Vickers 2520V / 2520VQ / 2520VQSV10 Double Vane Pump: Parts Catalog & Rebuild Guide
Vickers 2520V Double Vane Pump: Parts Catalog, Service Data & Rebuild Guide
The Vickers 2520V double vane pump puts a 25V shaft end section and a 20V cover end section on a common shaft in a single housing, giving two independent flows from one drive. The 2520VQ is the high performance version and the 2520VQSV10 adds a V10 vane section. Each end carries its own cartridge kit, and the two ends are sized independently by the displacement codes in the model number. RestoPower supplies OEM or aftermarket equivalent cartridge kits, vane kits, rings, rotors, shafts, bearings and seal kits for every 2520V build.
Exploded View and Parts Diagrams
Vickers 2520V cover end (20V section) with its cartridge kit, ring and vane kit tables.
Vickers 2520V shaft end (25V section) with the shaft end cartridge kit, cover, housing, body and shaft tables, plus the assembly cutaway. Every part number and torque figure on this page is read off these two drawings.
Shaft End Cartridge Kits (25V Section)
| Model | Ring | Shaft End Cartridge Kit | Shaft End F3 Cartridge Kit |
|---|---|---|---|
| 2520V12 | 584610 | 02-102532 | 02-102540 |
| 2520V14 | 584612 | 02-102533 | 02-102541 |
| 2520V17 | 584614 | 02-102534 | 02-102542 |
| 2520V21 | 584616 | 02-102535 | 02-102543 |
Shaft end section parts: rotor 584618, inlet plate 591016, outlet plate 588690, vane kit 02-136719 (12 vanes and inserts), pin 229662 (2 req'd), screw 289472 (2 req'd).
Cover End Cartridge Kits (20V Section)
| Model | Rotor | Vane Kit | Ring | Inlet Plate | Cover End Cartridge Kit | Cover End F3 Cartridge Kit |
|---|---|---|---|---|---|---|
| 2520V***2 | 402690 | 02-136720 | 388683 | 584383 | 02-102506 | 02-102512 |
| 2520V***5 | 402690 | 02-136720 | 333624 | 584383 | 02-102507 | 02-102513 |
| 2520V***8 | 402690 | 02-136720 | 333625 | 584383 | 02-102508 | 02-102514 |
| 2520V***11 | 403539 | 02-136721 | 333626 | 584384 | 02-102509 | 02-102515 |
| 2520V***12 | 403539 | 02-136721 | 353901 | 584384 | 02-102510 | 02-102516 |
| 2520V***14 | 403539 | 02-136721 | 353902 | 584384 | 02-102511 | 02-102517 |
Cover end vane kits contain 10 vanes and inserts. Cover end section parts: outlet plate 584382, pin 158465 (2 req'd), screw 289473 (2 req'd).
Cover, Housing and Body Sub-Assembly
| Model | Cover | Housing | Body S/A |
|---|---|---|---|
| 2520V**A | 250824 | 251263 | 942353 |
| 2520V**C | 252504 | 251263 | 942378 |
| 2520V**E | 252504 | 251263 | 942353 |
| 2520VM**A | 250824 | 251263 | 02-136917 |
| 2520VM**AM | 478510 | 478505 | 02-136918 |
Shaft and Key
| Shaft | Type | Key |
|---|---|---|
| 254964 | (1) Keyed | 9955 |
| 254848 | (11) Splined | - |
| 419083 | (86) Keyed | 3418 |
| 860093 | (192N) Keyed | 472270 |
Seal Kits and Common Parts
| 922856 | Seal Kit, 2520V |
| 919303 | Seal Kit, F3 equivalent |
| FB-B-10 | Foot Bracket Kit |
| 394976 | Shaft Seal |
| 190362 | Retainer |
| 1705 | Bearing |
| 120128 / 191400 | Retaining Rings |
| 419672 / 419673 | Seal Rings, cover end and shaft end |
| 154026 / 154090 / 154078 / 154095 | O-Rings |
| 588506 / 588507 | Back-up Rings |
| 199491 | Foot Bracket, optional, with screw 199740 (2 req'd) |
Vickers 2520V Torque and Assembly Specs
| Item | Value |
|---|---|
| 38523 Bolt (4 req'd) | 88.1-101.7 N.m (65-75 lb.ft) |
| 1296 Bolt (4 req'd) | 55.2-67.8 N.m (40-50 lb.ft) |
| Shaft end vanes | 12 vanes and inserts |
| Cover end vanes | 10 vanes and inserts |
| Fluid cleanliness | ISO 16/13 or cleaner. OFP, OFR and OFRS series filters recommended |
- Shaft seal: assemble with the spring loaded sealing member toward the bearing. Seals must be completely wetted with oil before assembly.
- Sealing ring 419673: install into the body first, then install the cartridge kit. Doing it the other way round traps or cuts the ring.
Download the Service Data PDFs
- ⇩ Vickers 2520V Double Vane Pump Parts Catalog PDF
- ⇩ Vickers 2520VQ Parts Catalog PDF (I-3166-S)
- ⇩ Vickers 2520VQ with V10 Section PDF (M-2492-S)
How to Rebuild a Vickers 2520V Double Vane Pump
A 2520V is two vane pumps sharing one shaft and one housing, so treat it as two cartridge jobs done in sequence. The shaft end is a 25V section with 12 vanes and the cover end is a 20V section with 10, and their cartridge kits are not interchangeable. Work out which end has failed before you order parts: very often only one has. Budget three to four hours for a full double rebuild.
Step 1: Identify Which Section Failed
Isolate each outlet and check pressure and flow end by end. A weak cover end with a healthy shaft end is common, because the two sections rarely see the same duty. If the case oil carries metal, rebuild both ends, since the sections share a housing and debris migrates between them.
Step 2: Clean, Drain and Mark
Wash the outside of the pump before anything comes apart and drain the remaining oil. Read the drained oil: bronze glitter points to a cartridge or bearing, steel points to the shaft or a rotor. Scribe the cover to housing relationship and both port positions before undoing anything, because a 2520V can be reassembled clocked wrong.
Step 3: Remove the Cover and Cover End Cartridge
Remove the four 1296 cover bolts evenly in a crossing pattern and lift the cover straight off. Withdraw the cover end cartridge as an assembly: inlet plate, cam ring, rotor with its 10 vanes and inserts, and outlet plate 584382. Note which face of the cam ring pointed toward the cover, and check the two 158465 locating pins have not stayed in the cover.
Step 4: Remove the Shaft End Cartridge
Undo the four 38523 bolts and separate the body from the housing. Withdraw the shaft end cartridge: inlet plate 591016, cam ring, rotor 584618 with its 12 vanes and inserts, and outlet plate 588690. Its locating pins are 229662. Keep the two cartridges separate and labelled; the vane kits look similar but are 10 vane and 12 vane sets.
Step 5: Shaft, Bearing and Seal
Remove retaining rings 120128 and 191400 and press the shaft out from the drive end. Identify your shaft against the table above. Inspect the shaft seal running surface for a wear groove, since a grooved shaft will leak straight through a new seal. Replace bearing 1705 and shaft seal 394976 as a matter of course on a full rebuild.
Step 6: Inspect and Decide, End by End
- Cam rings: look for a wear step at the two lift zones on each ring. Any ridge you can feel with a fingernail condemns that whole cartridge kit.
- Rotor slots: check for bell mouthing at the outer edge, which lets the vanes cock and chatter.
- Vanes and inserts: chipped or rounded leading edges mean that section has been running cavitated. Fix the inlet or it will happen again.
- Side plates: scoring or bronze pickup on the running faces condemns them.
- Housing and body bores: check for fretting where each cartridge locates, and for damaged seats for sealing rings 419672 and 419673.
Step 7: Reassemble, Torque and Run In
- Fit complete new cartridge kits. Never mix a new cam ring with old vanes; they wear as a matched set.
- Install sealing ring 419673 into the body first, then fit the shaft end cartridge kit. Same order for 419672 at the cover end.
- Fit all new seals from kit 922856, or 919303 on an F3 build, lubricated with clean hydraulic oil rather than grease.
- Fit shaft seal 394976 with the spring loaded member toward the bearing, completely wetted with oil, using a proper seal driver.
- Confirm the locating pins are seated at both ends before the covers go on.
- Prefill both sections with clean oil, then torque the four 38523 bolts to 88.1-101.7 N.m (65-75 lb.ft) and the four 1296 cover bolts to 55.2-67.8 N.m (40-50 lb.ft), both evenly in a crossing pattern.
- Turn the shaft by hand; it should rotate smoothly. Start unloaded at low speed, bleed both circuits, and load each end separately to confirm pressure and flow before returning the machine to work.
Common 2520V Faults and the Parts That Fix Them
- One outlet weak, the other fine: that section's cartridge kit only. Rebuild it and check the inlet.
- Whining or chattering under load: worn cam ring and vanes, or a restricted inlet. Check the inlet first.
- Oil weeping at the shaft: worn shaft seal 394976, or a grooved shaft if the leak returns quickly.
- Leak between body and housing after rebuild: sealing ring 419673 fitted after the cartridge instead of before it.
- Metal in the case: rebuild both ends, the housing is shared.
- Repeat cartridge failure: almost always contamination or cavitation. The drawing calls for ISO 16/13 or cleaner.
Vickers 2520V Specifications
- Type: Fixed displacement double (tandem) balanced vane pump
- Sections: 25V shaft end plus 20V cover end on a common shaft
- Vanes: 12 at the shaft end, 10 at the cover end
- Shaft end bolt torque: 88.1-101.7 N.m (65-75 lb.ft), 4 off part 38523
- Cover end bolt torque: 55.2-67.8 N.m (40-50 lb.ft), 4 off part 1296
- Seal kit: 922856, or 919303 for F3 builds
- Required fluid cleanliness: ISO 16/13 or cleaner
- Compatible brands: Vickers, Eaton Vickers, Danfoss legacy
- Applications: Machine tools, industrial presses, injection molding, mobile hydraulics
Shop OEM or Aftermarket Equivalent 2520V Replacement Parts
- Vickers 2520VQ Tandem Pump Parts & Seal Kits
- Vickers 25V Vane Pump Parts & Seal Kits
- Vickers 20V Vane Pump Parts & Seal Kits
- Vickers V10 Vane Pump Parts & Seal Kits
- Vickers Vane Pump Seal Kits
- All Eaton Vickers Hydraulic Parts
Frequently Asked Questions
How do you rebuild a Vickers 2520V double vane pump?
Work out which section failed by checking pressure and flow at each outlet, then scribe the clocking, remove the four 1296 cover bolts and withdraw the cover end cartridge, undo the four 38523 bolts and withdraw the shaft end cartridge, press out the shaft and replace bearing 1705 and shaft seal 394976. Fit complete new cartridge kits and seal kit 922856, installing sealing ring 419673 into the body before the cartridge, then torque the 38523 bolts to 88.1-101.7 N.m and the 1296 bolts to 55.2-67.8 N.m and run each circuit in separately.
What is the bolt torque on a Vickers 2520V?
There are two figures. The four 38523 bolts at the shaft end torque to 88.1 to 101.7 N.m, which is 65 to 75 lb.ft. The four 1296 bolts at the cover end torque to 55.2 to 67.8 N.m, which is 40 to 50 lb.ft. Both are tightened evenly in a crossing pattern.
What seal kit fits a Vickers 2520V?
Seal kit 922856 for a standard build, or 919303 for the F3 equivalent. The F3 cartridge kits are listed separately in the tables above, so check whether your pump is an F3 build before ordering either the seal kit or the cartridges.
Are the two cartridge kits in a 2520V the same?
No. The shaft end is a 25V section with a 12 vane cartridge and the cover end is a 20V section with a 10 vane cartridge. They are sized independently by the displacement codes in your model number, so you need both tables above to order correctly.
Do I have to rebuild both ends of a 2520V?
Not if the failure is confined to one section and the case oil is clean. If the oil carries metal, rebuild both, because the two sections share a housing and debris migrates between them.
Related Catalogs
- Vickers 3520V / 3525V Double Pump Catalog
- Vickers 4520VQ to 4545VQ Double Pump Catalog
- Vickers 20V Vane Pump Catalog
- Vickers 25V / 25VQ / 30V / 30VQ / 35VQ Catalog
- All Vickers Rebuild Guides
- How to Identify a Vickers Hydraulic Pump
- All Vickers / Eaton Hydraulic Parts
Need help finding the right parts? Contact us at info@restopower.com or call (810) 882-1171 and we will confirm fitment the same day.