Test No. 2: Check Counterbalance Oil Pressure - Toro Reelmaster
4000?D Service Manual

TEST NO. 2: Check Counterbalance Oil Pressure

Procedure:
1. Install a 10,000 psi gauge into the center quick dis-
connect as shown.
2. Start the engine and move throttle to full speed
(2500 rpm).
3. Tester reading should be within the range listed:
COLD OIL: 600 − 650 PSI
HOT OIL: 500 − 550 PSI
NOTE: Due to special conditions or customer prefer-
ence, the counterbalance may require setting outside
this recommended range. However, the range listed will
be adequate for most conditions.
4. If necessary, adjust the relief valve screw until the de-
sired pressure is attained. Turn the screw in to increase
counterbalance pressure and turn the screw out to de-
crease counterbalance pressure. Adjust nearer the high
end of the range for improved hill climbing or nearer the
low end for improved quality−of−cut.
Hydraulic System
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2.
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Figure 16
Counter balance test port
Relief valve adjustment screw
Reelmaster 4000−D