be repeated
once the RPMs are increased.
a. In the Tools->EEprom->View Parameters->Cabin-
>Solenoid PWM Control (carrier)->Flow Sol A/C
Target params row increase the value to increase
the flow or decrease the value to decrease the flow
(adjustment by 10 mA increments is suggested).
Make sure to write column to “active settings”.
Repeat this step until the pressure is achieved. If the
value needs adjusted by more than 100 mA there
may be other issues in the circuit.
b. Once the flow and pressure are achieved make sure
to “Save active to customer” and “Save active to
factory”
4. Stop engine. Remove diagnostic couplers.
I. Procedure for Checking/Setting the Center
Front Stabilizer Pressure
1. With the engine off, install a pressure check diagnostic
coupler (Parker PD240) with gauge onto the diagnostic
FIGURE 2-42
9266-12
Compressor shaft
Fo
r
Reference
Only