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Owned by Rowla

20-years HGV mechanic sharing real diagnostics, hidden faults and workshop secrets to help you fix issues faster, efficiently & avoid costly mistakes.

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10 contributions to Rowla-Tec HGV Diagnostics 🔧
Welcome to Rowla-Tec HGV Workshop Hub 🔧
Real-world HGV mechanic knowledge from 20 years in the trade. Built for apprentices and mechanics who want practical fault-finding, workshop tips, and lessons you don’t always get in college. No fluff — just real experience from the workshop floor. My name is Craig Rowland, please feel free to comment or message me what kind of issues you have and I will be more than happy to help at any hour of the day 🤙🏼
0 likes • 18d
@Harry Taylor 💪🏼 🔧
0 likes • 2d
@Neville Maxwell All content here will be concentrated on those categories mate, thank you for your comment 🤙🏼
DAF CF Tipper 8x4 Water bottles?
Found this tucked under the passengers seat and footwell on its 6 week safety inspection. Can anyone guess why there is so many water bottles in the cab? 🤦‍♂️🤣
DAF CF Tipper 8x4 Water bottles?
0 likes • 2d
@Neville Maxwell Turned out he had a coolant leak for some time, awaiting authorisation to replace the header tank, follow up post to come stay tuned brother 🤙🏼
⚠️ MAN TGS came in with a steering pull and crooked wheel… and the readings were WAY out 👀
Driver complaint:❌ Pulling while driving❌ Steering wheel sitting off-centre❌ Constant correction needed on the motorway Hooked up the new JOSAM camera alignment system and straight away the numbers told the story 📸 BEFORE:➡️ Left toe: +27.6mm➡️ Right toe: -18.9mm➡️ Steering box: -23.2 AFTER adjustment:✅ Total toe: +0.6mm✅ Steering box: +0.1✅ Wheel sitting straight again Swipe through the photos and tell me… 👇 Which way would YOU expect this truck to pull from those initial readings? 👇 Always interesting seeing how different techs read alignment data before even driving the vehicle.
⚠️ MAN TGS came in with a steering pull and crooked wheel… and the readings were WAY out 👀
0 likes • 13d
If you can work out which way this vehicle was pulling, can you work out which component to adjust to correct this? Let me know 🤙🏼
0 likes • 8d
@Harry Taylor Unfortunately not mate, positive toe means it’s toeing in. Negative toe= toeing out
Sound test! 🔊HGV Wheel Nuts
Which wheel nut is loose? Drop your answers in the comments 🤙🏼
Sound test! 🔊HGV Wheel Nuts
DAF LF Tracking Alignment Setup Using JOSAM Cam-Aligner
Just uploaded a quick 1-minute walkthrough showing how I set up tracking alignment on a DAF LF using the JOSAM Cam-Aligner system. This is the type of real workshop content I’ll be posting regularly inside the community: - HGV diagnostics - Wheel alignment - Axle setup - Fault finding - Real job walkthroughs Sometimes seeing the setup process is easier than reading about it, so I thought I’d record this one while it was in the workshop. https://youtube.com/shorts/EvuwWt7HwXg?si=BcPOog62L-prhxox
0 likes • 10d
Would you like to see longer detailed alignment videos in future, or keep them short and practical like this? Drop me a comment below 👇 🤙🏼
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Rowla Tec
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@craig-rowland-5422
HGV mechanic with 20 years experience. Real fault finding, diagnostics and workshop tips from the trade — no fluff, just practical fixes and advice.

Active 1d ago
Joined May 7, 2026
INTJ