Test No. 2: Traction Circuit System Pressure - Toro Reelmaster 6500–D Service Manual

TEST NO. 2: Traction Circuit System Pressure

1. Make sure hydraulic oil is at normal operating temper-
ature before doing test.
2. Drive machine to an open area, lower cutting units,
and shut off the engine.
3. Connect a 10,000 psi gauge to traction circuit test port
for function to be checked.
4. Start the engine and move throttle to full speed
(approx. 2500 RPM for 6500–D and 2750 RPM for
6700–D).
Move machine to an open area, away from
people and obstructions.
5. With brakes locked, slowly depress the traction ped-
al. While pushing traction pedal down, look at pressure
reading on gauge.
GAUGE READING: 4000 +/– 200 PSI.
6. Stop the engine.
7. If traction pressure is too low, inspect relief valves. If
problem occurs in one direction only, interchange the re-
lief valves to see if the problem changes to the other
direction. Clean or replace valves as necessary. These
cartridge type valves are factory set, and are not adjust-
able. If relief valves are in good condition, traction pump
or wheel motors should be suspected of wear and ineffi-
ciency.
Reelmaster 6500–D/6700–D
CAUTION
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2
Figure 13
1. FORWARD test port
Rev. B
1
2. REVERSE test port
Hydraulic System