Eddie spent 35 years in the automotive business with Honda. That is one ASE Certified understand Technician and also has bruised knuckles come prove it.

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What Is the USPS 941 Automotive Bench Test?

If you apply for an automotive mechanic's place at USPS, you'll be compelled to take it the 941 Bench test if you pass the 943/944/945 vehicle Maintenance Tests. Every one of these test are part of working on the USPS distribution trucks i beg your pardon are based upon the chassis the the 1982 Chevy S-10 Blazer.

If you know just how to work on this kind of vehicle, you have actually a deep understanding of auto mechanics and safe practices, and also you have an excellent safety inspection capabilities, you will have actually no difficulty passing these tests. The vital is to take her time. They aren't feather for human being who deserve to do things easily without reading manuals—they're looking for world who have the right to do points slowly and carefully while consulting manuals.


I take it the first three exams (the 943/944/945 car Maintenance Tests) all in one shoot via the USPS exam site. This tests are computer-based, and you will require to discover a test website close to your home. The 941 Bench Exam, however, is done at the USPS maintain facility, and it's a hand-operated test. You'll require to understand the five systems provided below on these vehicles to pass.


What Is the Grumman LLV?

The complying with is one excerpt indigenous the Wikipedia entry for the Grumman LLV.

"The Grumman LLV was particularly designed for the United says Postal Service; Grumman winner the contract to create it. The main style points that the auto in contract competition were serviceability, handling in border areas, and overall economic operation. As its name suggests, the Grumman LLV is easily qualified of a lengthy life, possibly approaching 20 years of operation. The lifespan specified by the U.S. Postal business was 24 years, but in 2009 this was extended to 30 years. The majority of LLVs have actually been ~ above the road for end 27 years. The body and final assembly are by Grumman, and also the chassis (based ~ above the 1982 Chevrolet S-10 Blazer) is do by basic Motors, with the powerplant (2.5L I-4 TBI 'Iron Duke' and, in later production, basic Motors 2.2L I-4 stole block/aluminum head engine), instrument cluster and also front suspension comparable to those provided in the Chevrolet S-10 pickup and also S-10 Blazer sport utility vehicle. "


For more information, visit the vehicle's Wikipedia page directly.

What's ~ above the USPS Mechanic position Exam?

There is time allotted for you to read the instructions on the fix order, gather any tools you'll have to perform the objective, and also read the LLV repair hand-operated to prepare for the task. Each operation is timed, and also you will certainly be watched during each task. Take her time, and also don't worry around the clock. You'll have actually plenty the time, so just work confidently and also safely.


The instructor will be taking notes on how well you inspect the components, what you usage for tools, and what questions you asking. Ns recommend the you questioning as plenty of questions as you should so you know the objective. I also recommend utilizing the books and written product as needed. They desire to know if friend know exactly how to look up information and also use repair manuals. This job is not computer-based, and I'm sure you'll it is in hard-pressed come find any repair videos ~ above YouTube for these details vehicles.

These trucks room old and rusty in my part of the country, and the parts/components didn't come apart really easily, therefore I definitely struggled. It's far better to carry out a thorough investigate of the system and complete half the job than that is come rush with a job to complete on time and forget to perform a complete safety inspection.


Below, the five tasks ~ above the exam are discussed in an ext detail, and also relevant(ish) videos space included.

Task 1: prior Caliper Replacement

The an initial task will certainly be experimentation you top top your capacity to remove a front caliper, inspect it for any loose, damaged, worn, or leaking parts, and also reinstall it, friend will should measure the rotor thickness through a hands-on micrometer so you may want come freshen increase your capacity to read a non-digital micrometer.


Task 2: Brake shoes Replacement

The inspector will have you remove the behind drum, check the shoes, disassemble the shoes, springs, and also adjusters, climate reinstall the shoes. You will not must measure the drums, however don't forget to examine the north for warm cracks and also pitting, this trucks are old. Also, don't forget to examine the brake lines for leaks and also the axle seal inside and also outside the drum for leaks.


Task 3: Snap-On AVR Battery Test

You will should know exactly how to attach battery jumper cables correctly, no a jump box, test the alternator, starter attract test, and also battery test making use of the snap-on AVR. Girlfriend can discover demonstrations top top YouTube on just how to use this an equipment but it might not it is in the same as the USPS machine. The videos below include demonstrations for the snap-on ARV and jumper cables.


Task 4: Electrical concern Diagnosis

There will be an electrical worry with the truck, and also it will certainly most likely be pretty an easy so ns recommend girlfriend know exactly how to use a test light and also how to check out the hand-operated troubleshooting chart.

Task 5: Distributor reinstallation and also Engine Timing

The inspector will have you eliminate the distributor from the block, then they will certainly crank the engine over as soon as the distributor is removed. You'll require to uncover TDC and also reinstall the distributor, start the engine, and time the engine v a timing light.

Take your time act this and mark the distributor base v a scribe, climate scribe the block. I made the wrong of scribing the distributor hold-down plate and also found myself SOL as soon as I installed the distributor. I had run out of time top top this task and had never ever finished. Ns couldn't find the precise distributor replacement video clip for the 2.2L or 2.5L engines, however the video below should aid explain the process.


My finest Advice

The ideal advice ns can give you is to take your time and also to check out the LLV hand-operated on each operation—even if girlfriend think you know what you're doing. The inspector will certainly grade girlfriend on exactly how well you follow directions, and also if you deserve to use the LLV hand-operated as a reference/guide. Castle are looking for mechanics who have a heavy understanding and also acknowledge the fundamentals of automotive mechanics. They want their mail carrier to drive for sure vehicles v minimal breakdowns.


So, exactly how did I carry out on my 941 Bench Exam? ns failed miserably. The inspector called me to take my time—it's not about speed or even finishing the procedure—they desire to understand if you can perform the task without killing you yourself or harming anyone else that may be working next to you. You'll be functioning on the exact same vehicles day-in and day-out, therefore you'll get used come the problems and issues that room common and also the project will become really repetitive. Eventually, you'll have the ability to work on the Grumman with your eye closed.

Let me know if girlfriend have any questions. I may have actually missed something here, but it all boils under to knowing everything I stated above, being smart around how you occupational on vehicles, taking your time, and also being safe.

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This article is accurate and also true come the finest of the author’s knowledge. Content is because that informational or entertainment purposes only and also does not substitute for an individual counsel or skilled advice in business, financial, legal, or technological matters.