Metso JAMESBURY EASYFLOW SC Series Operating and maintenance manual

IMO-503 EN • 3/2020
JAMESBURY® EASYFLOW
PNEUMATIC CYLINDER
SC SERIES Ø32  Ø100
Installation, Maintenance and
Operating Instructions

IMO 3/20
2 IMO-503 EN
READ THESE INSTRUCTIONS FIRST!
These instructions provide information about safe handling and operation of the valve.
If you require additional assistance, please contact the manufacturer or manufacturer’s representative.
Addresses and phone numbers are printed on the back cover.
See also www.metso.com/valves for the latest documentation.
SAVE THESE INSTRUCTIONS!
TABLE OF CONTENTS
1. INTRODUCTION....................................................... 3
1.1 Denitions........................................................................ 3
2. OPERATION PRINCIPAL .......................................... 3
3. LABEL DESCRIPTION............................................... 3
4. INSTALLATION PROCEDURE .................................. 4
5. MAINTENANCE ........................................................ 5
6. TOOL KIT .................................................................. 5
7. DISASSEMBLY.......................................................... 5
7.1 Front cover disassembly ............................................. 6
7.2 Piston disassembly........................................................ 6
7.3 Rear cover disassembly............................................... 7
7.4 Tube.................................................................................... 7
8. ASSEMBLY................................................................ 7
8.1 Rear cover assembly..................................................... 7
8.2 Piston assembly ............................................................. 8
8.3 Front cover assembly................................................... 8
9. ASSEMBLY DETAILS ................................................ 9
10. PACKAGING & STORE............................................ 10
11. ASSISTANCE........................................................... 10

IMO 3/20
IMO-503 EN 3
1. INTRODUCTION
Thank you for choosing METSO product. Each product
is fully inspected after the production to oer you the
highest quality. In order to fully utilize the product, we
strongly recommend users to read this manual carefully and
understood.
This manual provides information on installation, operation
and maintenance procedures and related instructions for
the RMEBS make pneumatic cylinder (SPC series).
The aim of this literature is to support the use of products in
correct manner, and all the technical information provided
in the catalogue.
The manual should be given to the end user.
The manual can be changed or revised without any prior
notice. Any changes in product’s specication, structure,
and/or any components may not result immediate revised
version of the manual.
The manual should not be duplicated or reproduced for any
purpose without any consent of RMEBS Manufacturers &
Engineers Private Limited, INDIA.
Manufacturer Warranty
For the safety, it is vital to follow instructions in the manual.
It is not RMEBS’s liability for any damages which caused by
users’ negligence.
It is not RMEBS’s liability for any damages or accidents which
resulted by any alteration or modication of the product
and parts. If alteration or modication is necessary, please
contact the RMEBS directly.
RMEBS warrants the product from the date of original
retail purchase of the product for one (1) year, except as
otherwise stated.
RMEBS warranty will not cover the products that the
product have been subjected to abuse, accident, alteration,
modication, tampering, negligence, misuse, faulty
installation, lack of reasonable care, repair or service in any
way that is not contemplated in the documentation for the
product, or if the model or serial number has been altered,
tampered with, defaced or removed; damages that occurs
in shipment, failure due to power surge, and cosmetic
damage. Improper or incorrectly performed maintenance
or report voids this Limited Warranty.
For detailed warranty information, please contact :
RMEBS MANUFACTERURS & ENGINEERS PRIVATE LIMITED,
Manapada road, Dombivli (e), Maharashtra, India, Pin - 421204
1.1 Denitions
WARNING:
IF NOT OBSERVED, USER INCURS A HIGH RISK OF SEVERE DAMAGE
TO PRODUCT AND/OR FATAL INJURY TO PERSONNEL.
CAUTION: IF NOT OBSERVED, USER MAY INCUR DAMAGE
TO PRODUCT AND/OR INJURY TO PERSONNEL.
NOTE: Advisory and information comments provided to
assist maintenance personnel to carry out maintenance
procedures.
2. OPERATION PRINCIPAL
Pneumatic cylinder is a mechanical device which uses power
of compressed air/gas to produce a force in a reciprocating
linear motion.
The basic pneumatic cylinder consists of a cylindrical
chamber with a movable piston and intake and exhaust
channels.
Compressed air or other gas is supplied into the cylindrical
chamber. This pressurized air/gas exerts force against the
base of the piston, which causes piston to move, providing
a way to move other mechanical elements.
3. LABEL DESCRIPTION
Label of the cylinder denes the precise feature of that
particular cylinder. This description is written below the
METSO logo and is as follow.
M.O. NO.: Manufacturing order number
DATE: Date of manufacturing
Model no.: SC – Type
DA – Double acting cylinder
00 – standard MOC of piston rod
00 – Standard model
NB – Piston diameter 350 mm
32 – Stroke length 250 mm
50 – Stroke length 250 mm

IMO 3/20
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4. INSTALLATION PROCEDURE
The equipment must be installed in the accordance with the
laws, guide lines and rules applicable within the country.
As per ISO 8573 we required air quality as below.
1. Particle size < 5  (class 5)
2. Pressure dew point < -20°C (class 3) for actuator
3. Pressure dew point < -40°C (Class 4) for positioner
4. Concentration of total oil < 5 mg/m3
WARNING:
OPERATING CYLINDERS OVER TEMPERATURE OR PRESSURE LIMITS
WILL RESULT IN DAMAGE TO CYLINDERS.
CAUTION: DO NOT DISMANTLE THE CYLINDER WHILE
OPERATION IS IN LINE. DO NOT ALLOW DIRTY AIR OR FLUIDS
TO GET INTO THE CYLINDER. USE FILTER UNIT FILTER SIZE
40ΜM, 3°C FOR DUST AND MOISTURE REMOVAL.
NOTE: Ensure the installation meets the legal and regulatory
requirements of the country and state of use. The cylinder
assembly should be left in the original packing until it is
required for the use. The metallic pipe connections should
be rinsed with degreasing or by grease dissolving liquids
or agents, before being connected to our cylinder. Flush all
pipes with 4 kgf/cm2air for at least 1/2 hour. Lubrication is
not necessary (Maintain once started oil mist lubrication. As
per ISO 3448 recommended oils are NUTO H 32, VG 32. Oil
viscosity 32 cSt at 40°C). Operating pressure range 1-10 bar.
Operating temperature range -20°C to +70°C
1. Pneumatic system is suitable for operation with
compressed air between 1-10 bar. Usually the sizing is
done at the air pressure availability conrmed by the
client. (Hydraulic pressure maximum of 10 bar on request)
2. Hemp laments, jute or even teon ribbons are
normally not required, As the part connections are
accurately threaded. By chance, if any of these or any
other tightening medium get into the operational area
inside the cylinder, possible damage of the cylinder
could not be ruled out.
3. The mounting holes size and bolt size circle are
conrming to ISO 6431 / ISO 15552 norms.The threaded
holes are ISO metric coarse and as ISO 6431 / ISO 15552.
(Refer catalogue)
4. Clean all pipes and tube ttings thoroughly with suitable
means. As even when brand new pipes are tted, unclean
interior are quite covered with dirt and dust.
5. Avoid impact on the cylinder. These may happen during
transportation/ erection/ mishandling.
6. Align properly the rod axis with the load and direction
of movement when connecting. If not properly aligned,
the rod and tube may be twisted and damage may be
caused due to wear on areas such as inner tube surface,
bushing, rod surface and seals.
7. All accessories mountings of cylinders are well
lubricated before dispatch. After removing pin and
circlip store them in clean box. Install pin and circlips
without damaging bore.
8. When an external guide is used, connect the rod end
and the load in such a way that there is no interference
at any point within the stroke.
9. Cushioning –
Perfect pneumatic cushioning produces minimal noise from
end cover contact, and minimum piston deceleration time.
To achieve perfect cushioning, ensure cushioning screw is
full open at the time of installation. Operate cylinder in full
forward to full back. Now keep on tightening cushioning
screw till cylinder stops knocking. This will give maximum
life to your equipment and to pneumatic cylinder.
When stroke comes to an end, cushioning allows air to pass
through cushioning port and thus decelerate the piston
before it strikes the end cap which lowers the stresses on
cylinder components and reduces vibration transmitted to
the machine structure.
If cushioning is not provided then air passes through
exhaust port only. When stroke comes to an end, piston
strikes the end cover with some acceleration, giving rise
to knocking noise, stresses on cylinder components and
vibration transmitted to the machine structure.
Side thrust
Cylinder Gate valveMisalignment by angle θ

IMO 3/20
IMO-503 EN 5
10. For perfect cushioning rotate the screw as shown in
following table.
Bore Ø (mm) No. of allowable rotation
32, 40 2
50, 63 2.5
80, 100 3
Perfect cushioning shows graph as follow.
11. Select the seal material as per working temperature
using following table.
Seal material Min. Temp. Max Temp
NBR -20°C +70°C
Viton -20°C +120°C
5. MAINTENANCE
NOTE: The cylinder must be removed from installation
prior to maintenance. All the connections/ports have to
be disconnected prior to disassembly. All the mountings,
accessories and spare parts used or replaced must be
original from RMEBS.
RMEBS recommends “RMEBS V09” grease for greasing.
Wherever asked, use 7649 primer (dryer) for drying and 242
loctite for tightening eect. Apply the grease with soft brush
or similar. In case of any diculty consult RMEBS distributor.
1. The RMEBS pneumatic cylinder SPC series (Ø32-Ø100)
is designed to operate for piston travel of 20,000 km
without servicing.
2. Install, operate and maintain as per the instructions and
recommendations of this manual.
3. Any deviation from the above will cease the
responsibilities of RMEBS.
4. Verify the following things for that particular operation.
Failure Verify Remedy
a. Cylinder is
not operating
1. Compressed air is not
available Make it available
2. Side thrust is too high Align the component
properly
3. Operating below the
lower speed limit
Eliminate cause of lower
load uctuation
4. Direction control valve
is not operating
Make sure that the pressure
and supplied voltage for
direction control valve are
as per rating
5. Connected device
(Gate valve, globe valve,
damper, etc.) get stucked
Do maintenance of
connected device
6. Load factor is too high Raise pressure or use
larger cylinder
7. Speed controller is
meter-in control
Change to meter-out
control
b. Cylinder
opeartes too
slow
1. Air pressure is
insucient
Check for the leakge and
make it leak proof
2. Air ow is insucient
Check pressure drop on
AFR gauge and make sure
that tube sizes are proper
6. TOOL KIT
Tool Ø Bore 32 Ø 40 Ø 50 Ø 63 Ø 80 Ø 100 Ø
1. Allen key for
cover bolt 6 mm 6 mm 8 mm 8 mm 10 mm 10 mm
2. Allen key for
SHC screw 5 mm 6 mm 8 mm 8 mm 10 mm 10 mm
3. Spanner for
piston rod 10 mm 14 mm 17 mm 17 mm 22 mm 22 mm
4. Spanner for
lock nut 17 mm 19 mm 24 mm 24 mm 30 mm 30 mm
5. Screw driver 8 -10 8 -10 8 -10 8 -10 8 -10 8 -10
6. Blunt needle 14g x 1” 14g x 1” 14g x 1” 14g x 1” 14g x 1” 14g x 1”
7. DISASSEMBLY
WARNING:
ALL ELECTRIC AND PNEUMATIC CONNECTIONS SHOULD BE
REMOVED BEFORE STARTING DISASSEMBLY.
CAUTION: DO NOT PLACE DISMANTLED PART ON ANY
DIARY/WORK BENCH BUT KEEP IT ON CLEAN PAPER/
CLOTH IN SAME SEQUENCE AS YOU HAVE DISMANTLED IT.
NOTE: It is advisable to replace all the rubber parts using
genuine RMEBS spare kit. Numbers in parentheses, ( )
indicate the bubble number (reference number) used on
the RMEBS Assembly details and Part List.
Speed
Displacement
C. screw loose
Perfect cushioning
C. screw too
much tight

IMO 3/20
6 IMO-503 EN
7.1 Front cover disassembly
1. Remove lock nut (19), Loosen the cylinder cover bolt (6)
of front cover (1) and remove it.
2. Remove rod seal (10) using screw driver.
3. Remove o-ring (13) and cushion seal (11), take out
cushioning screw (8) with o-ring (20).
4. Clean it with liquid soap solution. After drying apply
grease on rubber parts. Replace these rubber parts.
7.2 Piston disassembly
1. Pull the piston rod (4) with piston (3) out side the tube (15).
2. Take out SHC screw (7) and spring washer (9) to
disassemble rod from piston (3). Since SHC screw has
been removed,the piston rod (4) with o-ring (18) can be
removed from piston (3).
3. Use blunt needle to remove lip seal (14) from piston (3)
4. Observe damage of teon strip (16), if necessary replace it.
5. Clean it with liquid soap solution. After drying apply
grease on rubber parts. Replace these rubber parts.

IMO 3/20
IMO-503 EN 7
7.3 Rear cover disassembly
1. Loosen the cylinder cover bolt (6) of rear cover (2),
thereby remove rear cover (2) from tube (15).
2. Remove o-ring (12) and cushion seal (11), take out
cushioning screw (8) with o-ring (20).
3. Clean it with liquid soap solution. After drying apply
grease on rubber parts. Replace these rubber parts.
7.4 Tube
1. Clean with soap solution. After drying apply thin layer of
grease inside the tube (15) to make it ready for assembly.
8. ASSEMBLY
NOTE: Follow the sequence as given below to ensure proper
assembly.
8.1 Rear cover assembly
1. Clean it with liquid soap solution. After drying apply
RMEBS grease on rubber parts.
2. Place Cushioning seal (11) and o-ring (12) on its groove.
Place o-ring (20) on cushioning screw (8), assemble the
cushioning screw on rear cover.
3. Place the rear cover (2) on the tube (15), just push while
rotating to get xed on it so that o-ring on the cover
should not get damaged while assembling.
4. Fasten the cylinder cover bolt (6) of rear cover (2).

IMO 3/20
8 IMO-503 EN
8.2 Piston assembly
1. Clean the piston. Apply RMEBS grease on rubber parts.
2. Place lip seal (14) on groove of piston. Place o-ring (18)
on inner counter face of piston rod. Finally insert the
piston rod (4) into the piston (3).
3. Apply drop of 7649 primer (dryer) on internal threads of
piston rod. Wait for a minute and again apply a drop of
242 loctite on same threads. Now tighten the piston rod
with the help of SHC screw (7) by using combination of
spring washer (9).
4. Insert this piston rod assembly carefully into the tube.
8.3 Front cover assembly
1. Clean it with liquid soap solution. After drying apply
RMEBS grease rubber parts.
2. Place rod seal (10) on its groove.
3. Place cushioning seal (11) and o-ring (13) on its groove.
Place o-ring (20) on cushioning screw (8), assemble the
cushioning screw on front cover.
4. Place the front cover on the tube, just push while
rotating to get xed on it so that o-ring on the cover
should not get damaged while assembling.
5. Fasten the cylinder cover bolt (6) of front cover and
engage the lock nut (19).
NOTE: Operate the cylinder assembly by hand. It should be
free rotating piston rod & operating in and out.

IMO 3/20
IMO-503 EN 9
9. ASSEMBLY DETAILS
PART LIST
Sr.no Name Quantity
1 FRONT COVER 1
2 REAR COVER 1
3 PISTON 1
4 PISTON ROD 1
5 PISTON ROD GUIDE 1
6 COVER BOLT 8
7 SHC SCREW 1
8 CUSHIONING SCREW 2
9 WASHER 1
10 ROD SEAL 1
11 CUSHIONING SEAL 2
12 REAR O-RING 1
13 FRONT O-RING 1
14 LIP SEAL 2
15 CYLINDER TUBE 1
16 PISTON GUIDE 1
17 PERMANENT MAGNET 2
18 O-RING 1
19 LOCK NUT 1
20 O-RING 2

IMO 3/20
10 IMO-503 EN
10. PACKAGING & STORE
1. When not in use, CYLINDER ASSEMBLY should be kept
in a sealed plastic bag in a cardboard box to prevent
moisture or dust from contacting product.
2. CYLINDER ASSEMBLY should be stored in a dry place
free from water and dust.
3. Store at temperature between 40°F and 120°F (4°C and
49°C).
4. Locate in an area to avoid damage by impact.
11. ASSISTANCE
For technical questions or assistance, contact any authorized
distributor of RMEBS Private limited. or:

IMO 3/20
IMO-503 EN 11

Subject to change without prior notice.
Metso Corporation
Töölönlahdenkatu 2, PO Box 1220, 00100 Helsinki, Finland
Tel. [phone]
http://contact.metso.com/
Neles Finland Inc.
Vanha Porvoontie 229, P. O. Box 304, FI-01301 Vantaa, Finland.
Tel. [phone]. Fax [phone]
www.metso.com/valves
12 IMO-503 EN