Jacobsen SLF 1880, Technical/Repair Manual

Page: 151 / 236

8G-49
TRACTION PUMP FLOW TEST
1. Set up flow meter for a “T” test to minimize flow
meter test connections while testing the traction
circuit. (Figure 8G-5).
Figure 8G-5. Traction Pump Flow Test - “T” Test Connection
2. Disconnect seat switch and remove seat & seat
mounting plate.
3. On the right side of the traction pump, disconnect
the upper and lower traction lines.
4. Disconnect and remove the traction lines from the
hydraulic lines behind the front axle.
5. Connect the flow meter hoses to the traction pump
ports and traction lines as shown in (Figure 8G-5).
6. To perform traction pump flow test, install blocking
disc on test meter hoses connected to the “T” fit-
tings on lines going to the front wheel motors
behind the front axle (Figure 8G-5).
In
Out
Blocking
Disc
Traction Pump Flow Test
Top Hydro Port
“Reverse”
Bottom Hydro Port
“Forward”
Top Hydraulic Line
“Reverse”
Bottom Hydraulic Line
“Forward”
NOTICE
It is important that all hydraulic system components
are absolutely clean, as contamination can result in
serious damage and/or improper operation. Always
clean plugs, hydraulic lines, and hose connections
when performing diagnostic tests.
NOTICE
Follow the instructions carefully and completely.
Plug lines and cap ports as directed.