Jacobsen HR5111 Service And Repair Instructions page 181

Right Motor Test
NOTE
A pump, valve, center motor and left motor test
must be performed before proceeding with this
test.
32. Move wooden block to right motor blade.
33. Open tester load valve, start engine, advance throt-
tle to 2800 engine rpm.
34. Push center mower reel switch into CUT and pull
implement switch ON.
35. Slowly close tester valve until 2500 psi is obtained.
36. Read/record gpm flow. Subtract from flow obtained
in CENTER MOTOR test.
•
If flow drops 1/2 gpm or less, right motor is
okay.
•
If flow drop is 1/2–1 gpm, right motor is marginal.
•
If flow drops more than 1 gpm, right motor has
excessive internal leakage.
37. Remove tee from left motor and connect line to
motor.
Figure 8R-16. Front Center Mower Circuit Tests
8R-17
8R