ORRIN
Service guide ORR-SG-4810_C02 · 03/2026
Stock photo, for illustration.
Contents
ED-48 075 4 F
Part view
Spin it. Tap a number.
This box stands in for the live 3D view until the demo twin is published. Nothing is loading.
The model follows the steps. Tap a number to see the part and its step.
Service · ED-48 · Three-phase induction motors
Visual service checks
Six steps for the ED-48 three-phase induction motor.
Document ORR-SG-4810_C02
Issued 03/2026
Applies to ED-48 075 4 F
Select a step, or tap a marker on the motor, and the camera moves to the part. The product and the steps are fictional. Do not use this guide to service a real motor.
Warning
Switch off the supply at its source and lock it out before any work. Confirm the motor is dead and has stopped turning. This guide covers visual checks only.
1
Check the terminal box and cable glands
Marker 2 · Terminal box
Open the terminal box only when the supply is confirmed dead. Check the cable glands for cracks or a loose fit, the cable sheaths for damage and the cover for a flat, even seat. Replace anything damaged before closing the box.
2
Check the drive-end shield and its bolts
Marker 3 · Drive-end shield
Look at the drive-end shield and its bolts. Every bolt should be present and snug, with no cracks in the shield. Tighten loose bolts to the value on the service data sheet.1
3
Check the shaft opening
Marker 4 · Shaft opening
Check the shaft opening for dirt, debris or damage around its edge. Wipe it with a dry cloth. If you see damage, stop and report it before the motor runs again.
4
Check the mounting feet
Marker 5 · Mounting feet
Check that every mounting foot sits flat on the base and every bolt is snug. A rocking foot or a missing bolt needs correcting before the motor runs.
5
Clean the cooling fins
Marker 6 · Finned frame
Brush dirt and dust from between the cooling fins with a dry brush. Blocked fins hold heat in. Do not use water on a motor you have opened.
6
Check the rear cover and restart
Marker 7 · Rear cover
Check the smooth rear cover for dents or cracks. Refit every cover, then remove your lock and restart by your normal procedure.
A. Type designation
ED–48 075 4 F
| Code | Meaning |
|---|---|
| ED | Series: three-phase induction motor |
| 48 | Frame size (Orrin’s own code) |
| 075 | Rated power in tenths of a kW, 7.5 kW |
| 4 | Number of poles |
| F | Mounting: foot (F), flange (B) |
B. Technical data
| Type | Three-phase induction, 4 pole |
|---|---|
| Rated power | 7.5 kW at 400 V, 50 Hz |
| Rated speed | 1,450 rpm |
| Rated torque | 49 N·m |
| Frame | Finned cast iron, foot mounted |
| Mass | 62 kg |
1 Bolt tightening values are in the service data sheet ORR-DS-4810_B.
Concept product. Fictional specifications.
C. Revisions
| Rev. | Date | Change |
|---|---|---|
| C02 | 03/2026 | Step 5: no water on an opened motor |
| C01 | 02/2026 | Step 2: bolt values moved to the data sheet |
| B00 | 11/2025 | Steps renumbered, type designation added |
| A00 | 09/2025 | First issue |
Documents
| Service guide (this page) | ORR-SG-4810_C02 |
| Service data sheet | ORR-DS-4810_B |
Orrin Antriebe, concept company
Heilbronn, Germany. Fictional company.
Concept brand. Fictional company, demo for DITTO by Grey State Development.
Model: Electric Motor (high poly) by Scarecrow_original, licensed under CC BY 4.0. Changes: material colors set.