Toro Reelmaster 5010- H Service Manual page 73

3. Raise and prop operator seat to allow access to hy-
draulic pump assembly.
4. Thoroughly clean the ends of the hydraulic tubes
connected to the oil filter and piston pump inlets (Fig.
33). Disconnect hydraulic tubes from oil filter inlet and
piston pump inlet. Remove two (2) flange head screws
that secure oil filter adapter to frame. Remove oil filter
assembly and hydraulic tube from machine.
IMPORTANT: Make sure that the oil flow indicator
arrow on the flow meter is showing that the oil will
flow from the hydraulic tube, through the tester and
into the piston (traction) pump.
5. Install tester with pressure gauge and flow meter in
place of the removed oil filter assembly and hydraulic
tube (Fig. 34). Connect tester inlet hose to the hydraulic
tube. Connect the tester outlet hose to the piston (trac-
tion) pump fitting. Make sure the flow control valve on
tester is fully open.
6. Make sure that the traction pedal is in neutral, the
steering wheel is stationary and the parking brake is en-
gaged.
7. Start engine and run at idle speed. Check for any hy-
draulic leakage from test connections and correct be-
fore proceeding with test.
8. Make sure hydraulic oil is at normal operating tem-
perature by operating the machine under load for
approximately ten (10) minutes.
9. Increase engine speed to high idle speed (3000
RPM). Use InfoCenter Display to verify that engine
speed is correct.
IMPORTANT: The gear pump is a positive displace-
ment type. If pump flow is completely restricted or
stopped, damage to the pump, tester or other com-
ponents could occur.
10.While watching tester pressure gauge, slowly close
the tester flow control valve until 800 PSI (55 bar) is ob-
tained on gauge.
FLOW TESTER READING TO BE: A pump in good
condition should have a flow of approximately 4.7
GPM (17.8 LPM) at 800 PSI (55 bar).
11. Open the tester flow control valve, stop engine and
record test results.
12.If flow is less than 4 GPM (15.1 LPM) or a pressure
of 800 PSI (55 bar) cannot be obtained, consider that a
gear pump problem exists. Check for restriction in pump
intake line. If intake is not restricted, remove gear pump
and repair or replace pump as necessary (see Hydraulic
Pump Assembly and Gear Pump Service in the Service
and Repairs section of this chapter).
Reelmaster 5010- H
NOTE: If the flow from gear pump (P2) is low, the opera-
tion of both the charge circuit and the steering circuit will
be affected.
13.After testing is completed, make sure that engine is
stopped, then relieve hydraulic system pressure (See
Relieving Hydraulic System Pressure in the General In-
formation section of this chapter). Remove hydraulic
tester from hydraulic tube and pump fitting. Install oil fil-
ter assembly and then connect removed hydraulic tube
to oil filter and piston pump fitting.
14.Lower and secure operator seat.
4
1. Hydraulic tube
2. Oil filter
1. Tester inlet connection
Page 4 - 37
1
2
Figure 33
3. Hydraulic tube
4. Gear Pump (P2)
2
1
Figure 34
2. Tester outlet connection
Hydraulic System
3