Difficulty engaging all gears, engaging reverse gear and first gear with a grinding noise
The cause of the malfunction is
incomplete disengagement of the clutch (the clutch “drives”).
To troubleshoot
it is necessary to adjust the free play of the clutch release clutch.
Large force on the gear shift lever
Cause of malfunction
There may be contamination of the remote control rod supports (KAMAZ-4310), lack or thickening of lubricant.
To troubleshoot
It is necessary to wash the supports and fill them with fresh lubricant.
Shifting into second, third, fourth and fifth gears with a banging and grinding noise
The cause of the malfunction is
wear of the synchronizer cone rings, blocking the chamfers of the fingers and the carriage. Reduced effort to move the carriages out of the neutral position.
To troubleshoot
the synchronizer needs to be replaced.
Automatic gear shifting while the vehicle is moving
The causes of the malfunction may be:
– incomplete engagement of the gear due to a malfunction of the shift mechanism clamps, wear of the fork legs or nuts, loosening of the forks and levers, misalignment of the remote drive (KAMAZ);
– the secondary shaft spline lock does not work. It is necessary to troubleshoot the problem.
–
tighten the fastening, replace worn parts, adjust the control drive;
– replace the shaft and the corresponding synchronizer. Transmissions are not included
–
wear of parts and misalignment of the remote drive for controlling the gearbox (KAMAZ);
– the bearings of the secondary shaft gears are destroyed. It is necessary to troubleshoot the problem.
–
adjust the drive and replace worn parts, tighten fastenings;
– replace faulty parts. Increased noise during gearbox operation Causes of malfunction:
– increased wear or breakage of gear teeth. Destruction of gear bearings;
– destruction of shaft bearings.
To troubleshoot
faulty parts must be replaced.
Oil leak from gearbox Causes of malfunction:
– wear or loss of elasticity of the cuffs;
– increased pressure in the crankcase;
– violation of tightness along sealing surfaces. To troubleshoot the problem you must:
– tighten fasteners or replace gaskets.
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very necessary
The transmission of the ZF-16S151 model is mechanical, sixteen-speed, consisting of a four-speed main gearbox with a built-in two-stage divider located in front of the main box, and a two-stage planetary gearbox located behind the main box.
Rice. 3-66. Connection diagram for pneumatic control for the divider and multiplier: 1 – clutch reservoir; 2 – clutch pedal; 3 – gear shift lever; 4 – reverse sensor; 5 – valve for switching on the range multiplier; 6 – neutral sensor; 7 – sensor for switching on the low range of the range multiplier; 8 – range switching cylinder; 9 – first gear sensor; 10 – air distributor of the divider; 1 1 – sensor for switching on the low range of the divider; 12 – top gear engagement sensor; 13 – to the clutch slave cylinder; 14 – valve for switching on the divider; 15 – clutch master cylinder.
We analyze the gear shift diagram on KamAZ
In this article we will explain in detail how the gearbox works and what its structure is. Advice: the clutch pedal must be moved sharply and depressed only to the end. You need to choose the moment when it is best to switch the required gears based on the tachometer readings.
Some tips for using the Kamaz box. By following these tips, your engine will always run in economical mode. Advantages of boxes equipped with a divider:
- Switching frequency decreases.
- Easier control.
- Increasing vehicle traction.
For Kamaz vehicles with heavy load capacity, the previous boxes were modernized.
Video "Test drive KamAZ"
You can learn more about the test drive of this car from the video (author - Mikhail Mulyukin).
An official discussion of the question of why the speed on a KamAZ truck does not turn off, answers from seven users are available on the site. Instructions and video response are available.
Video quality: DVDRip
The video was uploaded to the admin from the user Aurelius: for immediate viewing on the portal.
To give the correct answer to the question you need to watch the video. After viewing, you will not need to seek help from specialists. Detailed instructions will help you solve your problems. Enjoy watching.
Humor in the topic: They buried their mother-in-law - they caught two Pokemon.
The clarity of gear engagement and the operation of the entire shift mechanism often worries owners of cars with a manual transmission. A common problem is that after starting the engine, one or more gears are engaged with great effort or not completely, it is not possible to change gears, at the moment of switching on, extraneous noise is heard, unnecessary vibrations appear, etc.
Such malfunctions appear unexpectedly, and difficulties when shifting gears can increase gradually. Speeds may be difficult to switch on “cold” and/or “hot”. It is noteworthy that gears in a manual transmission often shift normally when the engine is turned off.
Read in this article
How to correctly change the gearbox on a KAMAZ
KAMAZ divider control drive diagram Listed below are the main differences between the 152 gearbox and the modifications that this gearbox model includes:
- The height of the gearbox teeth has been increased.
- The splines have been strengthened and their fastenings have been removed from the box;
- a different method of fixing transmission gears has been implemented;
- the transmission began to be equipped with a reinforced divider synchronizer;
Why don't the gears turn on when the engine is running?
As for problematic switching when the internal combustion engine is running, then the list of the most common faults includes:
- problems with the clutch mechanism;
- lack of gear oil in the gearbox;
Engine speed and service life.
Disadvantages of driving at low and high speeds.
At what engine speed is it best to drive? Tips and tricks. A complete lack of lubrication in the gearbox will not allow you to change gears, since without oil the synchronizers will not be able to work properly, and the gears in the gearbox will not engage. It is imperative to fill only with lubricant recommended for viscosity and other characteristics.
As for adding oil to the transmission, it is necessary to separately take into account the issue of compatibility with the already filled lubricant.
Why are gears shifting poorly?
The second reason is a defect in the gear selection mechanism of the gearbox.
Backlash in the so-called “helicopter” is one of the reasons for unclear gear shifting. If gears shift poorly when the car is standing still with the engine off, the fault may only be in the gear selection mechanism of the gearbox. Look for damage or check that it is adjusted correctly.
Clutch faults
Simply put, the clutch is a mechanism that serves to transmit the torque of the internal combustion engine to the transmission, and also opens the engine and transmission so that gear can be changed. Failure of individual components of this unit may make it impossible to shift gears while the engine is running.
Brake fluid leaks
The design of many modern cars assumes that the working fluid for the clutch is brake fluid. If there is not enough fluid in the clutch drive hydraulic system, then the clutch will not engage fully.
In this case, the gears will engage slowly or not engage at all. For an initial check, you should look at the fluid level in the reservoir. If the level is low, it is necessary to check for leaks, eliminate defects and bleed the clutch.
Release bearing
Gears may not engage or may not engage fully if the fault is related to the clutch basket. The release bearing may also be the cause. If the specified bearing does not move freely along the input shaft or is jammed, then replacement of the part is necessary.
It is necessary to separately add that the primary sign of problems with the release valve is the appearance of a rustling or distinct hum when the car is running. The noise appears only when the clutch pedal is pressed to the floor. Such extraneous sounds can be present both on a cold car and on a warm one. After releasing the clutch pedal, the noise should disappear. A jammed release lever will not allow the clutch to engage, which complicates gear shifting and can also lead to rapid wear and destruction of other elements of the clutch mechanism.
Gearbox adjustment
Adjustment of the remote drive for controlling the gear shift mechanism in transmissions of models 142, 152 is carried out with the gear shift lever in the neutral position in the following order: Set screw and lock nut: 1 - lock nut; 2 — adjusting screw Drive adjustment: 1 — locknut; 2 - set screw; 3-bolt; 4 — adjusting flange; 5 — coupling bolt; 6 - traction; 7 — rod Gear ratios L — low gear in the divider; S—highest gear in the divider; R - reverse; C — low gear Clutch drive: 1 — dust fuse; 2 - cover; 3 — rod limiter; 4 — stop (flag) of the valve stem.
Check the stroke of the gear divider lever with compressed air in the brake pneumatic drive.
For measurement: Divider mechanism: 1 - inspection hatch cover; 2, 5 - setscrew; 3.4-lock nut.
Distinctive features
Five-speed gearbox diagram
The KamAZ 154 gearbox is a reliable transmission system that includes a 5-speed gearbox. manual box, 2-speed divider. This box is a modification of the 152nd model. It contains wear-resistant elements. In particular, these are several shafts, a gear transmission, a clutch, and synchronizers. It should be noted the presence of a drive, which includes a lever support for changing gears. The vibration isolator does its job effectively. Changing speed modes on the “mechanics” occurs without delay.
The gearbox has a ground gear ring, which helps reduce noise from the gearbox when moving. The spare part is wear-resistant. Its working life exceeds several hundred thousand km.
Machines of this class are characterized by the presence of jet thrust, which helps reduce the impact of vibrations and loads on working units during movement. The product is made of durable material and is wear-resistant. This mechanism includes bushings. If their working abilities are lost, body swaying may occur when changing speeds. Also, the oil seal must be checked.
The available divider includes:
- one pair of spur gears;
- two shafts;
- synchronizer;
- gear shift mechanism.
Demultiplier circuit
The presence of a multiplier on the 154 gearbox allows you to increase power evenly. Thanks to this, the transmission system experiences less stress. Due to its dimensions, this auxiliary device takes up relatively little space. If the pneumatic divider control system is clogged, the gearbox may not engage. The solution in this situation is to flush the air ducts and valves.
The shaft bearings present are covered with covers. They have a high accuracy class. The secondary shafts are distinguished by their high hardness and reliability.
Thus, every component related to the gearbox is created using high-quality materials. The shafts have a high safety factor and are designed for a long service life. The technical characteristics of the model 154 gearbox satisfy many potential heavy-duty vehicle owners.
The third gear on a Kamaz truck does not engage well
Subtleties of controlling the gearbox of a KamAZ car Good afternoon! Several turned on at 6520, how can I turn it off myself without removing the gearbox?
(Vasya) To prevent the occurrence of malfunctions related to the operation of the transmission, you need to switch gearbox modes only with the clutch fully depressed. How to correctly change the gearbox on a KAMAZ
Depending on the car model, the control scheme and transmission layout on the new KamAZ may differ. Domestic trucks can be equipped with two types of gearboxes.
The difference is that some transmissions have five shift stages, while others have ten.
Kamaz divider device adjustment faults, repair instructions
Video views: 823779
Category: Chinese cars
Description: Good afternoon reader, do-it-yourself car repair is a collection of all kinds of instructions (articles, videos, photo reports, questions/answers) that clearly show how to do the repair yourself. For ease of use of the etlib.ru website, all materials are divided by car brands and models, as well as into categories and types of materials. When buying a car, car enthusiasts are increasingly interested in doing their own car repairs. And so everything is in order, the length of the body of your car is 3502, width is 1934, height is 1185 mm. The wheelbase is 2617 mm. Ground clearance 191 mm. The car is equipped with a hybrid power unit. The four-cylinder engine is equipped with a system that provides engine power output. There are eight valves per engine. The diameter of one cylinder is 10 mm, the piston stroke is 23 mm. The engine crankshaft accelerates to 7000 rpm. Maximum torque is maintained up to 9000 rpm.
Original video title: Avdelare KAMAZ enheten fungerar justering
Release date: 03/06/2013
Duration:
Quality: HDRip
Posted by admin: at the request of Bezson
Opinion of a car owner named Neil: The 2.5 engine (192 hp) in combination with a 6-speed automatic gives a positive feeling both when accelerating from a standstill and when overtaking - everything is very cheerful and predictable. Compared to other crossovers, there is a decent ground clearance of 210 -215 depending on the tires. A decent trunk, a convenient system for folding out the rear sofa - there are as many as three parts, you can use any of them in various combinations. Everything folds into a flat floor. A very decent steering wheel, small, pleasant tactile sensations. Good seats, especially the driver’s with electric adjustment. The i-stop system is of course an interesting feature, but it’s not entirely clear what kind of fuel economy it provides. And you need to handle it carefully, as it can turn off the car “in the most interesting place”))) There is a system for directing the headlight beam after the steering wheel - in the direction of the turn. There is also a self-braking system - I haven’t tried it in practice yet)))
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Video instruction: Kamaz divider adjustment fault device
Necessary tools for work: 1. Hammer;
2. Open-end wrench 17; 3. Socket wrench 20; 4. skin; 5. Phillips screwdriver; 6. gearbox; nz-avto.ru
