HYDAC SB 600 - Manual

Accumulators
INNOVATIVE FLUID POWER 23
PN#02073469 / 07.14 / ACU1102-1326
SB 210 / 600
Bladder Accumulators
Service and Parts
Index
1. General
Bottom Repairable Bladder Accumulators
2.
Spare Parts List
2.1 Torque Requirements
3.
Maintenance Instructions
3.1 Disassembly
3.2 Inspection Of Components
3.3 Assembly
Top Repairable Bladder Accumulators
4
Spare Parts List
4.1 Torque Requirements
5
Maintenance Instructions
5.1 Disassembly
5.2 Inspection Of Components
5.3 Assembly
WARNING!
Hydraulic accumulators are pressurized vessels and only qualified
technicians should perform repairs. Never weld, braze or perform
any type of mechanical work on the accumulator shell. Always drain
the fluid completely from the accumulator before performing any
work, such as recommended repairs or connecting pressure gauges.
Special Tools Required:
1. HYDAC Charging and Gauging Unit:
• For bottom repairable bladder accumulators:
FPS or FPK with adapter FPK/SB may be used.
• For top repairable bladder accumulators only the FPK
with adapter FPK/SB may be used.
2. Gas Valve Core Tool
3. Spanner Wrench(es)
4. Bladder Pull Rod
5. Sockets 27mm / 32mm
(top repairable only) / 36 mm
6. Blunt Flathead Screwdriver (with rounded edges)
NOTE: Additional standard tools are required including but not
limited to: Soft Faced Hammer / Sockets / Torque Wrenches /
anti seize compound for stainless steel assemblies.
Refer to additional information contained in the “Operating and
Installation Instructions for HYDAC Accumulators”.
The instructions included in this brochure cover Bottom Repairable
and Top Repairable Bladder Accumulators.
Before servicing a bladder accumulator obtain the appropriate
HYDAC repair kit. Use only original HYDAC replacement parts.
Read all instructions thoroughly before beginning any type of service
or repair work.
NOTE: All details subject to technical modification
To safeguard against a potential source of danger which can occur
in bladder and diaphragm accumulators, we would like to draw your
attention to the following information.
Please note that this should be taken into account when carrying out
any work on systems with hydraulic accumulators.
PRESSURIZED VESSEL USE DRY
NITROGEN GAS ONLY
Please refer to HYDAC Operating
and Installation Instructions
CAUTION!
After discharging and/or completely
draining the accumulator (e.g. to
depressurize the hydraulic system before
work is carried out), the accumulator can
build-up an amount of pressure again when
the lines are later shut off on the fluid side.
This problem must be taken into account
generally and in particular before carrying
out work on hydraulic systems which
include connected hydraulic accumulators.
All the fluid-side lines connected
to the accumulator must therefore
be depressurized and after that the
lines remain open. Only then may the
appropriate work (e.g. disassembly of the
accumulator) be carried out.
CAUTION!