
Troubleshooting
IMER Pump Rotor and Stator Wear: Signs, Checks, Parts
Falling material flow or a BLOC message on an IMER Step-Up 120, Small 50 or Koine 4? What the manuals say to check, how to swap the pump, and the parts listed.
4 min read
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Tracker 1624 machine page →
IM R 75/23 DA Pro Lithium Lift, 75 ft Reach1128857From $177,100
IM R 75/23 DA Pro Gas Lift, 75 ft Reach1128855From $163,100
IM R 65/20 DA Pro Hybrid Lift, 65 ft Reach1128823From $152,100
IM R 65/20 DA Pro Lithium Lift, 65 ft Reach1128803From $148,100
IM R 58/18 SA Pro Hybrid Lift, 58 ft Reach1128825From $138,100
IM R 65/20 DA Pro Diesel Lift, 65 ft Reach1128790From $137,100
01Where it fits
1107030
$249.00In stock
3223388
$505.00In stock
3223609
$10.00In stock
$65.00In stock
3223389
$39.00In stock
$106.00In stock
02Fits
Mixing Chamber
Drawing 2 · Ref 21Serial 1106004-1106320
Self-Levelling Kit (1107091)
Drawing 9 · Ref 2Machine Structure
Drawing 1 · Ref 11-AECO Monophase D.8-1.5
| Machine | Assembly | Shown in |
|---|---|---|
| IMER Koine 4 | Mixing Chamber | Drawing 2 · Ref 21Serial 1106004-1106320 |
| IMER Koine 4 | Self-Levelling Kit (1107091) | Drawing 9 · Ref 2 |
| IMER Small 50 | Machine Structure | Drawing 1 · Ref 11-AECO Monophase D.8-1.5 |
From IMER parts books 3223425 r18 (2018-09), 3225890 r11 (2018-09).
03Where it sits
| Ref | Part no. | Name | Price |
|---|---|---|---|
| 1 | 3223370 | Mixing Chamber | In stock, $1,195.00 |
| 1 | 3236067 | Mixing ChamberSerial 1106004 | Request price |
| 2 | 3228424 | Motor SupportFrom serial number 3007324 | Request price |
| 3 | 3228425 | Clamp ProtectionFrom serial number 3007324; Italian: flanged tube | Request price |
| 4 | 3223374 | Chamber Pin | In stock, $142.00 |
| 5 | 3224955 | Clamping Cones | In stock, $69.00 |
| 6 | 3223720 | Tie-Rod | In stock, $108.00 |
| 7 | 1107542 | Mixer | In stock, $209.00 |
| 8 | 3223428 | Quick Connector 1" F. | In stock, $19.00 |
| 9 | 3223697 | Quick Coupling Gasket | In stock, $10.00 |
| 10 | 3224628 | Split Pin D. 4.5 | In stock, $10.00 |
| 11 | 3223717 | Safety Handle | In stock, $234.00 |
| 12 | 2223806 | Nut M16UNI 5588 | In stock, $10.00 |
| 13 | 2224640 | Washer D.16x33x3 | In stock, $10.00 |
| 14 | 2223807 | Nut M16UNI 5589 | In stock, $10.00 |
| 15 | 3223429 | Quick Connector Cap | In stock, $24.00 |
| 16 | 3223352 | Terminal | In stock, $161.00 |
| 17 | 3228422 | Mixer Gearmotor400V 50Hz, serial 1106005-1106320; from serial number 3007324 | In stock, $4,031.00 |
| 17 | 3231671 | Mixer Gearmotor220V-400V 60Hz, serial 1106003-1106004-1106112 | Request price |
| 18 | 3228390 | Sensor | In stock, $281.00 |
| 19 | 3236115 | Sensor Support | In stock, $28.00 |
| 20 | 1107020 | Stator D.6-3 DX CB63Serial 1106003-1106005 | Request price |
| 20 | 1107030 | Stator D.8-1.5 DX ECOSerial 1106004-1106320 | In stock, $249.00 |
| 21 | 1107021 | Rotor D.6-3 DXSerial 1106003-1106005 | Request price |
| 21 | 1107031 | Rotor D.8-1.5 DX ECOSerial 1106004-1106320 | In stock, $279.00 |
| 22 | 3223388 | ManifoldXXXXX R-1106004-1106320 | In stock, $505.00 |
| 23 | 3223703 | Cam Coupling DN35 M. - 1 1/4" M. | Request price |
| 24 | 3223392 | Membrane | In stock, $29.00 |
| 25 | 3223391 | Spacer | In stock, $29.00 |
| 26 | 3224173 | Reduction 1 1/2" M. - 1/2" F. | In stock, $65.00 |
| 27 | 3223609 | Reduction 1/2" M. - 1/4" F. | In stock, $10.00 |
| 28 | 3223389 | Gauge Protection | In stock, $39.00 |
| 29 | 3223689 | Gauge D.63 0-100 Bar 1/4" | In stock, $106.00 |
| 30 | 3223690 | Rubber Cover | In stock, $20.00 |
| 31 | 3223995 | Gasket 1.6 m | In stock, $10.00 |
| 32 | 3228574 | Power Cable with Plug | In stock, $292.00 |
04Specifications
The green D8-1.5 rotor is a genuine IMER part, part number 1107031. The IMER Small 50 parts book lists it in the Machine Structure table (ref. 11-A, ECO Monophase D.8-1.5). The Koine 4 parts book lists it in the Mixing Chamber table (ref. 21) for serial numbers 1106004 to 1106320 and in Self-Levelling Kit 1107091. The IMER 2025 catalogue lists the D8-1.5 rotor, part 1107031, on the Koine 3.1 applications page and notes that it requires manifold part 3223416.
Use it together with stator 1107030. Our store lists these applications: pumping of grouts and self-leveling underlayments, spraying fireproofing, spraying mortar and stucco base coat (1/8 in or more of build-up), and waterproofing stucco and finish coat.
05Used with
06Documents
3223425 · r18 · 2018-09 · page 69
3225890 · r11 · 2018-09 · page 45
Guides

Troubleshooting
Falling material flow or a BLOC message on an IMER Step-Up 120, Small 50 or Koine 4? What the manuals say to check, how to swap the pump, and the parts listed.
4 min read

Maintenance
End-of-shift cleaning, freeze draining and storage steps from the IMER manuals for the Mix 750, Mix 120 Plus, Step-Up 120, Small 50, Koine 4 and more.
5 min read
Answers
07Shipping & returns
Leaves us in 1–3 business days; ground delivery usually takes 5–7 business days.
On orders over $1,500 to commercial addresses in the contiguous US.
30-day returns on unused items with a return authorization.
08Questions
The IMER parts books list it for the Small 50 (Machine Structure, ref. 11-A) and the Koine 4 (Mixing Chamber for serial numbers 1106004 to 1106320, and Self-Levelling Kit 1107091). The IMER 2025 catalogue also lists it for the Koine 3.1, where it requires manifold part 3223416.
Use it together with stator 1107030.
Fit check