Multi Pro 5700 - Toro
Multi Pro 5700 - Toro
Multi Pro 5700 - Toro
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Steering Circuit Relief Pressure Test<br />
1. Make sure hydraulic oil is at normal operating temperature<br />
by operating the machine for approximately 10<br />
minutes. Make sure the hydraulic tank is full.<br />
2. Park machine on a level surface, stop engine, engage<br />
parking brake, and remove key from the ignition<br />
switch. After turning engine off, operate all hydraulic<br />
controls to relieve hydraulic system pressure.<br />
CAUTION<br />
Prevent personal injury and/or damage to equipment.<br />
Read all WARNINGS, CAUTIONS, and Precautions<br />
for Hydraulic Testing at the beginning<br />
of this section.<br />
3. Clean hose fitting and disconnect lower pressure<br />
hose from the left side of the gear pump (Fig. 17).<br />
1<br />
Figure 17<br />
1. Steering circuit pressure hose<br />
2. Spray motor circuit pressure hose<br />
2<br />
4. Install T–connector with 5,000 PSI pressure gauge<br />
in series with the pump and the disconnected hose.<br />
5. After installing pressure gauge, start engine and run<br />
at idle speed. Check for hydraulic leakage and correct<br />
before proceeding with test.<br />
2<br />
6. Start engine and adjust engine speed to high idle<br />
(3050 – 3150 RPM).<br />
IMPORTANT: Hold steering wheel at full lock only<br />
long enough to get a system pressure reading.<br />
Holding the steering wheel against the stop for an<br />
extended period will damage the steering motor.<br />
7. Watch pressure gauge carefully while turning the<br />
steering wheel completely in one direction (full steering<br />
lock) and holding momentarily.<br />
1<br />
Figure 18<br />
1. Steering relief valve 2. Gear pump suction hose<br />
8. System pressure should be approximately 1000 PSI<br />
as the relief valve lifts. Return steering wheel to the center<br />
position.<br />
9. Slow engine speed and turn off machine. Record test<br />
results.<br />
10.If relief pressure is incorrect, inspect for worn, stuck,<br />
or out of adjustment relief valve. Steering relief valve is<br />
located under the suction hose on the right side of the<br />
gear pump (Fig. 18). For adjustment procedure, see Adjust<br />
Relief Valve in the Adjustments section of this Chapter.<br />
After adjustment, retest relief valve pressure.<br />
11. Disconnect T–connector and pressure gauge from<br />
gear pump and hose. Reconnect hose to the pump.<br />
Hydraulic System Page 4 – 20 <strong>Multi</strong> <strong>Pro</strong> <strong>5700</strong>–D