Tensor Sonico

Accumulators
SB 330 / 600
Service and Parts
WARNING! Index
1. General Bottom Repairable Bladder Accumulators 2. 2.1 3. 3.1 Spare Parts List Torque Requirements Maintenance Instructions Disassembly 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 drainthe 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 Refer to additional information contained in the “Operating and Installation Instructions for HYDAC Accumulators” as well as AccumulatorCatalog #02068195. 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.

Bladder Accumulators

3.2 Inspection Of Components 3.3 AssemblyTop Repairable Bladder Accumulators 4 4.1 5 5.1 Spare Parts List Torque Requirements Maintenance Instructions Disassembly

5.2 Inspection Of Components 5.3 Assembly 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 whencarrying out any work on systems with hydraulic accumulators. After discharging and/or completely draining the accumulator (e.g. to depressurise 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 onhydraulic systems which include connected hydraulic accumulators. All the fluid-side lines connected to the accumulator must therefore be depressurised and after that the lines remain open.Only then may the appropriate work (e.g. disassembly of the accumulator) be carried out.

CAUTION!

PRESSURIZED VESSEL USE DRY NITROGEN GAS ONLY
Please refer to HYDAC Operating and Installation InstructionsCAUTION!

NOTE: All details subject to technical modification

Maintenance

66

Maintenance
2. Replacement Parts Drawing: SB330, SB330H, SB330N, SB600, SB600N
Detail Z 3 4 6 8
Detail Z Item 1 2 4 6 7 8 9 14 15 16 Description: Shell Bladder Gas Valve Core Bladder Stem Lock Nut Valve Seal Cap Valve Protection Cap O-ring Name Plate Fluid Port Anti-extrusion Ring Flat Ring O-ring SpacerRing Fluid Port Lock Nut Fluid Port Vent Screw Seal Ring

5 3 7

15 3 16 17 5

1

2

17 18 19 20

15 23 Back-up Ring 16 23 Repair Kit Consists Of:
Detail Z 3 4 3 4 1 6 Detail Z 6 8 8
Detail X SB 330: size 1 to 54 SB 600: size 1 to 4 SB 330N: size 1 to 54 15

17

2 3 4 5 7 15 16 23

Bladder Gas Valve Core Fluid Port Lock Nut
(SB 600 only)

16 17 15 16

Valve Seal Cap O-RingFlat Ring O-Ring Back-up Ring
(where applicable)

14 Detail X 1 18 2
2

9 17 20 19
SB 600: size 10 to 54 SB 600N: size 10 to 54

17

15 16 23 15 17 16 23 17

2.1 Torque Requirements: Bottom Repairable Bladder Accumulators in Nm (lb-ft)
Part Name Gas Valve Core Bladder Stem Lock Nut Valve14 Cap Seal 18 Fluid Port Lock Nut Vent Screw1)

14

1 0.5 (0.4) 80 (59) 30 (22) 90 (66) 4...