10.Open
gine. Record test results.
the tester flow control valve and stop the en-
CAUTION
11.
If flow is less than 5.4 GPM (20.6 LPM) on a
RM5210/5410machine,lessthan7.1GPM(27LPM)on
a RM5510/5610 machine or a pressure of 2000 PSI
(138 bar) cannot be obtained, consider that a pump
problem exists.Check forrestriction inpump intakeline.
If intake is not restricted, remove gear pump and repair
or replace pump as necessary (see Gear Pump and
Gear Pump Service in the Service and Repairs section
of this chapter).
Before opening hydraulic system, operate all hy-
draulic controls to relieve system pressure and
avoid injury from pressurized hydraulic oil. See
Relieving Hydraulic System Pressure in the Gen-
eral Information section of this chapter.
4.
Raise and prop operator seat to allow access to hy-
draulic pump.
12.After
testing is completed, make sure that engine is
5.
Identify suspected bad pump section to be tested
stopped, then relieve hydraulic system pressure (See
Relieving Hydraulic System Pressure in the General In-
formation section of this chapter). Remove tester from
machine and connect hydraulic hose to gear pump fit-
ting.
(Fig. 35). Thoroughly clean junction of gear pump fitting
and hydraulic outlet hose. Disconnect hose from pump
fitting:
Pump section (P1) for front cutting units
Pump section (P2) for rear cutting units
1
IMPORTANT: Make sure that the oil flow indicator
arrow on the flow gauge is showing that the oil will
flowfromthegearpump,through thetesterandinto
the hose.
6.
Install tester with pressure gauges and flow meter in
3
2
series between disconnected hose and gear pump fit-
ting.Make sure the flow controlvalve ontester isful-
ly open.
7.
speed. Check for any hydraulic leakage from test con-
nections and correct before proceeding with test.
After installing tester, start engine and run at idle
Figure 35
1.
2.
Gear pump
Pump P1 outlet (front)
3.
Pump P2 outlet (rear)
8.
Make sure the parking brake is engaged. Move
throttle to full speed (3200 RPM). DO NOT engage the
cutting units. Use a tachometer 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.
9.
tester flow control valve until 2000 PSI (138 bar) is ob-
While watching pressure gauges, slowly close the
tained on gauge.
FLOW TESTER READING TO BE:
For RM5210 and 5410 machines, a pump in good
condition should have a flow of approximately 6.4
GPM (24.2 LPM) at 2000 PSI (138 bar).
For RM5510 and 5610 machines, a pump in good
condition should have a flow of approximately 8.4
GPM (31.8 LPM) at 2000 PSI (138 bar).
Reelmaster 5010 Series
Page 4 -- 39
Hydraulic System
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| Language | English |
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