DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
Hydraulic pump - Flow test (A.10.A.20 - F.40.A.45)
435, 445, 445CT
WARNING
CSM118 - Two persons are required to perform the
fl
owmeter tests for safety to avoid possible injury. One
person must be seated in the operators seat with the Seat Bar down when the engine is running. The
second person is to control the
fl
owmeter and take the readings.
1.
Park the machine on a level surface. Lower the
loader bucket to the
fl
oor. Stop the engine.
2.
Disconnect the hose from the pump pressure port
at Test Point 1 . Install a plug in the hose. Connect
the
fl
owmeter inlet hose to the
fi
tting at the pressure
port of the pump.
3.
Put the
fl
owmeter outlet hose into the hydraulic
reservoir. Use wire to fasten the
fl
owmeter outlet
hose below the surface of the hydraulic oil.
4.
Make sure that the oil level in the hydraulic reservoir
is correct.
5.
Make sure that the pressure valve of the
fl
owmeter
is opened completely.
6.
The oil must be at operating temperature. If the
oil is not at operating temperature, run the engine
at full throttle and close the pressure valve of the
fl
owmeter until the pressure gauge indicates 103 bar
(1500 psi). Continue to run the engine at full throttle
until the temperature of the oil is 52°C (125°F). Then
open the pressure valve completely.
7.
Make sure that the pressure valve is opened
completely. Adjust the engine speed to 2300 r/min
(rpm) and read the
fl
ow gauge. Read the
fl
ow and
record the reading as test number 1 .
8.
Slowly close the pressure valve on the
fl
owmeter
until the pressure gauge indicates 97 bar (1400 psi).
Keep the engine running at 2300 r/min (rpm). Read
the
fl
ow and record the reading as test number 2 .
9.
Slowly close the pressure valve on the
fl
owmeter
until the pressure gauge indicates 124 bar (1800
psi). Keep the engine running at 2300 r/min (rpm).
Read the
fl
ow and record the reading as test
number 3.
10.
Slowly close the pressure valve on the
fl
owmeter
until the pressure gauge indicates 152 bar (2000
psi). Keep the engine running at 2300 r/min (rpm).
Read the
fl
ow and record the reading as test
number 4.
11.
Open the pressure valve completely. Decrease the
engine speed to low idle and stop the engine.
NOTE:
Understanding the results of the tests are outlined
in the steps below.
1 04/05/2005
A.10.A / 30
Summary of Contents for 435
Page 1: ...REPAIR MANUAL 435 445CT 445 6 75491 1 04 05 2005 ...
Page 3: ...INTRODUCTION 6 75491 1 04 05 2005 1 ...
Page 15: ...INTRODUCTION bs04e020_1 4 6 75491 1 04 05 2005 13 ...
Page 16: ...INTRODUCTION bs04e021_1 5 6 75491 1 04 05 2005 14 ...
Page 19: ...REPAIR MANUAL DISTRIBUTION SYSTEMS 435 445CT 445 39702 1 04 05 2005 A ...
Page 86: ...39703 1 04 05 2005 A 10 A 66 ...
Page 104: ...39704 1 04 05 2005 A 12 A 18 ...
Page 126: ...39705 1 04 05 2005 A 16 A 22 ...
Page 127: ...DISTRIBUTION SYSTEMS A ELECTRICAL POWER SYSTEM 30 A 435 445CT 445 39706 1 04 05 2005 A 30 A 1 ...
Page 237: ...DISTRIBUTION SYSTEMS A LIGHTING SYSTEM 40 A 435 445CT 445 39707 1 04 05 2005 A 40 A 1 ...