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Model SPD-6
Minimum displacement limiter
Adjusting the minimum displacement limiter
1. Remove cap (N0120).
Removing cap destroys the caps locking mechanism. Replace with new cap.
2. Using a 6 mm internal hex wrench, hold adjusting screw (N0010) in place.
3. Using a 19 mm hex wrench, loosen seal locknut (N0020).
4. Turn adjusting screw clockwise to increase minimum displacement or counterclockwise to decrease
minimum displacement. Minimum displacement is inversely related to maximum shaft speed. To
increase maximum speed, decrease minimum displacement. Adjusting displacement limits also
affects output torque. Refer to table for displacement change per turn.
5. When properly adjusted, hold adjusting screw in place and torque seal locknut to 45 N•m [32 lbf•ft].
6. With motor on machine or test stand, verify correct motor function. Refer to Port locations and gauge
installation on page 29 for location of gauge ports and suggested gauge sizes.
7. Install new cap (N0120).
Minimum displacement limiter
N0020
N0120
N0010
19 mm
6 mm
45 N•m
[32 lb•ft]
Displacement change per turn
Model Displacement change
250 5.5 cm3 [0.34 in3]
160 4.1cm3 [0.25 in3]
110 3.2 cm3 [0.20 in3]
Service Manual H1B 060/080/110/160/250 Bent Axis Motors
Adjustments
11024924 • Rev CB • February 2015 37
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