Pressure Limiter
Pressure Limiter Screens
Warning
Pumps with only HPRV valves no longer contain pressure limiter (PL) screens and retainer. To convert the
pumps to use pressure limiter valves, please contact your Danfoss Service Partner. Pumps that have PL
valves without PL screens and retainers are at high risk of contamination and product malfunction.
H1P Base Models with pressure settings option B include PL screens and retainers.
Pressure Limiter Adjustment (060/068 only)
Lock motor output shaft to adjust the pressure limiter setting. Lock the vehicle’s brakes or rigidly fix the
work function so it cannot rotate.
Ensure charge pressure is properly set before checking pressure limiter.
Pressure limiter adjustment
P109551
060/068
M3
L2
1
2
3
3
(4x)
(4x)
(2x)
(2x)
AM3
MB
MC
MA
MD
Legend
Item Description Wrench size Torque Gauge size
1 Lock nut 14 mm 20 N•m [15 lb•ft] -
2 Adjusting screw 6 mm - -
3 HPRV Valve 22 mm 70 N•m [52 lb•ft] -
M3, AM3 Charge pressure
gauge port
¼ inch 43 N•m [32 lb•ft] 0 - 50 bar [0 - 1000
psi]
L2 Case drain port 5/8 inch 148 N•m [109 lb•ft] 0 - 10 bar [0 - 100 psi]
MA, MB, MC, MD System pressure
gauge ports
¼ inch 43 N•m [32 lb•ft] 0 - 600 bar [0 - 10,000
psi]
Endcaps are different for clockwise and counter clockwise rotation.
Service Manual
H1T 045/053, 060/068 Axial Piston Tandem Pumps
Adjustments
©
Danfoss | September 2020 AX152886481761en-000405 | 43
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