Bosch rexroth A2FO Series User Manual

BoschRexrothAG, RE91405-01-B/2021-05-21
48/52 A2FO series 70 | Troubleshooting
14�2 Malfunction table
Table 13: Axial piston unit malfunction table
Malfunction Possible cause Remedy
Unusual noises Insufficient air bleeding of the hydraulic system Fill the axial piston unit, suction line for the
hydraulic pump and the reservoir
Completely air bleed the axial piston unit and
hydraulic system
Check correct installation position
Insufficient suction conditions, e.g.insufficient
dimensioning of the suction line, viscosity of
the hydraulic fluid too high, suction height too
high, suction pressure too low, foreign particles
in the suction line, impermissible filter in the
suction line
Machine/system manufacturer: Check the
system, e.g.optimize inlet conditions,
use suitablehydraulic fluid
Fill the suction line with hydraulic fluid
Remove foreign particles from the suction line
Drive speed too high Machine/system manufacturer:
Reduce drive speed
Wrong direction of rotation Machine/system manufacturer: Check correct
direction of rotation, seechapter7.4.1
"Preparation" on page28
Improper mounting of the axial piston unit Check the mounting of the axial piston
unit according to the specifications of the
machine/system manufacturer – observe
tightening torques
Improper mounting of assembled parts,
hydraulic lines or improper installation of
the coupling
Fasten assembled parts according to the
parameters provided by the coupling fitting
manufacturer
Resonances due to a defective or unsuitable
elastic coupling
Check the specification of the elastic coupling
and/or exchange defective or worn coupling
Mechanical damage to the axial piston unit
(e.g.bearing damage)
Replace axial piston unit
Contact BoschRexrothService
Increased, unusual vibration Bearings worn Contact BoschRexrothService
No or insufficient flow Insufficient air bleeding of the hydraulic system Fill the axial piston unit, suction line for the
hydraulic pump and the reservoir
Completely air bleed the axial piston unit and
hydraulic system
Faulty mechanical drive (e.g.defective coupling) Contact machine/system manufacturer
Drive speed too low Contact machine/system manufacturer
Insufficient suction conditions, e.g.insufficient
dimensioning of the suction line, viscosity of
the hydraulic fluid too high, suction height too
high, suction pressure too low, foreign particles
in the suction line, impermissible filter in the
suction line
Machine/system manufacturer: Check the
system, e.g.optimize inlet conditions,
use suitablehydraulic fluid
Fill the suction line with hydraulic fluid
Remove foreign particles from the suction line
Hydraulic fluid not in optimal viscosity range Machine/system manufacturer:
Check temperature range and use
suitableh
ydraulic fluid
Wear or mechanical damage to the
axial piston unit
Replace axial piston unit
Contact BoschRexrothService

Bosch rexroth A2FO Series Specifications

General

Brand	Bosch
Model	rexroth A2FO Series
Category	Water Pump
Language	English