Pressure Limiter Settings (continued)
Pressure limiter setting
HPRV setting
400
450
410
420
430
480
440
450
460
510
470
480
Engaging the Bypass Function
Use this procedure to bypass the pump to allow moving the vehicle/machine short distances when you
cannot start the prime mover.
C
Caution
It is possible to damage the drive motor(s) by operating in bypass mode without charge pressure. Move
the vehicle/machine at a speed not more than 20% of maximum for a duration not exceeding 3 minutes.
1. To open the HPRVs (L150), rotate three revolutions counterclockwise. Do not rotate more than 3
revolutions, leakage will result.
2. To close the HPRVs, rotate them clockwise until seated. See table above for torque values.
3. If machine is towable with HPRVs opened three turns and if wheels are locked (not towable) with
HPRV valves closed, bypass function is working correctly.
Engaging the Bypass Function
L150
P106 649E
HPRV Wrench Size and Torque Values
Displacement
Wrench size and torque
069/078/089/100
22 mm - 70 N•m [52 lbf-ft]
115/130/147/165/210/250
30 mm - 110 N•m [81 lbf-ft]
Service Manual
H1 Pumps 069/078, 089/100, 115/130, 147/165, 210/250
Adjustments
34 |
©
Danfoss | May 2018
520L0848 | AX00000087en-US0308
