Displacement Limiter Adjustment - Danfoss Series 40 M46 Service Manual

Service Manual
Series 40 M46 Variable Pumps
Adjustments

Displacement limiter adjustment

© Danfoss | September 2017
6. Using a 1-1/4 in. hex wrench, install relief valve plug. Torque to 176 N•m [130 lbf•ft].
Installing the SCRs
166
1-1/4 in
176 Nm [130 ft•lb]
106
165
1103
1103
165
106
166
P106 635E
Pump may have a displacement limiter on each side of the servo. Each limiter may be adjusted to a
different setting.
1. Remove snap ring (928) and sleeve (929).
2. Using a flat screw driver to hold the displacement limiter, loosen the locking nut (927) with a 9/16 hex
wrench.
3. Rotate the displacement limiter (911) to adjust maximum displacement. Rotating the adjusting screw
clockwise decreases the maximum displacement of the pump while rotating the adjusting screw
counterclockwise increases the maximum displacement. The displacement changes approximately 4
cm³ per revolution.
4. After establishing the desired maximum displacement setting, hold displacement limiter in place
using a flat screw driver and tighten the locking nut with a 9/16 in. hex wrench. Torque to 19 N•m [14
lbf•ft]. Repeat if necessary to adjust maximum displacement in other direction.
1-1/4 in
176 Nm [130 ft•lb]
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