Description

Terex TS24D Operators Manual

You’ve got a Terex TS24D scraper on your job site, and the operator manual that came with it is either missing or so oil-soaked you can’t read the warning decals. That’s a problem. I’ve seen guys skip the pre-start check because they figured they knew the machine – then spent a week waiting on a new transmission because they missed the hydraulic system controls on page 3-36. This is the factory Operators Manual, part number 15272906, straight from Terex Equipment Limited, Motherwell, Scotland. 158 pages of what you need to run the TS24D without breaking it or yourself.

The TS24D is a twin-engine scraper with a tractor and scraper unit. The manual starts with a California Proposition 65 warning (diesel exhaust) and a spare parts statement telling you to use genuine parts – something the aftermarket copies never print. Then it goes into safety: general, twin hitch safety (page 2-3), preventing fire hazards, mounting and dismounting, pre-starting, starting, operating, roading, lubrication, and a whole section on tyre explosion hazard. Page 2-13 covers that – not a joke when you’re dealing with earthmover tires.

If you need parts diagrams, grab the TEREX TS24D 1999 Parts Catalog to go with this. For other Terex machines, the Terex TA400 2012 Operators Manual – Factory Specs is available for heavy haul operations. And the Terex TA400 2012 Operators Manual – Factory Specs for Heavy Haul covers the articulated truck line.

Safety Precautions: Starting and Operation

Chapter 2 runs 12 pages on safety. It’s not filler. It tells you the specific risks of a twin hitch setup, how to avoid fire when fueling or servicing, and the correct way to mount and dismount (three points of contact – they hammer that). The pre-starting section on page 2-7 lists visual checks you do every shift. Don’t be the guy who skips that because you’re in a hurry. The starting procedure on that same page is for the tractor engine; scraper engine starting is covered later. They also cover roading – moving the scraper on public roads – with lights, brakes, and speed limits.

Controls and Operating: Braking, Retarder, Transmission

Chapter 3 is the bulk of the book – about 30 pages of controls. It covers the tractor and scraper instrument panels, indicator and warning lights, switches, optional heater and air conditioning, the air suspension seat, seat belt, and then machine controls. Braking gets its own section: service brake, park/emergency brake, and the retarder. The retarder is a big deal on these machines – it’s not just a brake, it’s a wear-saving system. Page 3-18 explains it. Then engine controls: electronic foot pedals and the DDEC III system description and operation (page 3-21). Steering, transmission (description and operation starting page 3-26), power-locking differential, hydraulic system controls, and the optional twin hitch control. The transmission section includes general operation – not a full rebuild guide, but enough to understand shift patterns and what to check if it’s acting up. If you want background on how a Manual Transmission works, the Wikipedia page is fine, but the TS24D uses a semi-automatic with a different logic – that’s why you need this manual.

Operating the Scraper: Pre-Starting and Engine Start

Chapter 4 takes you through a full shift: pre-starting inspection (visual and component checks for both tractor and scraper), engine operation, starting the engines (tractor page 4-8, scraper page 4-10), low ambient temperature starting, jumper cable starting (page 4-13 – important for when a battery is dead on a cold morning), pre-operating checks, brake function checks, driving and stopping, stopping the engines, and parking. If you’ve ever tried to jump-start a twin-engine machine without factory instructions, you know how easy it is to cross-connect and fry electronics. Page 4-13 gives the exact sequence.

Working the Scraper: Loading and Spreading Procedures

Chapter 5 is about actually cutting dirt. Self loading, push loading with a dozer, hauling, spreading, returning to the cut. They cover special materials: sand, coal, gravel, wet and sticky material. There’s a section on loading large objects (page 5-11). This isn’t a theory manual – it’s what you do with the bowl controls, how fast to travel during load, how to dump cleanly. The TS24D’s transmission is not your typical Manual Transmission; it’s a semi-automatic that works with the engine governor. Knowing the correct shift points keeps the driveline alive.

Source Validity: OEM Factory Print

This is not a reprint from a third party. It’s a digital scan of the original factory document printed in January 1999 (Ref No. OHE 763). The part number matches the Terex system. The aftermarket manuals I’ve seen leave out the twin hitch safety section and the California warning – both legally required if you’re operating in North America. If you rely on a generic document and get cited by OSHA or have an accident, good luck. The manual explicitly states: “It is only by using genuine parts that the technical requirements stipulated by the manufacturer can be maintained.” Same goes for the information.

Is this the genuine factory manual?

Yes – printed by Terex Equipment Limited, part number 15272906, January 1999. No aftermarket edits.

Does it include torque specs for assembly?

No – this is an operator manual focused on daily use and safety. Torque values for repairs are in the service manual.

Can I use this to remove and rebuild the transmission?

This operators manual gives you the controls and operating procedures for the transmission (starting page 3-26) but not internal rebuild steps. For overhaul, you need the Terex TS24D Service Manual. The strength here is safety: twin hitch precautions, tyre explosion avoidance, and proper starting sequences that prevent driveline damage.

Does it cover wiring diagrams?

No – this manual shows indicator lights and switches, but not full wiring diagrams. That’s separate service manual content.

You need this on the machine or in the shop tablet. The 158 pages cover what every operator should know before turning the key. Don’t guess – access the Factory Manual.