Graco 406774E, Merkur Seal Repair Kit for LW150A, Kit Parts Owner's Manual

GENUINE GRACO PARTS AND ACCESSORIES
®
Merkur
Seal
Repair Kits
406774E
EN
For Model LW150A (150 cc) Merkur Displacement Pump
Important Safety Instructions
1 Lubricate.
Read all warnings and instructions in
manuals 312792 and 312794.
Save all instructions.
2 Torque to 58-62 ft-lb (78-84 N•m).
3 Torque to 95-105 ft-lb (128-142 N•m).
NOTE: Full disassembly shown. Disassemble only as far as needed for
the parts being replaced.
4 Torque to 78-82 ft-lb (105-111 N•m).
5 Apply thread lubricant.
Apply high-strength (red) thread locker.
1 33
2
6 Remove and replace only if damaged.
6
See reverse for parts.
27 1
2
5
18 1
10
4 5
1
See throat
packings in
appropriate
seal kit on
page 2.
28 1
1
21 1
See piston
packings in
appropriate
seal kit on
page 2.
4
3
5
4
5
25 1
26
ti17307a
Ref.Description
Qty.
4
SPRING, throat
1
6
GLAND, male, throat
1
7
PACKING, throat, UHMWPE
3
8
PACKING, throat, PTFE
2
9
GLAND, female, throat
1
Standard Seal Repair Kit 24A256
Throat Packings:
Lips Face Down
11
9
12
7
10 SPRING, piston
1
11 GLAND, male, piston
1
8
12 PACKING, piston, UHMWPE
3
7
13 PACKING, piston, PTFE
2
14 GLAND, female, piston
1
18 O-RING, piston,
1
0.9 in (23 mm) OD
19 PACKING, throat,
Piston Packings:
Lips Face Up
13
12
8
13
7
12
6
14
5
reinforced PTFE
20 PACKING, piston,
ti17306a
Lubricate Packings
5
reinforced PTFE
21 O-RING, lower cylinder,
1
2.7 in. (69 mm) OD
25 O-RING, lower cylinder,
1
2.3 in. (58 mm) OD
26 O-RING, inlet check,
1
1.0 in. (25 mm) OD
27 O-RING, wet cup,
1
Optional Seal Kits:
24J857 - Carbon-Filled PTFE
26C712 - Reinforced PTFE
Use with materials that cause chemical compatibility
concerns with UHMWPE, such as acid catalyst
materials.
1.9 in. (48 mm) OD
28 O-RING, wet cup,
1
2.3 in. (58 mm) OD
33 O-RING, outlet fitting,
Throat Packings:
Lips Face Down
1
Piston Packings:
Lips Face Up
1.0 in. (25 mm) OD
9
TIP: Some o-rings are close in size. Stack on bench to
differentiate. O-rings 26 and 33 are the same.
}
11
}
19
20
14
6
Lubricate Packings
All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
Original instructions. This manual contains English. MM 406774
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
Copyright 2008, Graco Inc. is registered to ISO 9001
www.graco.com
Rev. E, 06/2019

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