Checking transmission oil pressure, Checking charge pump pressure, Danger – MacDon M205 Operators Manual User Manual

Page 407

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MAINTENANCE AND SERVICING

Checking Transmission Oil Pressure

IMPORTANT:
Rated charge pressure MUST be maintained under all conditions of operation to prevent damage to
the transmission.

If the TRANS OIL PRESSURE warning is displayed, shut down engine, and proceed as follows:

1. Check the hydraulic fluid level in the tank. Refer to

Checking and Filling Hydraulic Oil, page 383

.

2. Check the hoses and lines for leakage.

3. Check the charge pressure relief valve. Refer to

Checking Charge Pump Pressure, page 391

.

4. If charge pressure still cannot be maintained, do NOT operate the windrower. Contact your MacDon Dealer.

Checking Charge Pump Pressure

DANGER

Stop engine and remove key from ignition before leaving operator's seat for any reason. A child or even a
pet could engage an idling machine.

Incorrect charge pressure settings may result in the inability to build required system pressure and/or inadequate
loop flushing flows.

Correct charge pressure MUST be maintained under all conditions to maintain pump control performance and to
operate the brake release.

Check charge pump pressure as follows:

1. Open hood fully. Refer to

5.4.3 Opening Hood (Highest

Position), page 289

.

2. Attach a 0–600 psi (4000 kPa) pressure gauge to a

hose that is long enough to allow pressure gauge to be
read from the operator’s seat.

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391

Revision A

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