Viega MegaPress Z3 Actuator User manual

For use with MegaPress 2½" to 4" press rings
Model Model Year
4898.5XL 01/2020
Instructions for Use US
Viega MegaPress Z3 Actuator

Table of Contents
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Table of Contents
1 Instructions for Use ________________________________________________________________________________________________ 4
1.1 Disclaimer __________________________________________________________________________________________________________ 4
1.2 Symbols Used ___________________________________________________________________________________________________ 4
1.3 Audience ____________________________________________________________________________________________________________ 5
1.4 Terms __________________________________________________________________________________________________________________ 5
2 Product Information ________________________________________________________________________________________________ 5
2.1 Intended Use _____________________________________________________________________________________________________ 5
2.2 Product Description _________________________________________________________________________________________ 6
2.2.1 Overview _______________________________________________________________________________________________ 6
2.2.2 Technical Data _____________________________________________________________________________________ 7
3 Handling _____________________________________________________________________________________________________________________ 7
3.1 Transport and Storage _____________________________________________________________________________________ 7
3.2 Preparing the Press Tool _________________________________________________________________________________ 8
3.3 Pressing ______________________________________________________________________________________________________________ 8
3.4 Interrupting the Press Cycle _________________________________________________________________________ 11
3.5 Troubleshooting ______________________________________________________________________________________________ 12
3.6 Care and Maintenance __________________________________________________________________________________ 13
3.6.1 Cleaning ______________________________________________________________________________________________ 13
3.7 Disposal ____________________________________________________________________________________________________________ 13

Viega MegaPress Z3 Actuator
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1 Instructions for Use
1.1 Disclaimer
Viega products are designed to be installed by licensed and trained
plumbing and mechanical professionals who are familiar with Viega
products and their installation. Installation by non-professionals may
void Viega LLC’s warranty.
This document is subject to updates. For the most current Viega
technical literature please visit www.viega.us.
1.2 Symbols Used
Within this document, the following symbols may be used:
DANGER!
This symbol warns of possible life-threatening injury.
WARNING!
This symbol warns of possible serious injury.
CAUTION!
This symbol warns of possible injury.
NOTICE!
This symbol warns of possible damage to property.
Notes give you additional helpful tips.

Product Information
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1.3 Audience
The information in this instruction manual is for the following groups:
■ Heating and plumbing professionals and trained personnel.
1.4 Terms
The following terms are used in this document:
Term Meaning
Press tool Appropriate press tool, such as:
RIDGID RP 342 XL Extended Barrel
Milwaukee M18 Force Logic Long Throw
Press rings Viega 2½" to 4" MegaPress press rings
Actuator Viega Z3 actuator
Press system:
Combination of press tool, press
rings, and Z3 actuator
Viega press tool system
2 Product Information
2.1 Intended Use
The Viega Z3 actuator is designed to work with an appropriate press tool (see
below) with 32 kN press force and 80 mm press stroke. The press tool, the Viega
MegaPress 2½" to 4" press rings system, and the Viega Z3 actuator, constitutes
a full-featured press tool system. With the press tool system, it is possible to
press MegaPress 2½" to 4" 󶈵ttings.
Appropriate system press tools:
■ RIDGID RP 342 XL Extended Barrel
■ Milwaukee M18™ Force Logic™ Long Throw (Milwaukee Cat. No. 2773-20L)
Suitable system press rings:
■ Press rings for MegaPress 2½" to 4"
To avoid confusion between Viega press rings and other Viega
pressing systems, the actuator and the MegaPress 2½" to 4" press
rings are marked “Z3”.

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2.2 Product Description
2.2.1 Overview


1 Z3 ball heads
2 Handle (detachable)
System Scope
The MegaPress 2½" to 4" tool system consists of the following components:
Tool Sets
Viega Z3 actuator and 2½ inch press ring in case
Viega 3+4 inch MegaPress press ring in case
Single Components
Viega Z3 actuator
Viega 2½ inch MegaPress press ring
Viega 3 inch MegaPress press ring
Viega 4 inch MegaPress press ring

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2.2.2 Technical Data
The product has the following technical data (approximate values):
Item Value
Drive [external] See “Appropriate system press tool”
under Section 2.1 on page 5
Operating temperature Based on the press tool used
Dimensions [L x W x H] Approximately 10 x 8 x 2 inch
Weight of Viega Z3 actuator Approximately 13 lbs.
Weight of 2½ inch / 73 mm press ring Approximately 6 lbs.
Weight of 3 inch / 88.9 mm press ring Approximately 7 lbs.
Weight of 4 inch / 114.3 mm press ring Approximately 10 lbs.
3 Handling
Warning and Mandatory Signs
Note the warning and mandatory signs on the Viega Z3 actuator:
General warning sign
Comply with all instructions marked with this symbol to avoid
injuries or danger to life.
3.1 Transport and Storage
Protect the Viega Z3 actuator from the following external in󶈶uences:
■ Shocks
■ Wetness and moisture
■ Dust and dirt
■ Frost and extreme heat
■ Chemical solutions and vapors
Clean the Viega Z3 actuator and the press rings if there will be long idle times or
for storage. See Section 3.6.1 “Cleaning” on page 13.
Store the Viega Z3 actuator and press rings only in the original case.

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3.2 Preparing the Press Tool
Placing the Viega Z3 Actuator On the Press Tool
▶ On the press tool, rotate the retaining pin
handle 180 degrees and pull it out to
open the slot for the actuator.
▶ Insert the Viega Z3 actuator into the slot
on the press tool.
▶ On the press tool, push the retaining pin
back in and rotate it 180 degrees.
NOTE! The handle on the actuator can
be removed if necessary.
3.3 Pressing
Caution!
Risk of crushing
Risk of getting your 󶈵ngers and hands crushed.
■ Hold the press tool with both hands on the handle area during
pressing.
Note!
Property damage due to defective press ring
Using a defective, incorrectly sized, or worn press ring may result in an
incorrect press.
■ Before using the press rings, check them for visible defects.
■ Only use defect-free press rings of a suitable size.
Follow the instruction for use for the press tool and the MegaPress 2½"
to 4" piping system you are using.

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Requirements:
■ The dimension of the press 󶈵tting must match the dimension of the press ring.
▶ Open the press ring and place it around
the pressing point on the press 󶈵tting.
▶ Open the Viega Z3 actuator.
▶ Place the open Viega Z3 actuator onto the
press ring by inserting the ball heads of
the actuator into the contact points of the
press ring.

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NOTE! Before initiating a press make
sure the ball heads sit correctly in the
contact points of the press ring.
▶ Close the Z3 actuator.
▶ Hold the press tool and handle of the Z3
actuator securely.
▶ Start the pressing process by holding the
press tool trigger until the actuator has
engaged the press ring.
▷ When the press cycle is complete, the
actuator will stop and release. The
MegaPress press 󶈵tting will have been
pressed to the pipe.

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▶ Once the press is complete, open the Z3
actuator and take the actuator o󶈴 the
press ring.
▶ Remove the press ring from the 󶈵tting.
3.4 Interrupting the Press Cycle
Take the Viega Z3 Actuator O󶈴 the Press Ring
In the event that the current press cycle must be interrupted, you can manually
loosen the press tool from the press ring.
▶ Press the black manual release button on the handle of the press tool until the
piston has fully retracted and the actuator is no longer stress loaded (see the
manual for the press tool used).
▶ Open the Z3 actuator .
Continuing an Interrupted Press Cycle
Interrupted presses of MegaPress 2½" to 4" press 󶈵ttings can be restarted. This
should only be done in extenuating circumstances where the press ring was
manually loosened.
Before and during the press stroke of the resumed pressing, note that
the empty stroke is longer and in particular note the following:
■ The ball heads of the hinged actuator must lie correctly in the contact
points of the press ring.
■ The press ring must be correctly seated and lay 󶈶ush on the press 󶈵tting.

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Requirements:
■ The press 󶈵tting and the press tool are not damaged.


90°
▶ Attach the press ring to the press 󶈵tting
once more.
▶ Complete the press using the press tool.
When completing an interrupted press, it is not necessary to place the press
ring in exactly the same position on the press 󶈵tting as during the aborted
pressing provided the axial positioning of the press ring on the 󶈵tting is
correct and the press ring sits at a right angle to the pipeline axis.
3.5 Troubleshooting
In case of malfunction, check for the following potential causes:
Malfunction Cause Remedy
The Z3
actuator is sti󶈴. The Z3 a ctuator is
dirty.
Clean the Z3 actuator , see
“3.6.1 Cleaning” below.
Cannot open the Z3
actuator wide enough to
apply it to the open press
ring (unpressed 󶈵tting).
The press tool was
unable to return to
the starting position.
Reset the press tool manually.
The Z3
actuator doesn’t
attach correctly to the
press tool.
The press tool is
incompatible or
defective.
Use a di󶈴erent press tool, see
“Appropriate system press
tool” under Section 2.1 on
page 5.

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3.6 Care and Maintenance
3.6.1 Cleaning
  ▶ Use a cloth to remove any dirt or metal
residues as well as lubricant residues
from the Z3 actuator .
▶ Regularly lubricate the joints and moving
components (1) with maintenance oil.
▶ Regularly lubricate the ball heads (2) with
a small amount of MOLYKOTE™ G-N Plus
Paste to reduce wear and tear.
▶ Spray the Z3 actuator with a thin coat of
maintenance oil. Let it soak in brie󶈶y, then
wipe the part down with a lint-free cloth.
3.7 Disposal
For environmentally friendly disposal, send the Z3 a ctuator to a recycling/scrap
metal company.

IM-MP 599895 0420 MegaPress Z3 Actuator (EN)
Viega LLC
585 Interlocken Blvd.
Broomfield, CO 80021
Phone [phone]
www.viega.us