FAQ Injection pump Zetor UR1 - maintenance and adjustment

[Joachim]

Injection pump Zetor UR1 - maintenance and adjustment

Over the years, a large number of continually improved and modified injection pumps have been installed for the various Zetor types. This incomplete entry is intended to deal with the injection pump PP3A8K315g or PP4A8K315g, for example. were installed in the Zetor 5011 - Zetor 7045



Image: Injection pump mounted on the Zetor 5001 engine (Zetor 5011)

Bosch - old video

Go to: https://youtu.be/PEtA_H64loE?t=4m29s

External structure of the injection pump:




Internal structure of the injection pump:
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Technical data:
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Setting the injection pumps:
Attention!
The adjustment options shown below should only be carried out by a specialist workshop. There is a clear risk of damage to the injection pump and the engine. Adjusting them can invalidate your operating license and risk losing your insurance cover! All information without guarantee!

Injection pumps with manual cold start device: (up to Zetor 5011 - 7045)​

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Adjusting the fuel delivery rate​

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Injection pumps with automatic cold start device: (Zetor 5211 and newer)​

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Adjust the fuel delivery quantity​

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Remove the cover, the top of 3 or 4 screw connections should be secured with a 10 mm wrench size. Loosen these and then adjust them with a flat-head screwdriver as follows:​

- turn clockwise / screw in = more fuel​

- turn anti-clockwise / screw out = less fuel​

Depending on the model, 0.5 to 1 turn - too much will only lead to black smoke and thus to unused diesel. Then don't forget to re-secure the union nut!​

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Adjust the injection timing​

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Remove the cover, you will see 2 larger screw connections with a 22mm wrench size. Loosen the upper one and then adjust it with a hook wrench:​

- clockwise = inject earlier​

- anti-clockwise = inject later​

Adjust by 0.5-1.5 turns depending on the model. If there is more fuel at the same time (see fuel quantity setting), set it clockwise a little earlier and if there is less, set it anti-clockwise a little later.​

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Set the start of delivery - see link:​

https://www.zetor-forum.de/ressourcen/einspritzpumpe-foerderbeginn-einstellen-ur1.327/

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Injection pump on a test bench:​

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Go to: https://www.youtube.com/watch?v=Uu1xwvYJdS8​

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List of certified official MOTORPAL repair shops: (A-Z)​

• https://www.motorpal.cz
  Original manufacturer of most Zetor injection pumps, also accepts orders from private customers. Before sending, contact us by email (CZ, EN, DE) and only then send it in.
  

Also:​

• https://www.agm-agromotor.cz
  Write by email (CZ, EN, DE) and describe the problem, then send it in after consultation. Prices vary depending on the effort involved, from 60 euros to 700 euros, depending on the pump type and damage. Quality of work is good, have been doing this for decades.

 

[jcataclism]

AWESOME!