Procedure for Charge Pressure Test:
Make sure hydraulic oil is at normal operating tem-
HYDRAULIC MANIFOLD FROM MACHINE
WITH SERIAL NUMBER BELOW 240000000
1.
perature by operating the machine for approximately 10
minutes.
1
2
2.
hicle engine is off and that the parking brake is applied.
Park machine on a level surface. Make sure tow ve-
3.
Read and follow Precautions for Hydraulic Testing.
IMPORTANT: Make sure to thoroughly clean around
all hydraulic connections that will be disassembled.
3
FRONT
4.
Locate and remove plug from the P2 port on the hy-
draulic control manifold (Figs. 14 and 15).
Figure 14
5.
Connect pressure gauge with a hydraulic hose at-
1.
2.
Hydraulic manifold
P2 port
3. Charge relief valve R2
tached to the P2 port on the hydraulic control manifold.
Make sure hose is long enough so the operator can read
the gauge while driving the tow vehicle.
HYDRAULIC MANIFOLD FROM MACHINE
WITH SERIAL NUMBER ABOVE 240000000
6.
Start engine on tow vehicle and tow the Topdresser
at a minimum of 3 MPH. Leave the Topdresser control
handle switch in the OFF position.
1
7.
sure and should read at least 50 PSI (3.4 bar). Record
The pressure gauge will display system charge pres-
test results.
8.
Stop tow vehicle, shut off engine and record test re-
sults.
9.
If charge pressure specification is not met, inspect,
repair or replace charge relief valve (R2) in hydraulic
control manifold. Also, consider a clogged oil filter, air in
the hydraulic system or a worn charge motor/pump.
FRONT
2
3
Figure 15
3.
10.Remove
and install plug into manifold port P2. Torque plug 19 ft–
lb (25.7 N–m).
pressure gauge from hydraulic manifold
1.
2.
Hydraulic manifold
P2 port
Charge relief valve R2
11.
After testing is completed, make sure hydraulic tank
is full.
Topdresser 1800 & 2500
Page 3 – 21
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
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| Document Type | Catalog |
| Language | English |
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