Vickers TA1515 & TA1919 Tandem Piston Pumps: Parts Catalog, Service Data & Rebuild Guide

The Vickers TA series are mobile tandem units that drive a piston pump section and one or more vane pump sections from a single input shaft. TA1515 is the dual 15 frame build and TA1919 the dual 19 frame, and both are commonly supplied with a V10, V20 or V1010 vane section on the back. They are found on aerial lifts, refuse bodies, cranes and utility trucks. RestoPower supplies OEM or aftermarket equivalent seal kits, rotating groups, cartridge kits, shafts and valves for every TA combination.

Exploded View and Parts Diagrams

Vickers TA1515 tandem piston pump exploded view diagram with yoke, control pintle, shaft table and bolt torque values

Vickers TA1515V exploded view, front section. Note that both rotating groups in a TA1515 are the same.

Vickers TA1515 tandem pump rotating group kit table, valve plate sub-assembly 923768, seal kit 923769 and prefill check valve table by pressure rating

Vickers TA1515V rear section with the rotating group kit table, valve plate sub-assembly and prefill check valve selection table.

Vickers TA1919 with V20 vane section tandem pump exploded view diagram

Vickers TA1919 with a V20 vane section on the back. See the V-Series round vane pump guide for the vane cartridge detail.

TA1515 Key Kits

923769	Seal Kit, TA1515
923768	Valve Plate S/A Kit. Includes two 390219 bearings
923062	Rotating Group Kit
942425	Pintle Kit. Includes control pintle 424520 and key 474963
941887	Piston Kit, 9 pistons
343573	Shaft Seal

TA1515 Rotating Group Contents

All of the following are included in rotating group kit 923062.

Part	Number
Cylinder Block	260860
Swash Plate	239077
Piston Kit (9 pistons)	941887
Shoe Plate	275961
Spherical Washer	423324
Thrust Washer	241954
Spring	247294
Limiter Washer	245223
Retaining Ring	93509

Both rotating groups in a TA1515 are the same, so a full rebuild of both sections needs two of everything above.

TA1515 Shaft by Model Designation

Model Designation	Shaft	Key
TA1515V-1--12	397737	-
TA1515V-2--12	397736	58303

Rear shaft 395641 with bearing 14654, retaining ring 119982 and O-ring 175944. Front bearing 326805 with retaining rings 119982 and 120428, retainer 274382.

TA1515 Prefill Check Valve by Pressure Setting

Four required. Select by the pressure rating of your unit.

PSI	Check Valve S/A	PSI	Check Valve S/A
2000	323822	3750	404976
2500	323820	4000	317180
3000	339490	4500	318399
3250	322534	4600	424527
3500	407323	5000	374589

Fitting the wrong prefill check valve is a common cause of a TA that will not make its rated pressure after a rebuild. Confirm the rating stamped on your unit before ordering.

TA1515 Torque Values

These are the figures printed on the Eaton drawings above. For any fastener not listed, use the values in the service data PDF for your build.

Fastener	Torque
1306 Screw (2 req'd)	75-80 lb.ft
329776 Bolt (4 req'd)	42-45 lb.ft
1272 Screw (2 req'd)	42-45 lb.ft
584068 Screw (4 req'd)	50-55 lb.in

Other TA1515 parts on the drawings: housings 395645 and 392305, yoke 325689, gasket 317162, plate 347573 (2 req'd), dowel pin 167237 (4 req'd), short pintle 392290, bearings 12016 (2 req'd) and 390219 (2 req'd), sleeve 389355 (2 req'd), coupling 389354, poppet 389359, spring 402662, plugs 181792, 380649, 307354, 393849 and 424519.

Download PDF Catalogs

TA15 and TA1515 combinations

TA19 and TA1919 combinations

How to Rebuild a Vickers TA1515 or TA1919 Tandem Pump

A TA unit is really two or three pumps sharing one shaft, so treat it as separate rebuilds carried out in sequence. Most TA failures are confined to one section, and identifying which section has failed before teardown saves a great deal of time and parts.

First: Work Out Which Section Failed

Isolate each circuit and check pressure and flow section by section. A weak piston section with a healthy vane section behind it is the common pattern, because the piston section carries the higher duty. If the shaft has seized or the case is full of debris, rebuild every section, since debris migrates through the shared case.

Before You Start

Steam clean the outside and drain the case. Note whether the debris is bronze (vane or bearing), steel (rotating group) or aluminium.
Mark the relative orientation of each section and the port positions before separating them. TA stacks can be reassembled clocked wrong.
Lay the sections out in the order they came off. Cover ends and cartridges are not interchangeable between sections.
Note the pressure rating stamped on the unit. You need it to order the correct prefill check valves.

Step 1: Separate the Sections

Remove the through bolts evenly and lift the rear section straight back off the drive coupling (389354 on the TA1515). Support each section as it comes free; the coupling and drive splines will drop if unsupported. Keep each section with its own hardware.

Step 2: Rebuild the Vane Section

Withdraw the cartridge kit as an assembly. Note which face of the cam ring points to the cover.
Inspect the cam ring for a wear step at the two lift zones. Any ridge you can feel means the whole cartridge kit is replaced, not just the vanes.
Check the rotor slots for bell mouthing and the vanes for chipped edges.
Fit a complete new cartridge kit. Vanes, rotor, ring and plates wear as a matched set and mixing old and new shortens the rebuild badly.

Step 3: Rebuild the Piston Section

Remove the end cap evenly and note the valve plate orientation before it moves. A reversed valve plate destroys the pump in minutes. On the TA1515 the valve plate comes as sub-assembly 923768 complete with its two 390219 bearings.
Slide out the rotating group, keeping the nine pistons in their original bores.
Inspect the cylinder block face, valve plate kidney ports and piston shoes. Replace shoes as a set, never singly, or fit rotating group kit 923062.
Check the yoke (325689) and the saddle surfaces for fretting.
Remember both TA1515 rotating groups are identical, so a full rebuild needs two of every rotating group part.

Step 4: Shaft, Bearings and Couplings

Inspect the drive splines between sections. Worn or twisted splines are common on TA units that have run with a noisy inlet, and a worn coupling will chew a new section quickly. Identify your shaft from the table above: a TA1515V-1 build takes shaft 397737 and a TA1515V-2 takes 397736 with key 58303. Replace shaft seal 343573 and both shaft bearings as standard, and check the shaft seal running surface for a groove.

Step 5: Reassemble and Torque

Fit all new seals and O-rings from seal kit 923769, lubricated with clean hydraulic oil.
Install each cartridge kit the correct way round and confirm the four dowel pins (167237) seat.
Reassemble the stack in the original order and clocking, engaging the couplings squarely.
Fit the correct prefill check valves for your pressure rating from the table above. Four are required.
Torque the two 1306 screws to 75-80 lb.ft, the four 329776 bolts and two 1272 screws to 42-45 lb.ft, and the four 584068 screws to 50-55 lb.in.
Prefill every section with clean oil before the last cover goes on.

Step 6: Test and Run In

Turn the shaft by hand; it should feel smooth with all sections fitted. Start at low speed with the system unloaded, bleed each circuit, then load each section separately and confirm pressure and flow before returning the machine to work. If a section will not make its rated pressure, check the prefill check valves before suspecting the rotating group.

Step 7: Confirm Each Circuit Under Load

Run each circuit at working pressure in turn and watch case drain flow and case temperature. A TA that runs cool on one circuit and hot on another has an internal leak in the hot section. Confirm both before the machine goes back to work, because a marginal section will fail again quickly under mobile duty cycles.

Common TA Faults

One circuit weak, the other fine: that section only. Rebuild it and inspect the coupling.
Will not make rated pressure after rebuild: wrong prefill check valves fitted. Match them to the pressure rating of the unit.
Whine under load: inlet restriction or aeration, usually shared across sections.
Metal in the case: rebuild every section, the case is shared.
Leak between sections: gasket 317162 or the interstage O-ring, both in the seal kit.
Oil weeping at the shaft: shaft seal 343573, or a grooved shaft if it returns quickly.

Vickers TA Specifications

Type: Tandem mobile pump, piston section plus one or more vane sections on a common shaft
Series: TA1515, TA1919, TA15, TA19, TA6, with V10, V20, V1010 and V2010 vane sections
Pistons: 9 per rotating group
Pressure ratings: 2000 to 5000 PSI depending on build, set by the prefill check valves
TA1515 seal kit: 923769
TA1515 rotating group kit: 923062 (both groups identical)
Compatible brands: Vickers, Eaton Vickers, Danfoss legacy
Applications: Aerial lifts, refuse bodies, cranes, utility trucks

Shop OEM or Aftermarket Equivalent TA Replacement Parts

Frequently Asked Questions

How do you rebuild a Vickers TA1515 tandem pump?

Work out which section failed first by checking pressure and flow circuit by circuit, then mark the clocking and separate the sections. Rebuild the vane section with a complete cartridge kit and the piston section with rotating group kit 923062 and valve plate sub-assembly 923768, keeping the nine pistons in their original bores. Replace shaft seal 343573 and both bearings, fit seal kit 923769 and the correct prefill check valves for your pressure rating, then torque the two 1306 screws to 75-80 lb.ft and the four 329776 bolts to 42-45 lb.ft and run each circuit in separately.

What seal kit fits a Vickers TA1515?

Seal kit 923769. The valve plate sub-assembly is a separate kit, 923768, and it includes the two 390219 bearings. The rotating group kit is 923062, and because both rotating groups in a TA1515 are the same you need two of them for a full rebuild.

Why will my TA1515 not make rated pressure after a rebuild?

Most often the wrong prefill check valves. Four are required and they are selected by the pressure rating of the unit, from 323822 at 2000 PSI up to 374589 at 5000 PSI. Check the rating stamped on your pump against the table on this page before suspecting the rotating group.

What is the difference between TA1515 and TA1919?

The numbers give the frame sizes of the two piston sections. TA1515 pairs two 15 frames, TA1919 pairs two 19 frames, so the TA1919 carries more displacement and duty.

Do I have to rebuild every section?

No, if the failure is confined to one section and the case oil is clean. If the case shows metal, rebuild everything, because the sections share a case and debris migrates between them.

Related Catalogs

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.