FlexLink XS User manual

1
Conveyor maintenance manual
FlexLink conveyors XS, XL, XM, XH, XK, XB
Contents
General safety and design considerations................. 2
Introduction ........................................................... 2
Maintenance............................................................... 4
System maintenance............................................. 4
Maintenance instructions ...................................... 4
Introduction to drive units...................................... 5
Slip clutch adjustment........................................... 6
Inspection – drive units ......................................... 8
Inspection – conveyor chains................................ 9
Inspection – slide rails, beams, idlers, bends...... 11
Inspection – safety devices................................. 12
Replacement of worn parts – conveyor chain..... 13
Replacement of worn parts – slide rails.............. 14
Anchoring slide rail.............................................. 15
Troubleshooting ....................................................... 17
Checklist/maintenance schedule.............................. 18
System dismantling and disposal............................. 19
Important safety precautions............................... 19

2 General safety and design considerations
General safety and design considerations
Introduction
Critical factor
To achieve an operational installation which is reasona-
bly safe for all people involved in its use and mainte-
nance,itisnecessarytoconsidercertainaspects.This is
done when designing a conveyor system. The chain is
generally the critical factor to consider with guarding.
Safeguarding
All pinch and shear points as well as other exposed mov-
ing parts that present a hazard to people at their worksta-
tions or their passageways must be safeguarded.
Overhead conveyors must be guarded to prevent objects
falling. Cleated conveyor chains are more hazardous in
creatingmorepinchandshear pointsthanplainconveyor
chains.
Safeguarding can be achieved by:
•Location
Location of the hazardous area away from the area
occupied by personnel, wherever possible.
•Guards
Mechanical barriers preventing entry into the hazard-
ous areas or protecting against falling objects.
• Control devices
Machine controls which prevent the interruption of
hazardous operations/conditions.
• Warnings
Instructions, warning labels, or sound/light signals
which alert to hazardous conditions.
Safeguarding shouldbe designedtominimizediscomfort
or difficulties to the operator. Bypassing or overriding the
safeguarding during operation should be difficult.
Warning labels etc. should only be used when all
other means of safeguarding will impair the function of
the installation or are not cost effective.
The degree of safeguarding required should be iden-
tified during the implementation of the essential safety
requirement during the design process.

General safety and design considerations 3
Introduction (continued)
Special considerations
When correctly applied, the FlexLink family of compo-
nents are safe to use and maintain. It is however neces-
sary for those responsible for design, installation,
operation and maintenance of the FlexLink installation to
be aware of certain areas where special attention is
required.
All drive units with slip clutch
• Before adjusting the slip clutch it is necessary to
remove all objects from the chain to remove any
remaining chain tension.
• Adjustment should be conducted in accordance with
the maintenance procedures.
• All drive units, except the direct drive units, are fitted
with transmission chain covers. these covers must be
fitted before unit is operated.
Note
The slip clutch is not a personnel safety device, but a
device to protect the conveyor equipment.
End drive units
• The chain slack (catenary) of the end drive units must
be maintained during the system lifetime.
• If side plates are fitted, the chain must be shortened if
the chain becomes visible below the level of the side
plates.
• The opening between the links when they turn round
the end roller could be a risk. Drive ends should not
be accessible during conveyor operation wherever
possible.
For coupled drive units, safety protection should be
applied to the connecting shaft.
Intermediate drive units
• The area near the guides for the return loop of the
chain should not be accessible during conveyor oper-
ation.
Catenary drive unit
• The ‘bridge’ area where the chain goes down into the
drive should not be accessible during conveyor oper-
ation.
Horizontal bend drive unit
• The drive wheel and the transmission chain should
not be accessible during the conveyor operation.
Idler units
• The opening between the links when they turn round
theidler rollercouldbe arisk. Idlerendsshould notbe
accessible during conveyor operation wherever possi-
ble.
Wheel bends
• Guarding may be required at wheel bends depending
upon location of bends and load applied to the con-
veyor.
Cleated chains
• Any application incorporating cleated chains requires
careful safety consideration. Pinch and shear points
are generated throughout the assembly of the incor-
porated components. Therefore generous guarding
shouldalwaysbeemployedto fully protect within user
operating limitations.
• There is a higher risk of product damage when using
cleated chains. Special attention must be given to
operator access in the event of products becoming
trapped or similar.
Maintenance
The maintenance routine of FlexLink conveyors should
also include procedures to ensure that the guarding
remains securely fastened and effective (if not inter-
locked via control system etc.).
FlexLink components are continuously reviewed to
improve performance either by design modification or
material upgrade. In all these reviews user safety is our
primary consideration.
All associated technical data are retained at the man-
ufacturers address.
Control system
Before operating or completing any maintenance on con-
trol system, read the associated section as supplied with
the equipment documentation.
If there are any questions as to the safe operating pro-
cedures of the equipment supplied, please contact Flex-
Link Systems immediately.

4 Maintenance
Maintenance
System maintenance
Introduction
The following section is designed to offer assistance for
your planned maintenance schedule. It may become evi-
dent that the suggested maintenance intervals can be
extended to accommodate your local environmental con-
ditions.
Maintenance of the FlexLink conveyor systems
should only be carried out by competent persons, who
arefamiliar with FlexLinkequipment. If there is anydoubt
as to the most suitable procedure for maintenance, con-
sult your FlexLink supplier.
Non FlexLink equipment
Equipment and components which are not from the Flex-
Link family of products should be maintained and serv-
iced in accordance with their respective manufacturer’s
instructions.
Safety considerations
Before starting any maintenance on your FlexLink equip-
ment, the following safety instructions must be observed:
• All electricity must be switched off.
• Make sure that the motor switch is also switched off
and locked in the “off” position.
• Pneumatic and/or hydraulic power must be discon-
nected and any pressure accumulation released.
• Products being transported should, if possible, be
removed from the conveyor chain.
• Staff affected must be informed that maintenance
work is being undertaken.
Warning
Do not climb onto the equipment.
Maintenance instructions
Introduction
This maintenance manual contains directions for the
standard components sold through the FlexLink main
catalogue, for conveyor systems XS, XL, XM, XH, XK,
and XB unless otherwise stated. For non-FlexLink com-
ponents, such as motors, pneumatic equipment, control
systems etc., the manufacturer’s maintenance instruc-
tions apply. In general, maintenance instructions are not
given for equipment which the customer has chosen and
specified for fitting to the installation.
The instructions supplied should be followed to
ensure that the installation runs with a high degree of
safety and to minimize the risk of breakdowns which can
adversely affect the production.
The installation must be used for the transport of
goods in accordance with system specification or within
design criteria as outlined in the general catalogue. If a
fault occurs on the installation which cannot be rectified
with the help of the instructions in the manual, or if unex-
pected conditions occur during servicing, contact your
FlexLink retailer or FlexLink maintenance personnel.
Warranty/guarantee
FlexLink conveyors are covered by warranty/guarantees
as identified within the trading terms issued for each
country. Check the warranty conditions for your system
before submitting claims etc. If you are in any doubt as to
what warranty is applicable to your system, consult your
supplying agent or FlexLink Systems direct.
Spare/replacement parts
If there is a demand for spare parts, contact FlexLink
Systems or your supplying agent.
Checklist/maintenance schedule
A suggested maintenance schedule is shown on
page 18.
Important
Consult your system documentation for any special
maintenance required for your specific installation.

Maintenance 5
Introduction to drive units
Four types
There are four different types of drive unit: end drive
units, intermediate drive units, catenary drive units and
horizontal bend drive units.
End drive units
End drive unit with return chain, located at the ‘pulling’
end of the conveyor. End drive units are either transmis-
sion chain types (see picture) or direct drive types.
Intermediate drive units
Intermediate drive unit located at an intermediate posi-
tion along the conveyor.
Catenary drive units
Catenary drive unit without return chain, located at an
intermediate position along the conveyor.
Horizontal bend drive units
Horizontal bend drive unit for driving endless conveyors
without return chain.
Chain transmission
The drive units are normally fitted with roller chain trans-
mission. Some end drive units come with direct drive.
Note
The roller chain transmission has chain guards and gear-
ingprotection.Theseguardsshouldalwaysbeinposition
when the conveyor is in operation.

6 Maintenance
Slip clutch adjustment
Old and new versions
The slip clutch is available in two versions. Shipping of
the new version began in 2001. Adjustment of both ver-
sions are described here.
Introduction
The slip clutch on the drive unit is a safety device which
allows the chain to stop if the load becomes excessive. It
has two purposes:
• Prevent damage to conveyor
• Prevent damage to the products on the conveyor
Where a slip clutch is fitted, it must be adjusted so that it
does not slip whenever the drive unit is started under full
load. The installation is carried out as follows:
Preparations for adjustment
1 Stop the conveyor.
2 Ensure that the conveyor can not be started acciden-
tally. For example: unplug the electric power plug.
3 Remove any load on the conveyor.
Caution:
If you try to adjust the slip clutch when
there is still load on the conveyor, the
accumulated tension in the chain can
cause severe injuries when you release
the clutch.
Slip clutch should not be adjusted until
1 Motor direction is confirmed
2 Conveyor is fully assembled
Important:
The slip clutch is not a personal safety
device. It is primarily intended to protect the
equipment.
Clutch adjustment, old type
1 Remove the transmission cover.
2 Unscrewthethree screws(8) so thatthe outer ring(7)
can be rotated freely.
3 Hand-tighten the outer ring (7) to stop (no tools!).
4 Look for the desired maximum traction force in the
table to the right and determine the X value for that
force.
5Positive X-value: (If the X value is negative (X≤0)
ignore step 5 and go to step 6.) Turn the outer ring (7)
counter-clockwise the number of divisions given by
the table, i.e. the X value. One division is defined as
the angle (30°) between adjacent holes in the stop
ring (6). Check that screws (8) align with the holes in
the stop ring (6).
6Negative X-value: (If the X value is positive (X≥0)
ignore step 6 and go to step 7.) Turn the outer ring (7)
clockwisewithahookwrench,thenumberofdivisions
given by the table, i.e. the X value. One division is
defined as the angle (30°) between adjacent holes in
the stop ring (6). Check that screws (8) align with the
holes in the stop ring (6).
7 Tighten the three screws (8) to stop. Use 10 mm
wrench
Clutch adjustment table, old type
Fmax isthedesired maximumtraction forceapplied to the
chain by the drive unit. The clutch will start slipping at
forces above Fmax.
Note
The values in the table are approximate and apply to
factory-new slip clutches.
2
3
7659
4
10
1
8
Traction force Fmax (N) X (div.) Traction force Fmax (N) X (div.)
XS
XL XM XH
XW
XK XM
XH XW XK
450 450 100 19 1200 1200 1400 6
475 475 200 18 1300 1500 5
525 300 17 1400 1600 4
575 400 16 1525 1700 3
625 500 15 1800 2
675 600 14 1900 1
725 700 13 2000 0
775 800 12 2100 –1
825 900 11 2200 –2
875 1000 10 2300 –3
925 1100 92400 –4
1000 1200 8 2500 –5
1100 1300 7

Maintenance 7
Slip clutch adjustment (continued)
Clutch adjustment, new type
1 Remove the drive unit protection cover.
2 Usean Allenkey,3mm, toloosen the screw(1)on the
slip clutch so that the adjustment nut (2) can be freely
rotated.
3 Turn the adjustment nut (2) clockwise with a hook
spanner until the arrow on the nut is aligned with the
desired Fmax value (3). See the following table for cor-
rect values.
Note: On delivery, the clutch is always set to “0”.
4 Tighten the screw (1).
5 Re-install the drive unit protection cover.
Clutch adjustment table, new type
Fmaxis the desired maximum tractionforceapplied to the
chain by the drive unit. The clutch will start slipping at
forces above Fmax. Hook spanner
1
2
3
No.
Traction force, Fmax (N)
XS
XL XM, XH XK, XB XT XK H
0300 300 300 600
1 400 400 400 800
2500 500 500 1000
3 700 700 1150
4800 800 1300
51550
61050 1050 1700
7
81250 1250 2000
9
10 1400 2200
11
12 1500 2400
13
14 1650 2500
Standard and direct drives 1/2”:
Slip clutches marked 3904324,
5052769, 3925774, 5052827
Standard drives 5/8”:
Slip clutches marked
3925071, 5052772

8 Maintenance
Inspection – drive units
Roller chain transmission
The roller chain transmission should be checked and
lubricated after 50, 250, 500 hours ofoperation,and then
every 500 hours.
Ifthe roller chain transmissionis notfittedwith a chain
tensioner the chain tension should be checked on this
occasion.
At the same time as the roller chain tension is
checked, the chain must also be lubricated with a suita-
ble chain spray or similar.
If the transmission is fitted with a chain tensioner,
lubrication should only be carried out at the stated inter-
vals. The condition of the chain tensioner must be
checked at the same time as the lubricating is done.
Note
The discs in the slip clutch must be kept free from oil and
grease.
Worm gear motor and geared motor
The worm gear or geared motor is checked in accord-
ance with the instructions from the relevant supplier.
Guide for the conveyor chain
The purpose of the guide for the conveyor chain is to
guide the return chain correctly into the drive unit.
Fully enclosed drive units do not have guides. On
these, no slack is permitted at the drive unit since the
conveyor chain is being controlled all the time. Special
attention must be given to chain elongation in conveyors
of this configuration.
If guides are fitted they can be of two different types:
• Loose disposable guides in plastic.
• Guides integrated into the ends of the drive unit...
General checks on drive unit
Carry out a general inspection of the drive unit.
• Check particularly that the protective covers for the
roller chains are complete and firmly in place.
• Replace damaged/worn parts.
Replaceable chain guides
Chain guides integrated into ends.

Maintenance 9
Inspection – conveyor chains
Conveyor chains
The most common types of conveyor chains are:
• Plain conveyor chains.
.
• Chain with cleats for inclined or vertical conveyor sec-
tions. The cleats are generally spread over the chain
at a predetermined distance.
• Chain with flexible cleats for vertical wedge convey-
ors.
• Chain with friction surface for conveyors with an
incline up to 30°. The friction surfaces are normally
distributed over the chain at a predetermined dis-
tance.
Cleated, friction and wedge chains
Cleated chains, friction chains and wedge chains, or
other special chains should be inspected regularly, and
any defective links replaced or cleaned.
Warning
Only warm water (50°C), with soap if necessary, may be
used for cleaning conveyor chains.
• Check the guards on cleated chain conveyors.
Checking the tension of conveyor chain
The chain is made of elastic material. The chain eventu-
ally stretches as the material creeps. The extent of the
stretch depends on the traction force in the chain. The
stretch shows itself as slack on the return side of the
drive unit.
The tension of the conveyor chain should be checked
after50,250, 500hours ofoperationandthereafter every
500 hours.
In operation there will be some slack in the conveyor
chain. How much slack is acceptable depends on the
length of the conveyor chain. The most suitable places to
check the slack in the chain are at intermediate or end
drive units.
Plain conveyor chain
Cleated chain
Chain with flexible cleats
Chain with friction surface

10 Maintenance
Inspection – conveyor chains (continued)
Important:
The chain should therefore be pre-tensioned while the
conveyor is stationary, but must never be so tight that
there is no slack during operation. There should be no
appreciable slack on the chain when the conveyor is sta-
tionary. This can, however, vary depending on the total
lengthofthechain.Ifthereis toomuchslack,therewillbe
excessive wear on the chain guides and the chain. This
could be a risk for injury.
If the slack on the conveyor chain is unacceptably
high, it must be shortened by splitting the chain and
removing the necessary number of links. See “Shorten-
ing conveyor chains” on page 10.
If the conveyor has a guided drive unit with no chain
slack take up, the elongation of the chain has to be mon-
itored even more carefully, to ensure a trouble free oper-
ation.
Shortening conveyor chains
The most suitable place to shorten the chain is at the
drive unit.
Alternatively:
• at a beam section for chain installation which has
detachable sections.
• by removing the side plates of the drive or idler end
unit in closed systems.
• at a wheel bend by removing the outer curve.
• ataconveyorbeam sectionforliftablechain (ifthereis
any).
Instructions
1 Make the conveyor chain accessible at some of the
overhead positions.
2 Remove the steel pin (1) from the pivot (2). Use the
pin insertion tool (see figure).
3 Remove the necessary number of links.
Note. With cleated or friction chains, pay attention to
the divisions between the links.
4 Join the chain together with a new pivot.
Note. The old pivot should not be re-used. When the
chain is divided, a new pivot must always be fitted.
5 Insert the steel pin using the pin insertion tool.
6 After inserting the steel pin, check that it is centered
and that the chain easily bends in the fitted link.
The conveyor chain must show some slack during
operation.
The conveyor chain does not need to show any slack
when the conveyor chain is stationary.
Beam section for chain installation
Chain joint components
Usage of pin insertion tool

Maintenance 11
Inspection – slide rails, beams, idlers, bends
Checking slide rails
The condition of the slide rails is fundamental to the func-
tioning of the installation. It is therefore essential that
these are in good condition.
Checking the slide rail with the conveyor chain in place
The slide rail must be checked after every 250 hours’
operation. Carry on the checking on a stationary con-
veyor with the chain in place.
• Check the fastening points on the slide rail.
• Check the joints on the slide rail.
• Check that there is a gap between the slide rails and
that the joints are correctly fitted.
• Check that the joints are not deformed.
• Check that the slide rail has not been broken off.
Replace the slide rail if necessary, see “Replacing the
slide rail”, beginning on page 14.
Checking the slide rail, conveyor chain removed
Atleast onceayearor afterevery2 000hours’ operation,
the chain should be removed from the beam, and the
slide rail carefully checked for wear and fastening.
Plainbends should be checked after every500 hours’
operation, since these are subjected to higher loads.
• Carry out the same checks as were carried out during
“Checkingsliderailswith theconveyorchaininplace”.
• Check the slide rail for wear and tear.
Note
Check in particular the inner slide rail in plain bends,
since the stresses here are particularly high.
• Check the slide rails for scratches and notches.
• Replace the slide rail and fasteners if necessary, see
“Replacing slide rails” on page 14.
Wash the conveyor chain.
Conveyor beams, idler ends, and bends
Theconveyorbeams themselvesdo not normallyrequire
any regular inspection. Be observant for damage arising
from external factors, warping or deformation. Deforma-
tion can cause the conveyor chain to jam, resulting in
uneven running.
Idler ends and wheel bends do not normally require
any special inspections, but they should be checked
when the slide rails are inspected.
Largeradiusplain bends mayhave inner support rails
fittedtothebeam. Ensurethat theserails(if fitted)are not
worn, paying particular attention to the “lead-in” area.
Correct configuration of joints
Deformed joints
5
25
4
25 10
100
50
Inner support rails

12 Maintenance
Inspection – safety devices
Protective and safety devices
Safety devices should be checked at regular intervals.
• Check the chain guard for roller chain transmission.
This guard must always be in place when the con-
veyor is in motion.
• Check the protective cover on the cleated chain con-
veyor return chain.
• Drive units type H, have a slack protection for the con-
veyorchain.Checkthattheslackprotectionplatesare
in place, and that the chain does not slacken enough
to hang below the plates.
• Check the protective cover for the conveyor chain on
intermediate drive units and catenary drive units.
• There may be other types of guard which are specific
to your installation, and these must also be checked.
See the system documentation.
Chain guard for roller chain transmission
Slack protection plate for drive unit type H

Maintenance 13
Replacement of worn parts – conveyor chain
Removal of conveyor chain
1 Ensure that the power to the drive motor is discon-
nected.
2 Disengage the motor; there are various methods
depending on the type of drive unit:
— Detach the slip clutch.
— Remove the roller chain.
— Disengage the gear from the drive wheel.
3 Split the chain by removing the steel pin from the
pivot. Use the special tool for insertion/removal.
4 Pull out the chain.
Fitting the conveyor chain
1 Run a sample (approx. 0.3 m) of conveyor chain
through the installation in the direction of the con-
veyor. Check that the chain moves easily and cor-
rectly through the bends and idler ends. Check at the
same time that there is enough space for the chain.
2 Put the new conveyor chain in place. Check that the
chain direction corresponds to the conveyor direction.
Note
Be careful that the first link of the conveyor chain does
not damage the slide rails.
Immediatelyinvestigatethe reasonsforanyjammingand
take immediate action.
3 Shorten the conveyor chain to the right length. Fit the
pivot and the steel pin, using the special pin inser-
tion/removal tool.
After fitting, check that the steel pin is centered and
that the chain can easily bend in the fitted link.
4 Check that the slack is not excessive. See “Checking
the tension of conveyor chain” on page 9.
Pin insertion/removal tool
Sample for checking conveyor chain space
The conveyor chain direction

14 Maintenance
Replacement of worn parts – slide rails
Replacing slide rails
It is very important to assemble slide rails correctly to
ensure smooth system operation.
Follow the illustrated instructions on the following
pages carefully. Observe the following points:
• Single-cut pliers are suitable tools for cutting the slide
rails.
• Use mounting tool for slide rail XLMR 140,
XMMR 140, XHMR 200, or XKMR 200.
• Use drill fixture 3920500. The distance between
anchor points must be 50 mm.
• Use a high quality drill bit to avoid forming a shoulder,
preferably one which is intended for drilling alumin-
ium.
• Use XLAH 4×6/XLAH 3×6 rivets.
When fitting the slide rails with rivets, the fitting instruc-
tions on page 15 must be followed.
• The joints on the slide rails must have a distance of
100 mm between them. The joints should be laid out
asin the picture with a gap of approx. 10 mm between
the rails.
• Joints may not be positioned in bends, or in the tran-
sition between two sections of beams.
• The slide rails should normally be approximately 5 m
long on a straight conveyor beam. In a bend, the max-
imum length of slide rail should be 3 m.
• Thejointsshould bepositioned aminimumof500 mm
before an idler end unit, drive unit or vertical bend.
The slide rail must overlap the recess in the idler end
and drive unit.
• The inner slide rail after a wheel bend must be cut so
that the cut surface is parallel to the wheel. In front of
the wheel bend, the slide rail will normally be cut at
45°.
Note
Check the final slide rails visually, as well as running a
section of conveyor chain through the installation.
Analternative tothe aluminiumrivets,istousetheplastic
screws XLAG 5 (XWAG 5 for XK). See page 16 for fitting
instructions. The holes for the plastic screws are
threaded with a tap.
Single cut pliers
Mounting tool for slide rail
Drill fixture 3920500
1
2
XLMR 140
XMMR 1
40
XHMR 20
0
XKMR 20
0
∅

Maintenance 15
Anchoring slide rail
Fixing slide rail to the conveyor beam
The beginning of each slide rail section must be fixed to
the beam, since the chain will cause the slide rail to be
pushedforward.Slide railwhichmovesintoawheelbend
or a drive unit can block the chain completely.
There are two different methods for fixing slide rail to
the conveyor beam: using aluminium rivets or plastic
screws. Either method can be used, but the riveting
method is more secure if the conveyor will run with high
operational speed or be heavily loaded.
Method 1: Using aluminium rivets
Mounting:
Hand drill
Drill fixture for slide rail 4,2 mm (XS: 3,2 mm)
Countersink
Rivet crimping pliers/rivet crimping clamp
Aluminium rivets
1 Insert rivets in the holes, using rivet crimping pliers or
a rivet crimping clamp. For type of rivet, see table on
previous page.
2 If working space is limited, the rivet crimping clamp
might be easier to use. The two crimping tools per-
form the same task, but the pliers are more efficient
and easier to use.
3 Checkthat the rivets do not protrude over the surface
of the slide rail.
Checkbothtopand underneathsurfaceof sliderailfor
protruding metal.
4 Keep a distance of approximately 30 mm between riv-
ets and idler unit. This is in case the idler unit has to
be removed after conveyor system assembly.
correct wrong

16 Maintenance
Anchoring slide rail (continued)
Method 2: Using plastic screws
Analternative to aluminium rivetsis to use plastic screws
XLAG 5:
Mounting:
Pliers/screwdriver
Knife
Hammer
Plastic screws XLAG 5
1 Press or screw the screws into the holes using a pair
of pliers or a screwdriver.
2 Cut off the screw heads by using a knife and a ham-
mer. The cut should be made away from the joint, in
the direction of chain travel.
3 Make sure the slide rail surface is smooth and that
screws do not protrude over the surface of the slide
rail. If the surface should be uneven, file the edges
smooth.
Checkbothtopand underneathsurfaceof sliderailfor
protruding plastic or metal.
4 Keep a distance of approximately 30 mm between
screws and idler unit. This is in case the idler unit has
to be removed after conveyor system assembly.

Troubleshooting 17
Troubleshooting
Jerky running
Drive unit is running, conveyor chain is not
Motor overheating on drive unit
Noise
Abnormal wear on plastic parts
Cause Corrective action
Damaged or badly fitted
slide rail Inspect and replace as necessary.
Wrongly adjusted slip
clutch Check and adjust slip clutch.
Worn transmission parts Check/replacetransmissionchain,chain
drive sprocket.
Conveyor chain is too
tight/loose Tension conveyor chain correctly.
Dirty conveyor Clean conveyor chain/slide rail. Lubri-
cate with silicone based lubricant.
Cause Corrective action
Wrongly adjusted slip
clutch Check adjustment of slip clutch.
Friction discs in slip clutch
are worn or contaminated Check and replace if necessary.
Damaged/badlyfittedslide
rail Check the free running of the conveyor chain.
Transmissionproductsare
not fitted Check and fit.
Cause Corrective action
Overloaded conveyor Removeproductsfromconveyorand test
run.
Check actual conveyor load against rec-
ommended loading.
Gearbox leaking oil Check output shaft seal and area around
motor/gearbox interface.
Dirty conveyor Clean the conveyor chain with warm
water (50°).
Cause Corrective action
Worn or damaged bear-
ings in drive unit Check/replace drive unit.
Damaged/badlyfittedslide
rail Check the free running of the conveyor chain, especially in slide rail joints.
Excessive conveyor speed Lower speed.
Checkactualloadagainstrecommended
loading.
Incorrect conveyor chain
tension Lengthen/shorten conveyor chain.
Cause Corrective action
Overloaded conveyor Remove products from conveyor
and test run.
Check the free running of the con-
veyor chain.
Check actual conveyor load
against recommended loading.
Ambient temperature too high Check against recommended
temperature for conveyor.
Chemicalsinthe environmentare
affecting plastic parts Checkin FlexLinkmaincatalogue (section TR) for listing of incom-
patible chemicals.
Damage due to ingress of con-
taminate Clean the system.
Particles, swarf etc. Remove source of contamination.

18 Checklist/maintenance schedule
Checklist/maintenance schedule
No. General checks Number of operating hours/time interval See page
1. Check roller chain, sprocket, chain tension and lubrica-
tion of drive unit 50 250 500 Then every 500 hours Page 8
2. Check/adjustment of slip clutch Every 1 000 hours Page 6
3. Check conveyor chain guides in drive units and idler
ends Every 1 000 hours Page 8
4. Check tension of conveyor chain 50 250 500 Then every 500 hours Page 9
5. Check slide rails Every 250 hours Page 11
6. Check slide rails, conveyor chain removed. Every 2 000 hours, or at least once a year Page 11
7. Check slide rails in plain bends. Every 500 hours Page 11
8. Check safety and security devices At least once a year Page 12

System dismantling and disposal 19
System dismantling and disposal
Important safety precautions
Dismantling
Dismantling of the FlexLink conveyor system should be
carried out by competent persons, who are familiar with
the equipment being decommissioned.
In the absence of detailed information, every care
should be taken to ensure that all items are securely
retained during the decommissioning process. This is to
ensure that the equipment remains stable and will not fall
if left unattended.
If pneumatics or hydraulics are to be decommis-
sioned, special attention should be given for the safe
release of any accumulated pressure from within the cir-
cuitry. All reservoirs/accumulators must be depressu-
rised prior to removal.
If there are any doubts as to the most suitable proce-
dure for decommissioning, then consult the equipment
supplier.
Conveyor system XS, XL, XM, XH, XK, and XB
To dismantle a FlexLink conveyor the following tools are
required.
1 Remove any remaining product from the conveyor
system.
2 Switchoffallelectrical powerand disconnect all pneu-
matic and hydraulic feeds, including accumulators.
Ensure that system is safe by shutting down all feed
supplies or removing electrical fuses.
3 Remove the black transmission cover from drive unit
to expose slip clutch and transmission drive chain.
4 Thelockingeffectofthe slip clutchcan be removedby
removing the transmission chain or by releasing the
slip clutch (section in maintenance and service refers
to slip clutch adjustment).
5 Remove the motor gear unit from the conveyor drive
assembly.Themotorgearunitmaybefitted withanoil
breather. Ensure that the oil from the gearbox cannot
leak into the surrounding area when decommis-
sioned. Oil should be drained from the gearbox and
disposed of in accordance with local environmental
regulations.
6 Remove guide rails and guide rail brackets etc.
7 Split the conveyor chain using the pin insertion tool
and remove the conveyor chain. If removing conveyor
chain from over head conveyor special attention
should be given when removing the last few metres.
The weight of the removed chain accelerates the
removal from the conveyor beams and can cause
injury when the last links exit the extrusion. The chain
should always be removed in the conveyor working
direction.
8 Unscrew the inner grub screws from the drive unit
connector strips and remove drive end from the con-
veyor. Repeat for idler end unit.
9 Remove the slide rail on all sides of the conveyor
extrusion. Remove the slide rail retaining fixings by
drilling away the rivets or plastic screws and pulling
away the slide rail from the aluminium extrusion pro-
file.
10 Dismantle the conveyor extrusions from the support
brackets. This should be done in a systematic man-
ner, removing conveyor section by section. Where
extrusions are joined by connecting strips, first
untighten the retaining grub screws from the connec-
tion strips. It may be necessary to release the clamp
effect of the connector piece by giving a sharp tap
with a hammer.
11 Dismantle the conveyor support system into separate
components.
12 Sort different materials ready for disposal. Include a
list of the materials.
If other equipment is to be dismantled simultaneously
with the FlexLink conveyor, attention should also be
given to the interaction of the other equipment to the
FlexLink conveyor. Pneumatic equipment should be
removedfromtheconveyorbeforedismantling.Hydraulic
equipment should also first be removed to assist disman-
tling and handling of the conveyor components during
dismantling and disposal.
Ring spanners /10 mm and 13 mm size
Allen keys
Pin insertion tool XS/XL = XLMJ 4
Pin insertion tool XM = XMMJ 6
Pin insertion tool XH = XHMJ 6
Pin punch XK = XKMJ 8
Hammer
Drill to remove slide rail rivets