Leser 810 Series User manual

Assembly of the
Main Valve
Series 810 and 820
Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
Assembly of the
Main Valve

Objectives
Disassembly of the pilot
supply filter
Disassembly of the manual
blowdown
Disassembly of the remote
sensing
Disassembly of the piston
and disc
Disassembly of the piston
Disassembly of the luproseal
OC R20
Disassembly the disc
Disassembly of the seat
Disassembly of the pitot tube
Assembly of the
pitot tube
Assembly of the nozzle
Assembly of the O-Ring
disc / stainless steel disc
Assembly of the piston
and back up ring
Assembly of the luproseal
OC R20
Assembly of the piston
and disc
Assembly of the piston
and liner
Assembly of the piston
with liner and body
Assembly of the top plate
2 / 19Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
Objectives of the presentation
Increase special knowledge
Aim of this presentation is to explain the assembly of the
Main Valve.
Objectives

Objectives
Disassembly of the pilot
supply filter
Disassembly of the manual
blowdown
Disassembly of the remote
sensing
Disassembly of the piston
and disc
Disassembly of the piston
Disassembly of the luproseal
OC R20
Disassembly the disc
Disassembly of the seat
Disassembly of the pitot tube
Assembly of the
pitot tube
Assembly of the nozzle
Assembly of the O-Ring
disc / stainless steel disc
Assembly of the piston
and back up ring
Assembly of the luproseal
OC R20
Assembly of the piston
and disc
Assembly of the piston
and liner
Assembly of the piston
with liner and body
Assembly of the top plate
3 / 19Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
Assembly of the
pitot tube
Assembly Instructions
Assembly of the pitot tube
Span body [1] with outlet on test
bench
Insert pitot tube [2] in body [1]
Complete with tube [3] (depends on
nominal size)
Cover O-ring [63] (O-ring is 9,
19x2,62) with soapy water and pull
on fitting [4]
Make sure that O-rings are twist free
Screw fitting [4] in body [1]
While tightening fitting [4], align pitot
tube [2] in direction of inlet with pitot
tube assembly tool
Make sure that inlet of pitot tube is
aligned within approx. ± 5°
1. Steps –Descriptions
1
2
34

Objectives
Disassembly of the pilot
supply filter
Disassembly of the manual
blowdown
Disassembly of the remote
sensing
Disassembly of the piston
and disc
Disassembly of the piston
Disassembly of the luproseal
OC R20
Disassembly the disc
Disassembly of the seat
Disassembly of the pitot tube
Assembly of the
pitot tube
Assembly of the nozzle
Assembly of the O-Ring
disc / stainless steel disc
Assembly of the piston
and back up ring
Assembly of the luproseal
OC R20
Assembly of the piston
and disc
Assembly of the piston
and liner
Assembly of the piston
with liner and body
Assembly of the top plate
4 / 19Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
Assembly Instructions
Assembly of the pitot tube
2. Supplies
Soapy water
Molycote D paste
Lubricate components acc. to LID
3. Tools
Hook tool for O-rings
Helpful: Pitot tube-assembly tool
Open-end wrench acc. to LID
Torque wrench (Tightening torques
acc. to LID)
4. Appliance
Test bench
5
6
6
Assembly of the
pitot tube

Objectives
Disassembly of the pilot
supply filter
Disassembly of the manual
blowdown
Disassembly of the remote
sensing
Disassembly of the piston
and disc
Disassembly of the piston
Disassembly of the luproseal
OC R20
Disassembly the disc
Disassembly of the seat
Disassembly of the pitot tube
Assembly of the
pitot tube
Assembly of the nozzle
Assembly of the O-Ring
disc / stainless steel disc
Assembly of the piston
and back up ring
Assembly of the luproseal
OC R20
Assembly of the piston
and disc
Assembly of the piston
and liner
Assembly of the piston
with liner and body
Assembly of the top plate
5 / 19Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
Mount the POSV with inlet
Pull O-ring [61] and back up ring [62] on
nozzle [5]
Cover O-ring with soapy water
Make sure that O-rings are twist free
Screw nozzle [5] into body [1] by
hand
Install nozzle assembly tool in that
order: protection cap; adapter;
socket wrench; socket extension;
guide; fix guide with three nuts
Screw nozzle [5] in with torque wrench
Assembly of the nozzle
Assembly Instructions
Assembly of the nozzle
1. Steps –Descriptions
12
34

Objectives
Disassembly of the pilot
supply filter
Disassembly of the manual
blowdown
Disassembly of the remote
sensing
Disassembly of the piston
and disc
Disassembly of the piston
Disassembly of the luproseal
OC R20
Disassembly the disc
Disassembly of the seat
Disassembly of the pitot tube
Assembly of the
pitot tube
Assembly of the nozzle
Assembly of the O-Ring
disc / stainless steel disc
Assembly of the piston
and back up ring
Assembly of the luproseal
OC R20
Assembly of the piston
and disc
Assembly of the piston
and liner
Assembly of the piston
with liner and body
Assembly of the top plate
6 / 19Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
Assembly Instructions
Assembly of the nozzle
2. Supplies
Molykote D Paste
Soapy water
Lubricate components acc. to LID
3. Tools
Nozzle-assembly tool acc nominal
size
Depth caliper
Torque wrench with square drive ¾”
(Tightening torques acc. to LID)
4. Appliance
Test bench
56
7
8
9
10
Assembly of the nozzle

Objectives
Disassembly of the pilot
supply filter
Disassembly of the manual
blowdown
Disassembly of the remote
sensing
Disassembly of the piston
and disc
Disassembly of the piston
Disassembly of the luproseal
OC R20
Disassembly the disc
Disassembly of the seat
Disassembly of the pitot tube
Assembly of the
pitot tube
Assembly of the nozzle
Assembly of the O-Ring
disc / stainless steel disc
Assembly of the piston
and back up ring
Assembly of the luproseal
OC R20
Assembly of the piston
and disc
Assembly of the piston
and liner
Assembly of the piston
with liner and body
Assembly of the top plate
7 / 19Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
Check nozzle projection hs
Assembly Instructions
Assembly of the nozzle
Nominal size, Orifice hs +2,5 / -0,5 [mm]
1x2“ D, E, F, G 85,3
1,5x2“ D, E, F, H 96,3
1,5x3“ G,H 106,8
1,5x3“ J 112,8
2x3“ G, H, J 115,8
2x3“ K+ 120,8
3x4“ J, K, L 134,3
3x4“ N+ 154,3
4x6“ L, M, N 167,3
4x6“ P 181,3
4x6“ P+ 190,3
6x8“ Q, R 258,8
6x8“ R+ 268,8
8x10“ T 324,3
8x10“ T+ 334,3
Assembly of the nozzle

Objectives
Disassembly of the pilot
supply filter
Disassembly of the manual
blowdown
Disassembly of the remote
sensing
Disassembly of the piston
and disc
Disassembly of the piston
Disassembly of the luproseal
OC R20
Disassembly the disc
Disassembly of the seat
Disassembly of the pitot tube
Assembly of the
pitot tube
Assembly of the nozzle
Assembly of the O-Ring
disc / stainless steel disc
Assembly of the piston
and back up ring
Assembly of the luproseal
OC R20
Assembly of the piston
and disc
Assembly of the piston
and liner
Assembly of the piston
with liner and body
Assembly of the top plate
8 / 19Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
Cover O-ring [7.3] with soapy water
Place O-ring [7.3] into disc [7.1]
Make sure that O-ring is twist free
Place disc retainer [7.2] into disc [7.1]
Screw on nut [7.4]
Secure nut by two prick punches
Assembly of the O-Ring
disc / stainless steel
1. Steps –Descriptions
Assembly Instructions
Assembly of the O-Ring disc / stainless steel disc
1

Objectives
Disassembly of the pilot
supply filter
Disassembly of the manual
blowdown
Disassembly of the remote
sensing
Disassembly of the piston
and disc
Disassembly of the piston
Disassembly of the luproseal
OC R20
Disassembly the disc
Disassembly of the seat
Disassembly of the pitot tube
Assembly of the
pitot tube
Assembly of the nozzle
Assembly of the O-Ring
disc / stainless steel disc
Assembly of the piston
and back up ring
Assembly of the luproseal
OC R20
Assembly of the piston
and disc
Assembly of the piston
and liner
Assembly of the piston
with liner and body
Assembly of the top plate
9 / 19Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
2. Supplies
Soapy water
Lubricate components acc. to LID
3. Tools
Ring wrench acc. to LID
Torque wrench (Tightening torques
acc. to LID)
4. Appliance
None
Assembly Instructions
Assembly of the O-Ring disc / stainless steel disc
2
3
Assembly of the O-Ring
disc / stainless steel

Objectives
Disassembly of the pilot
supply filter
Disassembly of the manual
blowdown
Disassembly of the remote
sensing
Disassembly of the piston
and disc
Disassembly of the piston
Disassembly of the luproseal
OC R20
Disassembly the disc
Disassembly of the seat
Disassembly of the pitot tube
Assembly of the
pitot tube
Assembly of the nozzle
Assembly of the O-Ring
disc / stainless steel disc
Assembly of the piston
and back up ring
Assembly of the luproseal
OC R20
Assembly of the piston
and disc
Assembly of the piston
and liner
Assembly of the piston
with liner and body
Assembly of the top plate
10 / 19Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
Put piston top [6.2] and piston body [6.1] with
O-ring [6.3] and back up ring [6.4] together
Lubricate O-ring and guide rings [6.5] with
Halocarbon 56 S acc. to LID
Screw piston top [6.2] and piston body [6.1]
together with allen head screws [6.6]
Assembly of the piston
and back up ring
1. Steps –Descriptions
Assembly Instructions
Assembly of the piston and back up ring
2. Supplies
Halocarbon 56 S
Lubricate components acc. to LID
3. Tools
Torque wrench with allen key acc. to LID
Torque wrench (Tightening torques acc. to
LID
4. Appliance
Parallel vice with aluminium jaws
1
2
3

Objectives
Disassembly of the pilot
supply filter
Disassembly of the manual
blowdown
Disassembly of the remote
sensing
Disassembly of the piston
and disc
Disassembly of the piston
Disassembly of the luproseal
OC R20
Disassembly the disc
Disassembly of the seat
Disassembly of the pitot tube
Assembly of the
pitot tube
Assembly of the nozzle
Assembly of the O-Ring
disc / stainless steel disc
Assembly of the piston
and back up ring
Assembly of the luproseal
OC R20
Assembly of the piston
and disc
Assembly of the piston
and liner
Assembly of the piston
with liner and body
Assembly of the top plate
11 / 19Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
2. Supplies
None
3. Tools
Ratchet with allen key acc. to LID
4. Appliance
Parallel vice with aluminum jaws
Assembly Instructions
Assembly of the luproseal OC R20 (optional only)
Assembly of the luproseal
OC R20
Put piston top [6.2] and piston body
[6.1] with luproseal lip seal [6.3]
together
Screw piston top [6.2] and piston body
[6.1] together with allen screws [6.6]
1. Steps –Descriptions
1
23

Objectives
Disassembly of the pilot
supply filter
Disassembly of the manual
blowdown
Disassembly of the remote
sensing
Disassembly of the piston
and disc
Disassembly of the piston
Disassembly of the luproseal
OC R20
Disassembly the disc
Disassembly of the seat
Disassembly of the pitot tube
Assembly of the
pitot tube
Assembly of the nozzle
Assembly of the O-Ring
disc / stainless steel disc
Assembly of the piston
and back up ring
Assembly of the luproseal
OC R20
Assembly of the piston
and disc
Assembly of the piston
and liner
Assembly of the piston
with liner and body
Assembly of the top plate
12 / 19Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
2. Supplies
None
3. Tools
Socket wrench acc. to LID
Torque wrench (Tightening torques
acc. to LID)
4. Appliance
None
Assembly Instructions
Assembly of the piston and disc
Assembly of the piston
and disc
Screw piston compl. [6] and disc [7]
unit –out of step 9.6 and 9.5 –
together with hexagon screw [58]
1. Steps –Descriptions
1

Objectives
Disassembly of the pilot
supply filter
Disassembly of the manual
blowdown
Disassembly of the remote
sensing
Disassembly of the piston
and disc
Disassembly of the piston
Disassembly of the luproseal
OC R20
Disassembly the disc
Disassembly of the seat
Disassembly of the pitot tube
Assembly of the
pitot tube
Assembly of the nozzle
Assembly of the O-Ring
disc / stainless steel disc
Assembly of the piston
and back up ring
Assembly of the luproseal
OC R20
Assembly of the piston
and disc
Assembly of the piston
and liner
Assembly of the piston
with liner and body
Assembly of the top plate
13 / 19Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
Moisten cylinder of liner [8] with
Halocarbon 56 S
Put guide rings [6.5] on unit –
out of 9.7 –
Insert piston complete [6] into liner [8]
carefully for nominal size 1x2…2x3
from bottom and for 3x4…8x10 from
top of liner [8]
Check visual whether there is a gap
of approx. 2-10 mm at each guide
ring
Make sure that piston [6] is free-
moving in liner [8] over it’s full length!
Assembly of the piston
and liner
1. Steps –Descriptions
Assembly Instructions
Assembly of the piston and liner
1
2

Objectives
Disassembly of the pilot
supply filter
Disassembly of the manual
blowdown
Disassembly of the remote
sensing
Disassembly of the piston
and disc
Disassembly of the piston
Disassembly of the luproseal
OC R20
Disassembly the disc
Disassembly of the seat
Disassembly of the pitot tube
Assembly of the
pitot tube
Assembly of the nozzle
Assembly of the O-Ring
disc / stainless steel disc
Assembly of the piston
and back up ring
Assembly of the luproseal
OC R20
Assembly of the piston
and disc
Assembly of the piston
and liner
Assembly of the piston
with liner and body
Assembly of the top plate
14 / 19Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
2. Supplies
Halocarbon 56 S
Lubricate components acc. to LID
3. Tools
None
4. Appliance
None
Assembly Instructions
Assembly of the piston and liner
3
Assembly of the piston
and liner

Objectives
Disassembly of the pilot
supply filter
Disassembly of the manual
blowdown
Disassembly of the remote
sensing
Disassembly of the piston
and disc
Disassembly of the piston
Disassembly of the luproseal
OC R20
Disassembly the disc
Disassembly of the seat
Disassembly of the pitot tube
Assembly of the
pitot tube
Assembly of the nozzle
Assembly of the O-Ring
disc / stainless steel disc
Assembly of the piston
and back up ring
Assembly of the luproseal
OC R20
Assembly of the piston
and disc
Assembly of the piston
and liner
Assembly of the piston
with liner and body
Assembly of the top plate
15 / 19Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
Assembly of the piston
with liner and body
Assembly Instructions
Assembly of the piston with liner and body
11
12

Objectives
Disassembly of the pilot
supply filter
Disassembly of the manual
blowdown
Disassembly of the remote
sensing
Disassembly of the piston
and disc
Disassembly of the piston
Disassembly of the luproseal
OC R20
Disassembly the disc
Disassembly of the seat
Disassembly of the pitot tube
Assembly of the
pitot tube
Assembly of the nozzle
Assembly of the O-Ring
disc / stainless steel disc
Assembly of the piston
and back up ring
Assembly of the luproseal
OC R20
Assembly of the piston
and disc
Assembly of the piston
and liner
Assembly of the piston
with liner and body
Assembly of the top plate
16 / 19Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
2. Supplies
None
3. Tools
Piston disassembly tool
Depth caliper
Tightening torques acc. to LID
4. Appliance
Test bench
Assembly Instructions
Assembly of the piston with liner and body
Place piston [6] and liner [8] into body [1]
by using piston disassembly tool for nominal
size above 3x4
Push piston [6] into lowest position.
Make sure that minimum lift h of the main
valve is reached.
In case of a under run to minimum lift –contact
nearest LESER contract office/ service center
1. Steps –Descriptions
Assembly of the piston
with liner and body

Objectives
Disassembly of the pilot
supply filter
Disassembly of the manual
blowdown
Disassembly of the remote
sensing
Disassembly of the piston
and disc
Disassembly of the piston
Disassembly of the luproseal
OC R20
Disassembly the disc
Disassembly of the seat
Disassembly of the pitot tube
Assembly of the
pitot tube
Assembly of the nozzle
Assembly of the O-Ring
disc / stainless steel disc
Assembly of the piston
and back up ring
Assembly of the luproseal
OC R20
Assembly of the piston
and disc
Assembly of the piston
and liner
Assembly of the piston
with liner and body
Assembly of the top plate
17 / 19Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
Stick rollpin [10] into hole of liner [8]
Make sure that roll pin is orientated to
outlet flange
Put O-rings [60, 67] into groove of
liner [8] carefully
Lubricate studs with Molycote D paste
acc. to LID
Screw studs [55] into threaded holes
of body [1]
Place dome spring [52] in dome
Make sure that O-rings [60,67] do not
pop out of open groove
Assembly of the top
plate
1. Steps –Descriptions
Assembly Instructions
Assembly of the top plate
12
3
4

Objectives
Disassembly of the pilot
supply filter
Disassembly of the manual
blowdown
Disassembly of the remote
sensing
Disassembly of the piston
and disc
Disassembly of the piston
Disassembly of the luproseal
OC R20
Disassembly the disc
Disassembly of the seat
Disassembly of the pitot tube
Assembly of the
pitot tube
Assembly of the nozzle
Assembly of the O-Ring
disc / stainless steel disc
Assembly of the piston
and back up ring
Assembly of the luproseal
OC R20
Assembly of the piston
and disc
Assembly of the piston
and liner
Assembly of the piston
with liner and body
Assembly of the top plate
18 / 19Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
2. Supplies
Molycote D paste
Lubricate components LID
3. Tools
Helpful: Impact wrench acc. to LID
Ring wrench acc. to LID
Torque wrench (Tightening torques
acc. to LID)
4. Appliance
Test bench
Assembly Instructions
Assembly of the top plate
Assembly top plate [9] on body [1]
with nuts [56]
Screw ring nuts [57] on studs [55]
5
Assembly of the top
plate

Objectives
Disassembly of the pilot
supply filter
Disassembly of the manual
blowdown
Disassembly of the remote
sensing
Disassembly of the piston
and disc
Disassembly of the piston
Disassembly of the luproseal
OC R20
Disassembly the disc
Disassembly of the seat
Disassembly of the pitot tube
Assembly of the
pitot tube
Assembly of the nozzle
Assembly of the O-Ring
disc / stainless steel disc
Assembly of the piston
and back up ring
Assembly of the luproseal
OC R20
Assembly of the piston
and disc
Assembly of the piston
and liner
Assembly of the piston
with liner and body
Assembly of the top plate
19 / 19Assembly of the Main Valve | LESER GmbH & Co. KG | 05.06.2018 | Rev. 00
Thank you very much for your attention.
LESER GmbH & Co. KG
20537 Hamburg, Wendenstr. 133-135
20506 Hamburg, P.O. Box 26 16 51
Phone [phone]
Fax [phone]
E-mail [e-mail]
www.leser.com