Manual Lego set 42121 Technic Heavy duty excavator

Need building instructions for your Lego set 42121 Technic Heavy duty excavator? Below you can view and download the PDF building instructions for free. This product currently has 10 frequently asked questions, 2 comments and has 42 votes with an average product rating of 81/100. If this are not the building instructions you want, please contact us.

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Manual

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Here you can share what you think about the Lego set 42121 Technic Heavy duty excavator. If you have a question, first carefully read the manual. Requesting a manual can be done by using our contact form.

gré van lith 29-04-2022
I bought my son the number 42121, only there is a description to make, namely, of the excavator. Erik would also like to make the other model of 42141, only printing it out is 129 pages, I'm not going to do that. Can I get a description from you, for example a booklet just like with the excavator.

reply | This was helpful (0) (Translated by Google)
Laure Massonnat 08-06-2022
Hello, I'm stuck at assembly 21, book 1, the arm slider, doesn't want to connect, part number 1 too big?

reply | This was helpful (0) (Translated by Google)

More about this manual

We understand that it’s nice to have a paper manual for your Lego set 42121 Technic Heavy duty excavator. You can always download the manual from our website and print it yourself. If you would like to have an original manual, we recommend you contact Lego. They might be able to provide an original manual. Are you looking for the manual of your Lego set 42121 Technic Heavy duty excavator in a different language? Choose your preferred language on our homepage and search for the model number to see if we have it available.

Specifications

Brand Lego
Model set 42121 Technic Heavy duty excavator
Category
File type PDF
File size 51.37 MB

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Frequently Asked Questions about Lego set 42121 Technic Heavy duty excavator

Our support team searches for useful product information and answers to frequently asked questions. If you find an inaccuracy in our frequently asked questions, please let us know by using our contact form.

There is a Lego brick missing from my set, where can I order a spare one? Verified

Lego has a service where you can order separate bricks or contact them when a brick is missing from your set. Have a look at their website for more information.

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How can I prevent my Lego toys from discolouring? Verified

The two biggest contributers to the discolouring of the plastic of Lego toys are long term exposure to sunlight and cigarette smoke. Try to minimise these when storing your Playmobil.

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What is the best way to clean my Lego bricks? Verified

Lego advises to clean the bricks by hand with some water (no warmer than 40°C) and a mild detergent. Never place the bricks in a washing machine or dishwasher. Let the bricks air-dry afterwards. Electric parts can only be cleaned with dry cloth.

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After I build a new Lego set I always have a few small pieces left. Did I forget to use them? Verified

No, many new Lego sets provide spares for the smaller pieces.

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What is the best way to apply stickers on Lego? Verified

To be able to reposition stickers it's a good idea to apply some glass cleaner on the location you want to put the sticker. When the sticker is in right spot, let it dry and it will stick.

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Where can I find a part list of my Lego set? Verified

Many modern Lego instructions include a part list at the end of the booklet. In the case of multiple booklets the list might be found in the middle of the PDF.

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Can Lego and Duplo bricks be used in combination with each other? Verified

Yes, Lego and Duplo bricks are compatible. Lego bricks fit on the Duplo bricks with the hollow studs. Duplo bricks fit best on larger Lego bricks and could come loose form smaller Lego bricks.

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From what age is Lego suited to play with? Verified

Most Lego sets are suited to play with from age 4 and up, because of the small parts they include. The special Duplo theme is suited for children aged 1,5 and up. The recommended age is always mentioned on the box.

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Where can I find the instructions for the alternative model of my Lego Technic set? Verified

We have combined the instructions for the alternative models with those of the main model. Scroll past the regular instructions to view the alternative model.

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Where can I find more information about my Lego set or a Lego part? Verified

If you want to know about a Lego set or part, such as the year it’s from, how many pieces a set has, replacement parts or in what other sets a certain piece can be found, than BrickLink.com is the best place. BrickLink.com is a website with nearly all details about Lego sets and parts and is a part of the Lego Group.

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Manual Lego set 42121 Technic Heavy duty excavator

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