LIQUIP LYNX Series Operating and maintenance instructions

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LIQUIP DRYBREAK COUPLER
LYNX Series
MAINTENANCE INSTRUCTIONS
API LOADING COUPLER TO API RP1004
February 2016
Issue: DRAFT A

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CONTENTS
LYNX Series Datasheet .......................................................................................................................3
LYNX Series Drawing...........................................................................................................................3
LYNX Series Parts List.........................................................................................................................5
LYNX Series Exploded View................................................................................................................6
What You Will Need………………………………………………………………………………….……...…7
Testing For Excessive Wear ................................................................................................................8
Suggested Maintenance Schedule ......................................................................................................8
Replace Product Seal (In-Situ).............................................................................................................9
Replace Outer O-Ring (In-Situ)..........................................................................................................10
Replace Bush And O-Ring Assembly (On Work Bench)....................................................................11
Disassemble And Reassemble Procedure –disassemble (On Work Bench)....................................13
Disassemble And Reassemble Procedure - reassemble (Continued) ...............................................15
Troubleshooting .................................................................................................................................16
Spare Parts........................................................................................................................................18

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LYNX Series Datasheet

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LYNX SERIES DRAWING

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LYNX SERIES PARTS LIST
NOTE: For a list of available spare parts please refer to section 9.

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LYNX SERIES EXPLODED VIEW

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WHAT YOU WILL NEED
4mm Allen Key
Pliers
Flathead Screwdriver or
O-Ring Pick
Adjustable Spanner
Safety Glasses

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ATTENTION
THE STEPS OUTLINED IN THIS DOCUMENT MUST BE PERFORMED BY AUTHORISED PERSONNEL ONLY.
FOR FURTHER EXPLANATION PLEASE CONTACT YOUR LIQUIP REPRESENTATIVE.
1. TESTING FOR EXCESSIVE WEAR
Option 1: Connect an API-LI to the LYNX series coupler. Please consult Liquip for more info on the API-LI.
Option 2: Connect the coupler to a new API vehicle adaptor. With the vehicle adaptor clamped securely in a vice try to
rock the coupling in relation to the vehicle adaptor. Be sure to rock the coupler about the axis which it would normally
receive the most wear and tear. If there is any more than 5mm lateral movement at the back end of the coupler it is
worn out and unserviceable.
2. SUGGESTED MAINTENANCE SCHEDULE
Recommended Service Schedule for Liquip LYNX Series Couplers.
Because loading gantries vary in usage the following schedule is calculated on the number of connections.
1. DETERMINE THE LOADING GANTRY CATEGORY
Note: All Chemical Couplers should be treated and maintained as per the HIGH USE schedule.
a. LOW USE: 1 to 10 Connections per day.
b. MEDIUM USE: 11 to 20 Connections per day.
c. HIGH USE: 21 to 50 Connections per day.
Choose a category that best suits your loading gantry.
2. SERVICE NUMBER
a. SN 1
i. Visually inspect the product seal for damage, replace if required.
ii. Visually inspect latches for dirt build up and clean if required.
iii. Inspect handle interlock for damage, report and locate cause if evident.
iv. Visually inspect for leaks on all sealing areas while the coupler is on the loading arm.
b. SN 2
As SN1 with the addition of:
i. Check the operation of the self-latching mechanism for smooth and free operation.
ii. Visually inspect the latches for excessive wear.
iii. Visually inspect poppet adaptor ring for damage.
iv. Visually inspect the body adjacent to the poppet adaptor ring for mushrooming and/or burrs.
v. Visually inspect the poppet face for damage.
c. SN 3
As SN1 and SN2 with the addition of:
i. Strip and remove shaft and bush assembly and replace o-ring and bush assembly.
ii. Check the hinge casting and wire handle are in good condition and do not show significant
signs of wear. Check springs are not broken.
iii. Visually inspect the wave spring for damage, replace if required.
iv. Visually inspect the latches for excessive wear when stripped inspect the roll pin axles are tight
and not worn, replace if required.
v. Replace all product seal and outer o-ring.
vi. Visually inspect the sealing surface for the poppet adaptor ring, any wear or damage shown in
this area, replace the body.
vii. Check valve mouth for excessive wear or damage and replace body if required.
OPERATING PERIOD
LOW USE
MEDIUM USE
HIGH USE
3 MONTHS
SN 1
SN 1
SN 1
6 MONTHS
SN 1
SN 1
SN 2
9 MONTHS
SN 1
SN 2
SN 1
1 YEAR
SN 2
SN 1
SN 3
1 YEAR & 3 MONTHS
SN 1
SN 1
SN 1
1 YEAR & 6 MONTHS
SN 1
SN 3
SN 2
1 YEAR & 9 MONTHS
SN 1
SN 1
SN 1
2 YEARS
SN 3
SN 2
SN 3
Carry out service number listed at each time interval, when service No 3 is reached, return back to the start of the
operating period.

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3. REPLACE PRODUCT SEAL (API800-1/API800-1VG/API800-1K/API800-1NBR) (IN-SITU)
1. Isolate loading arm to prevent product flow. Drain off the loading arm and ensure the LYNX8xx is clean and
dry.
2. Squeeze the handle (API555-6) and push all four latches in at once. Whilst holding the latches in, slowly
release the handle to allow the collar to slide forward.
3. Turn the operating handle (API800-11 or API800-15) to open the poppet (API800-9).
4. Push the poppet adaptor ring (API800-4) back and remove the product seal using a suitable tool ensuring you
don’t damage the poppet adaptor ring.
NOTE: Do not damage the poppet adaptor ring when removing the product seal.
5. Clean the product seal groove and poppet adaptor ring using a clean cloth.
6. Inspect the poppet tapered sealing face ensuring it is clean and free from damage. If dirty, remove grease and
debris with a clean cloth and if damaged replace the poppet (as per Section 6).
NOTE: Ensure you inspect the poppet seal face for damage and replace if required.
7. Check and inspect wear on poppet legs. If poppet legs are worn replace the poppet.
NOTE: Ensure you inspect poppet legs for damage and replace if required.
8. Push the new product seal into the product seal groove using your thumbs (as shown) ensuring the seal is
fitted correctly under the groove.
NOTE: When installing the product seal, loosely press in 4 places equally around the seal before pushing the
seal securely home to avoid uneven compressing of the seal. Ensure seal outside edge is in the groove all
around.
9. Check that the product seal is fitted correctly by rubbing your fingers over it. It should feel free from lumps.
NOTE: If lumps are felt, remove the product seal and refit. It is important that the product seal is fitted correctly.
10.If you want to replace the outer o-ring, follow steps 4 to 7 of Section 4 and then continue this procedure.
11.Close the coupler operating handle and then pull back the latch release handle allowing the collar to retract and
click into place.
Step 9
Step 11
Step 2
Step 3
Step 4
Step 8
NOTE: Photos are provided for key steps
= Care must be taken to ensure the quality of the unit.

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4. REPLACE OUTER O-RING (0203/0203VG/0203K/0203B) (IN-SITU)
1. Isolate loading arm to prevent product flow. Drain off the loading arm and ensure the LYNX8xx is clean and
dry.
2. Squeeze the handle (API555-6) and push all four latches in at once. Whilst holding the latches in, slowly
release the handle to allow the collar to slide forward.
3. Turn the operating handle (API800-11 or API800-15) to open the poppet (API800-9).
4. Pull the poppet adaptor ring (API800-4) forward.
5. Remove the outer o-ring (0203 or 0203VG) without damaging the poppet adaptor ring.
NOTE: Do not damage the poppet adaptor ring when removing outer o-ring.
6. Clean the outer o-ring poppet groove and body mating surface using a clean cloth.
7. Grease the new outer o-ring using solvent resistant grease and install the o-ring onto the poppet adaptor ring.
NOTE: During insertion minimise o-ring twist and do not overstretch or damage the o-ring. Do not roll the o-ring
into place, as this will shorten the life of the o-ring.
8. Close the coupler operating handle and pull back the latch release handle allowing the collar to retract and click
into place.
Step 7
Step 8
NOTE: Photos are provided for key steps
= Care must be taken to ensure the quality of the unit.
Step 2
Step 3
Step 4
Step 5

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5. REPLACE BUSH AND O-RING ASSEMBLY (On Work Bench)
1. With the coupler removed from the arm, squeeze the handle (API555-6) and push in all four latches in at once.
Whilst holding the latches in, slowly release the handle to allow the collar to slide forward.
2. Turn the operating handle (API800-11 or API800-15) to open the poppet (API800-9).
3. Remove the cap screw (55091) and nyloc nut (4399) using an Allen key and remove the operating handle.
4. Remove U-pin (API800-23) from above the bush assembly using a pair of pliers.
Warning: Wear Safety glasses and remove U-pin with caution as it may spring out when removed.
5. Extract the bush and o-ring assembly. Tip: Jiggle out the shaft to help extract the bush and o-ring assembly.
6. Remove the bush and o-ring assembly. If the washer comes out, clean it with a clean cloth for refitting as per
step 8.
7. Clean the shaft and the bore of grease and debris using a clean cloth.
8. Install the new washer if it came out during step 6. If it did not come out simply grease the new bush and o-ring
assembly well using solvent resistant grease and install the new bush and o-ring assembly ensuring it clears
the U-pin groove.
NOTE: Use your thumbs to push the bush and o-ring assembly into place until it is seated into position and
ensure the bore is clean and free from debris.
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 8
= Care must be taken to ensure the quality of the unit.
NOTE: Photos are provided for key steps

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9. Install the U-pin and ensure it is secure.
Warning: Wear safety glasses and install U-pin with caution as it may spring out during insertion.
10.Refit the operating handle as per the orientation shown and refit the cap screw & nyloc nut (4399), ensuring the
handle is secured in placed by tightening the cap screw/nyloc nut.
NOTE: 1. Ensure a new Nyloc nut is used each time. Do not re use old Nyloc nut.
2. When refitting the handle bolt recommended torque is 3-4Nm (this is the torque required to screw
through the nyloc nut, but excessive force may damage or strip the nut threads).
11. Close the coupler operating handle and pull back the latch release handle allowing the collar to retract and click
into place.
Step 10
Step 11
Step 9

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6.1.1 DISASSEMBLE AND REASSEMBLE PROCEDURE (On Work Bench)
Disassemble
1. With the coupler removed from the arm, squeeze the handle (API555-6) and push in all four latches in at
once. Whilst holding the latches in, slowly release the handle to allow the collar to slide forward.
2. Turn the operating handle (API800-11 or API800-15) to open the poppet (API800-9).
3. Remove the cap screw (55091) and nyloc nut (4399) using an Allen key and remove the operating handle.
4. Remove U-pin (API800-23) from above the bush assembly using a pair of pliers.
Warning: Wear Safety glasses and remove U-pin with caution as it may spring out when removed.
5. Hold the eccentric cam (API800-27)so it remains in a position without tilting and remove the operating
handle and shaft assembly by pulling the handle away from the coupler body.
6. Remove the sleeve from the bottom groove where the shaft sits.
7. Lift the coupler body. The poppet (API800-9) and wave spring (6182) will come out. (Put these aside)
8. Remove the grub screws (3227) using an Allen key.
= Care must be taken to ensure the quality of the unit.
NOTE: Photos are provided for key steps
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
Step 8

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9. Turn the unit so the flange faces down and the pins (API800-13) should slide out.
10. Turn the unit so the flange faces up.
11. Remove the springs (4497). If they are damaged replace them as required.
Warning: Wear Safety glasses and remove springs with caution as they may spring out when removed.
12. Remove split pin (0762) from the latch release handle (API555-6) and lever (API555-10).
13. Pull the latch release handle.
14. Lift and slide out the lever.
15. Lift the collar off the body (API800-2).
16. Inspect the collar for wear. If wear is evident contact your local Liquip Representative.
17. Inspect Wave Spring (6182) for damage. If it is damaged or broken replace as per Section 6.1.2 -
Disassemble and Reassemble procedure (pages 15-16).
NOTE: The remaining parts are the latches and latch return springs, these can be removed by knocking the roll
pin out until the latch falls free. There should be no reason to remove these latches, as they should not wear
significantly to require changing. If it appears that the latches or latch return springs need replacing please contact
your Liquip/OPW representative.
Step 13
Step 14
Step 15
Step 12
Step 10
Step 11
Step 9

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6.1.2 DISASSEMBLE AND REASSEMBLE PROCEDURE (continued)
Reassemble
1. Sit body on bench with the flange facing down.
2. If any of the springs (6171) came out during the disassemble procedure. Inspect them for wear and replace
as required. Refit the springs into the drilled holes in the body.
NOTE: If latches do not move or operate freely, replace them or contact your local Liquip/OPW
Representative.
3. Sit body assembly on bench with flange facing up.
4. Place the collar over body. Ensure all latches are pressed in so that the collar drops flush with the front
face.
5. Place lever (API555-10) on the bottom of the coupler as per the orientation shown.
6. Place springs (4497) into the recess of the lever, lining them up with the holes for the grub screws.
Warning: Wear Safety glasses and install springs with caution as they may spring out during insertion.
7. Place pin-springs (API800-13) into the holes of the coupler body.
8. Fit the grub screws (3227) and tighten with an Allen key so they sit below the surface of the coupler body.
9. Fit the latch release handle (API555-6) into the lever (API555-10) ensuring it is in the correct orientation as
shown.
10. Fit the split pins (0762) into both ends of the handle and secure by bending the longer end of the pin over
(as shown).
11. Replace seals on poppet adaptor ring in line with instructions in Sections 3 –Replace Product Seal and 4
–Replace Outer O-Ring.
Step 3
Step 4
Step 5
Step 6
Step 7
Step 8
Step 9
Step 10
= Care must be taken to ensure the quality of the unit.
NOTE: Photos are provided for key steps

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12. Inspect poppet (API800-9) and replace as necessary.
13. Place the poppet adaptor ring (API800-4) over the poppet (API800-9) followed by the wave spring (6182).
NOTE: Ensure the wave spring (6182) is replaced before the coupler is re-assembled.
14. Place body (API800-2) on top of poppet assembly. To ensure proper orientation, ensure the back of the
cam plates are facing the scallop on the body (as shown).
15. Grease the sleeve using solvent resistant grease and fit the sleeve ensuring the flat end of sleeve is facing
the inside of the coupler.
16. Grease the shaft and bush assembly (API850-5Axx) and fit it, ensuring it goes through the eccentric cam
and eccentric cam sleeve and sits in the sleeve at the bottom of the coupler body.
17. Push the bush and o-ring assembly in past the U-pin groove.
18. Install the U-pin (API800-23) and ensure is securely fitted.
Warning: Wear Safety glasses and install U-pin with caution as it may spring out during insertion.
19. Refit the operating handle (API800-11 or API800-15) as per the orientation shown and refit the cap screw &
nyloc nut (4399), ensuring the handle is secured in placed by tightening the cap screw/nyloc nut.
NOTE: 1. Ensure a new Nyloc nut is used each time. Do not re use old Nyloc nut.
2. When refitting the handle bolt recommended torque is 3-4Nm (this is the torque required to screw
through the nyloc nut, but excessive force may damage or strip the nut threads).
20. Close the coupler operating handle and pull back the latch release handle allowing the collar to retract and
click into place.
Step 13
Step 14
Step 15
Step 16
Step 17
Step 18
Step 19
Step 20

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8. TROUBLESHOOTING
LEAKS AROUND OPERATING SHAFT (API850-5A or API850-5AVG or API850-5AC or API850-5ANBR)
Leaks between the operating shaft and the bush are caused by worn or damaged o-rings on the operating shaft. Refer
to Section 3 - Replace Bush and O-Ring Assembly for bush and o-ring replacement.
LEAKS AROUND POPPET/POPPET ADAPTOR RING (API800-9/API800-4)
Leaks around the poppet adaptor ring are caused by worn or damaged o-rings in the adaptor ring. Refer to Section 4 -
Replace Outer O-Ring.
LEAKS WHEN COUPLED WITH API ADAPTOR (TRUCK VALVE) DURING LOADING
This indicates the coupler product seal may be damaged or worn. Check visually on disconnection from the truck valve.
Also check the API adaptor (truck valve) seal face for damage or wear. If replacement of the coupler product seal is
required this can be carried out without taking the coupler valve out of service. Refer to Section 5 - Replace Product
Seal.
LEAKS IMMEDIATELY AFTER DISCONNECTION WITH API ADAPTOR (TRUCK VALVE)
This indicates the coupler product seal may be damaged or worn. Check visually on disconnection from the truck valve.
This could also indicate that the API adaptor poppet may be protruding excessively from the adaptor seal surface.
Check the API adaptor (truck valve). If replacement of the coupler product seal is required this can be carried out
without taking the coupler valve out of service. Refer to Section 5 - Replace Product Seal.
COUPLER NOT LATCHING CORRECTLY TO THE TRUCK ADAPTOR
Dirt built up on the latches may prevent the coupler from latching correctly to the truck adaptor and may prevent the
collar from sliding forward naturally. Remove dirt from all latches and regularly monitor.
For other issues, contact your local Liquip Representative.

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9. SPARE PARTS
The table below lists common spare parts for the LYNX8xx series.
(Please refer to Pages 4 and 5 for further item detail.)
Part Number
Spare Part Description
Contents
Quantity
required*
API850SKZ
LYNX850 All seal kit (Viton B)
1 x API800-1 Product Seal (Viton B)
1 x 0203 Outer O-ring (Viton B)
1 x 5805 Grease Kit
1 x API850-7A
1
API850VGSKZ
LYNX850 All seal kit
(Viton GFLT)
1 x API800-1VG Product seal (Viton GFLT)
1 x 0203VG outer o-ring (Viton GFLT)
1 x 5805 Grease Kit
1 x API850-7AVG
1
API8KITZ
LYNX850 Poppet Seal/O-ring Kit
(Viton B)
1 x API800-1 Product Seal (Viton B)
1 x 0203 Outer O-ring (Viton B)
1 x 5805 Grease Kit
1
API8VGKITZ
LYNX850 Poppet Seal/O-ring Kit
(Viton GFLT)
1 x API800-1VG Product seal (Viton GFLT)
1 x 0203VG outer o-ring (Viton GFLT)
1 x 5805 Grease Kit
1
API850-7A
Bush and O-ring assembly
(Viton B)
1 x Bush and O-ring assembly (Viton B)
1 x M6 Nyloc Nut (4399)
1 x Shim washer (API800-14)
1
API850-7AVG
Bush and O-ring assembly
(Viton GFLT)
1 x Bush and O-ring assembly (Viton GFLT)
1 x M6 Nyloc Nut (4399)
1 x Shim washer (API800-14)
1
API850-7AC
Bush and O-ring assembly
(FFKM)
1 x Bush and O-ring assembly (FFKM)
1 x Nyloc Nut (4955)
1 x Shim washer (API800-14)
1
API850-7ANBR
Bush and O-ring assembly
(NBR - Nirtile)
1 x Bush and O-ring assembly (NBR - Nirtile)
1 x Nyloc Nut (4955)
1 x Shim washer (API800-14)
1
API800-1
Product Seal (Viton B)
1 x Seal Product (Viton B)
1
API800-1VG
Product Seal (Viton GFLT)
1 x Seal Product (Viton GFLT)
1
API800-1K
Product Seal (FFKM)
1 x Seal Product (FFKM)
1
API800-1F
Product Seal (Fluorosilicone)
1 x Seal Product (Fluorosilicone)
1
API800-1NBR
Product Seal (NBR - Nirtile)
1 x Seal Product (NBR - Nirtile)
1
0203
O-ring (Viton B)
1 x O-ring - poppet adaptor ring (Viton B)
1
0203VG
O-ring (Viton GFLT)
1 x O-ring - poppet adaptor ring (Viton GFLT)
1
0203B
O-ring (NBR - Nirtile)
1 x O-ring - poppet adaptor ring (NBR - Nirtile)
1
0203K
O-ring (FFKM)
1 x O-ring - poppet adaptor ring (FFKM)
1
API800-23
U Pin
1 x U-Pin assembly
1
6182
Wave Spring
1 x Wave Spring
1
0762
Split Pin
1 x Split Pin
4
API725-4Z
Latch Collar Interlock Kit
4 x Latch Collar Interlock
4 x Latch spring
4 x Latch Pin
4
0927
Spring Roll Pin for latches
1 x Spring (Roll) Pin (for Latches)
4
*Quantity required for applicable models.