Toro Reelmaster 5510 Series, Service Manual

Page: 194 / 662

Test Procedure (continued)
8. After installing tester, start engine, and run at idle speed. Check for any
hydraulic leakage from test connections and correct before proceeding with
test.
9. Increase engine speed to high idle speed.
CAUTION
Keep away from reels during test to prevent personal injury from
rotating reel blades.
10. Have a second person occupy seat, press reel engage switch to O
N
, and
then move lower-mow/raise lever forward to engage cutting units.
IMPORTANT
When performing this test, do not hold over relief any longer than
necessary to obtain pressure reading.
11. Watch pressure gauge carefully while slowly closing the tester flow control
valve.
12. As the relief valve lifts, system pressure should be:
From 16,900 to 17,900 kPa (2,450 to 2,600 psi) for relief valve (R1)
From 23,800 to 24,800 kPa (3,450 to 3,600 psi) for relief valve (R2)
13. Open the tester flow control valve, disengage cutting units, and shut off the
engine.
14. If pressure is incorrect, remove solenoid valve on mow manifold and
clean or replace valve; refer to Servicing the Mow Control Manifold
Assembly (page 6–191) . Also, if pressure is still low after solenoid valve
service, check for restriction in pump intake line. Gear pump (P2) (front
cutting unit circuit) and/or pump (P1) (rear cutting unit circuit) could also
be suspected of wear, damage, or inefficiency; refer to
Gear Pump (P1)
and (P2) Flow Test (Using Tester with Flow Meter and Pressure Gauge)
(5410/5410-G/5410-D/5510/5510-G/5510-D/5610) (page 6–77)
.
15. After testing is completed, ensure that the engine is stopped, then relieve
hydraulic system pressure; refer to Releasing Pressure from the Hydraulic
System (page 6–8) . Remove tester from machine and connect hydraulic
hose to reel motor fitting.
Hydraulic System: Testing the Hydraulic System Page 6–76 Reelmaster ® 5410/5510/5610 Series
15216SL Rev C