Toro Dingo TX 413 Service Manual page 198

8. Then turn the restriction valve to 1100 psi (76 bar)
(Fig. 560).
Figure 560
9. At 1100 psi (76 bar), note the gpm reading.
Example:
• 300 psi (21 bar) reading
• 1100 psi (76 bar) reading
Subtract the fi rst gpm reading from the second gpm
reading. This will determine your "fl ow droop".
Note: The acceptable gpm "fl ow droop" or
(difference) is 1.5 gpm (5.6 l/min).
If the difference exceeds these values, the hydrostatic
pump droop is not acceptable.
If the values have been met, the issue would be in the
wheel motor. Refer to Wheel Motor Removal, page
8-16.
10. Disconnect the fl ow tester and reconnect the
hydraulic lines when test is completed.
Note: Before reconnecting the hydraulic lines,
install new O-rings in the fi ttings.
TX 413 Service Manual
DSC-2942
8 gpm (30 l/min)
1st reading
6.5 gpm (24.6 l/min)
2nd reading
1.5 gpm (5.6 l/min)
(the difference)
Rev. 000
TESTING
9-13