Brand: BOSCH
Category: Lawn Mower
Document Type: Manual
Language: EN
Manual for Rotak 34 R | 37 R | 340 R | 370 R
Uploaded: Nov. 21, 2025, 7:35 p.m.
Manual Publish Date: 2016-01-21
- Safety First: Always read and understand the instructions, be familiar with controls, and keep instructions safe. Wear protective gloves, avoid operating barefoot or in open sandals. Keep children and pets away. Inspect the area for foreign objects and check the machine for damage before use.
- Operation: Mow only in daylight or good artificial light, avoid wet grass. Walk, never run. Do not operate with defective guards. Be cautious on slopes, mow across the face, not up and down. Stop blades when tilting the machine for transport or crossing non-grass surfaces. Always ensure hands are in the operating position before returning the machine to the ground. Switch on the motor with feet away from rotating parts. Never pick up or carry the machine while the motor is running.
- Electrical Safety: Keep supply cables away from blades. Switch off and remove the plug before adjusting, cleaning, or if the cable is damaged. Never touch the mains plug with wet hands.
- Maintenance: Keep nuts, bolts, and screws tight. Check grass catcher for wear. Examine machine and replace worn or damaged parts. Ensure replacement parts are Bosch approved.
Troubleshooting and error codes
| Problem | Possible Cause | Corrective Action |
|---|---|---|
| Motor refuses to start | Power turned off | Turn power on |
| Mains socket faulty | Use another socket | |
| Extension cable damaged | Inspect cable, replace if damaged | |
| Fuse faulty/blown | Replace fuse | |
| Grass too long | Increase height of cut and tilt garden product to reduce starting load | |
| Machine functions intermittently | Motor protector has activated | Allow motor to cool and increase height of cut |
| Extension cable damaged | Inspect cable, replace if damaged | |
| Internal wiring of garden product damaged | Contact Service Agent | |
| Motor protector has activated | Allow motor to cool and increase height of cut | |
| Garden product leaves ragged finish | Increase height of cut | |
| Motor labours | Cutting blade blunt | Replace the blade |
| Possible clogging | Check underneath the garden product and clear out as necessary (always wear gardening gloves) | |
| Blade fitted upside down | Refit blade correctly | |
| Blade not rotating while garden product switched on | Cutting blade obstructed | Switch off garden product Clear obstruction (always wear gardening gloves) |
| Excessive vibrations/noise | Blade nut/bolt loose | Tighten blade nut/bolt (17 Nm) |
| Blade nut/bolt loose | Tighten blade nut/bolt (17 Nm) | |
| Cutting blade damaged | Replace the blade |