11
Servicing the Tool
Use only Enerpac
®
HF hydraulic oil – the use of any other oil may cause the placing tool and pump to malfunction and
will render the placing tool warranty null and void. Hydraulic oil is available to order under the following part numbers.
HYDRAULIC OIL
PART NUMBER
07992-00081
07992-00082
07992-00083
Enerpac
®
Part Number
HF-95X
HF-95Y
HF-95T
Volume
1 Litre
5 Litres
20 Litres
Viscosity
32 mm
2
/s
32 mm
2
/s
32 mm
2
/s
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
10
and
11
and the electrical Control Cable
14
between the placing tool and the
Hydraulic Hose Assembly.
Remove the nose assembly from the placing tool as per the instructions in the nose assembly datasheet.
For a complete service of the tool, we advise that you proceed with dismantling the tool in the order shown on pages 11
to 14. After dismantling the tool we recommend that you replace all seals.
All numbers in bold refer to the General Assembly and Parts List on pages 15, 16 and 17.
Head Piston Assembly:
Using a small flat screwdriver, remove the Pin
41
from the Collet Adapter
40
.
Unscrew and remove the Collet Adapter
40
from the Piston
1
.
Remove the Deflector
3
, from the End Cap
17
.
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
17
.
Using a 24 mm A/F spanner, unscrew and remove the End Cap
17
, from the Body
2
.
Using a small flat screwdriver, remove O-Ring
21
from the End Cap
17
and discard.
Connect the spare *Quick Coupler - Male to the Quick Coupler – Female
11
on the Hydraulic Hose - Return
18
.
This will release pressure from the return side of the Piston and ease the removal of the Rear Seal Gland
16
.
Insert three M4 screws into the Rear Seal Gland
16
, and use them to pull the part off the rear shaft of the
Piston
1
and out of the Body
2
.
Using a small flat screwdriver or similar tool, remove O-Ring
30
and Spiral Back-up Ring
36
, 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
28
and Wiper Seal
31
, 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.
All numbers in
bold
refer to the General Assembly and Parts List on pages 15, 16 and 17.
*
Service Kit on page 10
