Hydraulic Oil; Dismantling Instructions - Stanley 734 AV Series Instruction And Service Manual

ENGLISH

5.6 HYDRAULIC OIL

CAUTION – Use only Enerpac
malfunction and will render the placing tool warranty null and void.
Hydraulic oil is available to order under the following part numbers.
PART NUMBER
Enerpac® Part Number
Volume
Viscosity

5.7 DISMANTLING INSTRUCTIONS

IMPORTANT – ENSURE THE MAINS POWER SUPPLY TO THE HYDRAULIC PUMP UNIT IS SWITCHED OFF BEFORE
REMOVING THE NOSE ASSEMBLY OR DISMANTLING THE PLACING TOOL.
Before Dismantling:
Uncouple the Quick Couplers 9 and 10 and the electrical Control Cable 14 between the placing tool and the Hy-
draulic Hose Assembly.
Remove the nose assembly from the placing tool as per the instructions in the relevant nose assembly datasheet.
The potentially dangerous substances that could have deposited on the machine as a result of work processes
must be removed before maintenance.
For a complete service of the tool, we advise that you proceed with dismantling the tool in the order shown on pages
14 to 17. After dismantling the tool we recommend that you replace all seals.
Head Piston Assembly:
Remove the Defl ector 3, from the End Cap 15.
Clamp the tool handle in a vice with soft jaws so that the tool is pointing nose down. Insert the dowel pins on
the *End Cap Assembly Tool into the three holes in the End Cap 15.
Using a 45 mm A/F spanner, unscrew and remove the End Cap 15, from the Body 1.
Using a small fl at screwdriver, remove O-Ring 28 from the End Cap 15 and discard.
Connect the spare *Quick Coupler – Male to the Quick Coupler – Female 10 on the Hydraulic Hose - Return 24.
This will release any pressure from the return side of the Piston 18 and ease the removal of the Rear Seal Gland
16. Note: Hydraulic oil will be expelled from the spare quick coupler – male
Insert three M4 screws into the Rear Seal Gland 16 and use them to pull the part off the rear shaft of the Piston
18 and out of the Body 1.
Using a small fl at screwdriver or similar tool, remove O-Ring 31 and Spiral Back-up Ring 30, from the external
groove on the Rear Seal Gland 16, and discard. When removing the seals, take care not to damage the surface of
the Rear Seal Gland with the screwdriver.
Remove Rod Seal 29 and Wiper Seal 33, from the internal grooves on the Rear Seal Gland 16, and discard. When
removing the seals, take care not to damage the surface of the Rear Seal Gland with the screwdriver.
Remove Rear Bearing Ring 32 and check the part for wear or damage. Discard if necessary.
Remove the placing tool from the vice and empty the hydraulic oil from the rear of the tool. Remove the spare
*Quick Coupler – Male from the Quick Coupler – Female 10 on Hydraulic Hose - Return 24.
All numbers in bold refer to the General Assembly and Parts List on pages 18, 19 and 20.
* Service Kit on page 13
Connect the spare *Quick Coupler - Female to the Quick Coupler – Male 9 on the Hydraulic Hose - Pull 25. This
® HF hydraulic oil – the use of any other oil may cause the placing tool and pump to
HYDRAULIC OIL
07992-00081
HF-95X
1 Litre
2
32 mm /s
ORIGINAL INSTRUCTION
07992-00082 07992-00083
HF-95Y
5 Litres
2
32 mm /s
HF-95T
20 Litres
2
32 mm /s
13