Pressure Limiter
Pressure Limiter Screens
W
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