RENINSHAW FORTiS-N User manual

Installation guide
M-9768-9492-01-A
FORTiS™ air lter assembly mounting instructions

Contents
Compressed air ltration system safety instructions 1
Installation and set-up 2
Full-size air lter dimension drawing 6
Reduced-size air lter dimension drawing 7
Maintenance 8

1
Compressed air ltration system safety instructions
WARNING: These safety instructions are intended to prevent hazardous situations and / or equipment damage.
Only personnel with appropriate training should operate machinery and equipment. The product specied here may become unsafe if handled incorrectly.
The assembly, operation and maintenance of machines or equipment, including Renishaw products, must be performed by an operator who is appropriately trained andexperienced.
Before installation, service or repair is carried out, disconnect the compressed air supply and release the pressure in the system.
Do not service or attempt to remove the product and machinery / equipment until safety is conrmed. Only inspect and maintain the machinery / equipment after taking measures to
prevent falling or runaway of the driven objects. When the product is to be removed, conrm that the safety measures as described above are implemented and the power from any
appropriate source is cut, and read and understand the specic product precautions of all relevant products carefully. Before machinery / equipment is restarted, take measures to
prevent unexpected operation and malfunction.
Install vertically so that the outlet of the drain is facing downwards. The output of the drains should be routed to a suitable container for collecting waste liquid, so it can be disposed
of safely and in accordance with local regulations.
NOTE: Avoid use with the drain outlet turned horizontally or upwards as this causes a malfunction.
Dimensions and tolerances in mm
≤ 10 bar
≤ 1 MPa

2
CAUTION: Do not drop or apply impact during transportation or installation as this can cause damage to the product.
The assembly is provided prepacked. Remove from packaging and check for transit damage and loose components. Retighten loose components. If components are damaged, contact your local Renishaw representative.
Male tting items 10, 11 and 12 are supplied individually bagged inside the carton and can be utilised in place of item 2 to suit the required outlet and inlet of installation.
NOTE: The greater the number of installed Renishaw encoders downstream of the assembly, the larger the potential volumetric air usage. Pipework should be sized to suit.
Installation and set-up
2
2
10 11 12
Dimensions and tolerances in mm

3
CAUTION: Do not drop or apply impact during transportation or installation as this can cause damage to the product.
Connect the air set ensuring the direction of “ 1 ” (IN) and “ 2 ” (OUT) for air direction. Blow out or clean piping before connecting to eliminate swarf, cutting
oil and solid foreign material, as contamination in the piping may cause damage or malfunction.
NOTE: The assembly comes complete and in normal
conditions, will not require disassembly.
Check for transit damage and loose components.
Retighten loose components. If components are
damaged, contact your local Renishaw representative.
CAUTION: Failure to follow this procedure can cause damage to the pressure regulator knob and the outlet pressure may uctuate.
Pull the pressure regulator knob to unlock. Visually verify that the knob is unlocked using the ‘orange mark’ that appears in the gap.
Rotate the pressure regulator knob clockwise to increase output pressure. Visually verify this on the attached gauge.
To reduce the output pressure, rotate the knob fully anticlockwise until the gauge reduces to zero, then increase pressure until the required level is reached.
Push the pressure regulator knob to lock. If the knob is not easily locked, turn it left and right a little and then push it. Visually verify that the knob is locked;
the ‘orange mark’ in the gap will disappear.
NOTE: The output pressure must always be less than the input pressure. If the output pressure is unattainable, check the site input pressure.
The actual pressure at the encoder may differ from the pressure set at the regulator; pressure may drop within the pipework due to distance. If the pressure
at the encoder is too low, a higher set output pressure may be required at the regulator. This also applies for air supply systems for multiple encoders, as
more usage points can reduce overall pressure.
Installation and set-up (continued)
7 bar (0.7 MPa)
(min. 4 bar / max. 10 bar)
12
12
Orange
mark
Increase
output
pressure
Decrease
output
pressure
Dimensions and tolerances in mm

4
How to adjust air pressure to allow for pressure drop in the system
When long air pipes are used, or multiple encoders are connected to one air lter assembly, the pressure at the encoder can be lower than the pressure at the regulator. To check the actual pressure at the encoder,
switch off the compressed air feed and allow the air pressure to be relieved. Remove the nearest connection to the encoder (normally a straight union) or cut into the air line near the encoder.
Fit the in-line pressure gauge assembly (A-9768-4409) in place of the straight union or where the air line has been cut.
Switch on the compressed air supply and adjust the air lter system regulator until the in-line pressure gauge assembly (A-9768-4409) shows 0.1 MPa.
NOTE: The air pressure at the regulator on the air lter assembly may be higher than 0.1 MPa. If 0.1 MPa cannot be achieved at the encoder, check the air lines for leaks.
When adjustment is completed, switch off the compressed air feed and allow the air pressure to be relieved. Remove the in-line air pressure gauge assembly (A-9768-4409) and ret the straight union. If required, a suitable
one-touch straight union (A-9768-4400) is available from Renishaw.
Installation and set-up (continued)

5
Air connection adaptors
Two adaptors are available to turn the direction of the air supply whilst keeping the air line design compact. The adaptors should always be used in conjunction with the standard air connection tting, which includes a choke
to maintain smooth air ow.
The 180 degree air turn assembly (A-9768-4416) is typically used with FORTiS-N encoders when the air supply comes from the opposite end to the connection point on the readhead.
The universal elbow (A-9768-4391) turns the air supply through 90 degrees and can be used with either FORTiS-S or FORTiS-N. This can be tted to either the readhead or the extrusion.
NOTE: The air purge connection can be made to either the readhead or the extrusion; it does not need to be applied to both.
Installation and set-up (continued)

6
NOTE: Maintenance space is required for lter element replacement.
Dimensions and tolerances in mm
Full-size air lter dimension drawing
(10.6) (10.6)
6.5
43.2
84.8
245.8
Direction of ow
5.5
33
107
29.8 30
3.5
2
28
24
24 30
Maintenance space 40mm
(A-9768-4353)
M5 × 3.8 deep drain port
59.8

7
Reduced-size air lter dimension drawing Dimensions and tolerances in mm
(10.6) (10.6)
6.5
43.2
84.8
202.6
5.5
33
107
29.8 30
3.5
2
28
24
24 30
Direction of ow
Maintenance space 40mm
(A-9768-4354)
M5 × 3.8 deep drain port
59.8
NOTE: Maintenance space is required for lter element replacement.

8
Perform regular checks to nd cracks, aws or other deterioration on the resin bowl. Replace with a new
bowl if any damage is found. Check for dirt in the resin bowl periodically. If necessary, wash the bowl with
a neutral detergent. Replace with a new bowl if contamination is excessive.
Replace the element(s) every twoyears, or if pressure drop from initial outlet pressure reaches 0.1MPa,
or the element is broken.
Maintenance
Ensure the pressure is OFF and downstream
exhausted before any maintenance is attempted.
Stage 1 lter (A-9768-4353 full-size air lter assembly only)
1. Release the bowl assembly by unscrewing it anticlockwise to detach it from the product. If
the bowl assembly is too tight to be removed, use a hook spanner until it can be loosened
by hand.
2. Detach the element assembly by grasping the outer edge between the two snap ts of the
deector and pulling up.
3. Detach the element by rotating the bafe in the direction of the arrow.
Stage 2 / 3 lters
Stage 1 lter
(A-9768-4353 only)
Pressure drop from
initial setting ≥1bar
(0.1MPa)
Reverse process to reassemble
1. Attach the element to the deector and rotate 90° clockwise to x into position.
2. With the element assembly attached to the case assembly, attach the snap t of the
deector to the bowl assembly until a ‘pop’ is heard.
3. Rotate the bowl assembly clockwise to secure it to the product. Tighten by hand to a
tightening torque of 2.2N.m.
CAUTION: Always use neutral detergent. Other washing material can cause damage to the bowl.
Dimensions and tolerances in mm
Dimensions and tolerances in mm
Element assembly Deector
Snap t
(two places)
Pull up
Bafe
Element
Bowl assembly

9
Stage 2 and stage 3 lters
1. Release the bowl assembly by unscrewing it anticlockwise to detach it from the product. If the
bowl assembly is too tight to be removed, use a hook spanner until it can be loosened by hand.
2. To remove the element, hold the element with a 7 mm wrench and rotate it anticlockwise.
NOTE: It is recommended to use the Renishaw service kit (Renishaw part no. A-9768-4385) for the
full-size air lter (A-9768-4353) or (Renishaw part no. A-9768-4386) for the reduced-size air lter
(A-9768-4354), as it contains all service items required.
Maintenance (continued)
Reverse process to reassemble
1. Hold the element with a spanner to rotate it clockwise to a torque of 0.49N.m (+/− 0.05N.m).
2. Rotate the bowl assembly clockwise to secure it to the product. Tighten by hand to a
tightening torque of 2.2N.m.
Dimensions and tolerances in mm
Bowl assembly
Element assembly

Renishaw plc
New Mills, Wotton-under-Edge
Gloucestershire, GL12 8JR
United Kingdom
T [phone]
F [phone]
E [e-mail]
www.renishaw.com
For worldwide contact details, visit www.renishaw.com/contact
Part no.: M-9768-9492-01-A
Issued: 07.2021
*M-9768-9492-01*
Renishaw plc. Registered in England and Wales. Company no: 1106260.
Registered ofce: New Mills, Wotton-under-Edge, Gloucestershire, GL12 8JR, UK.