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Permanent Gauging Blocks

Installation Instructions

DESCRIPTION

The HYDAC Permanent Gauging

Block is designed to fit the

following types of HYDAC

accumulators: bladder, diaphragm

(with HYDAC gas valve version 4,)

and piston (with HYDAC gas valve

version 4.)

GENERAL

WARNING!

Before performing any maintenance

always relieve the gas and fluid

pressures completely from the

accumulator. 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 cylinder.

SPECIAL TOOLS REQUIRED

1) Charging and Gauging Unit

2) Gas Valve Core Tool

3) 50 mm Open End Wrench (for

bottom repairable accumulator)

4) 32 mm Open End Wrench (for

top repairable accumulator)

5) Torque Wrench(es)

Currently the HYDAC Permanent

Gauging Block is only available for

use with HYDAC gas valve version 4.

Read all instructions thoroughly

before beginning any type of

service or repair work.

Refer to additional information

contained in the "Operating and

Installation Instructions for HYDAC

Accumulators."

1) for HYDAC gas valve version 4

use either the FPS Charging and

Gauging Unit or the FPK Charging

and Gauging Unit with adapter

FPK/SB.

CAUTION

GAS CHARGING

PRESSURIZED VESSEL -

USE DRY NITROGEN GAS ONLY!

Summary of content (8 pages)

PAGE 1
Permanent Gauging Blocks Installation Instructions DESCRIPTION The HYDAC Permanent Gauging Block is designed to fit the following types of HYDAC accumulators: bladder, diaphragm (with HYDAC gas valve version 4,) and piston (with HYDAC gas valve version 4.) GENERAL WARNING! Before performing any maintenance always relieve the gas and fluid pressures completely from the accumulator. Hydraulic accumulators are pressurized vessels and only qualified technicians should perform repairs.
PAGE 2
1.DISASSEMBLY A) Relieve the fluid side pressure completely from the accumulator. Unscrew valve protection cap (item 6 if applicable) and valve seal cap (item 5). For bottom repairable bladder accumulators with 7/8"-14 UNF gas valve proceed to step 1.B. For top repairable bladder, bottom repairable bladder with M50x1.5 gas valve, diaphragm, and piston type accumulators proceed to step 1.C.
PAGE 3
2.ASSEMBLY A) Before attaching the HYDAC Permanent Gauging Block, be certain the o-ring (11x2) in the base of the block is properly seated. For diaphragm, piston, bottom repairable bladder with M50 gas valve, and top repairable bladder accumulators proceed to step 2.B. For bottom repairable bladder accumulator with 7/8"-14 UNF gas valve proceed to step 2.C. B) For top repairable bladder accumulators, first screw on the modified valve protection cap (item 6A).
PAGE 4
Bottom Repairable Bladder Accumulators HYDAC Gas Valve Version 4 - Assembly View Item 3 4 5 6 7 8 Description Gas Valve Core Lock Nut Valve Seal Cap Valve Protection Cap O-RING (7.
PAGE 5
Top Repairable Bladder Accumulators HYDAC Gas Valve Version 4 - Assembly View Item 3 4 5 6 6A 7 Description Gas Valve Core Lock Nut Valve Seal Cap Valve Protection Cap Valve Protection Cap (modified) Name Plate Permanent Gauging Block - Assembly View 5
PAGE 6
Diaphragm and Piston Accumulators HYDAC Gas Valve Version 4 - Assembly View Item 3 5 7 Description Gas Valve Core Valve Seal Cap O-RING (7.
PAGE 7
Bottom Repairable Bladder Accumulators with M50 Gas Valve HYDAC Gas Valve Version 4 - Assembly View Item 3 4 5 6 7 8 Description Gas Valve Core Lock Nut Valve Seal Cap Valve Protection Cap O-RING (7.
PAGE 8
Other Products from HYDAC’s Accumulator Line Bladder Accumulators The bladder style accumulator is a great general purpose accumulator. It has a wide range of sizes for energy storage requirements and is well suited for shock applications. Nominal volume: 1 qt. to 15 gal. Max.