Transmission fault diagnostic program

1. Oil leakage phenomenon : around the transmission cover, around the side cover of the casing, the screw plug of the fuel filler port, the screw plug of the oil discharge port, the oil return thread of the first shaft, the oil seal of the second shaft (or the oil return thread) or the bearing caps, etc. There are obvious signs of oil leakage.

Reason :

Combined with plane deformation or rough processing. The elimination method is: grinding the bonding plane;

The gasket at the joint plane is too thin, hardened or damaged. The troubleshooting method is: replace the damaged gasket;

The loosening or tightening of the fixing screws at the transmission cover, the housing side cover and the bearing cover does not meet the requirements. The elimination method is: retighten;

The oil seal is not the same as the installation of the journal, the oil is reversed, the seal itself is worn, hardened or the journal is not concentric with the shaft. The method of elimination is: replace the oil seal;

The oil return thread is not concentric with the installation of the journal, the oil return thread groove is heavily deposited, or the machining burr hinders the oil return. The elimination method is: repairing the oil return thread;

The oil seal journal wears into a groove. The troubleshooting method is: repair the damaged journal or replace it;

The filler port and the oil drain port are loose or the thread is damaged. The elimination method is: retighten;

The housing has casting defects or cracks. The troubleshooting method is: replace the new housing;

The vent hole is clogged, causing the pressure inside the box to be too large. The method of elimination is to clear the vent.

2, abnormal sound phenomenon: the transmission gear meshing sound, operating sound of the bearing much noise and the like; transmission sent dry grinding impact of such abnormal noise.

Reason :

The rolling bearing lacks oil (such as the first shaft front bearing), the steel ball mill loses round, the raceway has pitting, delamination, and flaws, and the inner and outer raceways rotate on the shaft or inside the casing, or the bearing clearance is too large. The elimination method is: replenish the oil and replace the damaged bearing;

Gear machining accuracy or improper heat treatment process causes gear deflection or tooth shape to change. The troubleshooting method is: replace the damaged gear;

The backlash is too large or the spline fit is too large. The troubleshooting method is: replace the damaged synchronizer hub and shaft;

The repaired tooth surface does not trim the burrs, bumps, etc. The elimination method is: repair the tooth surface;

Gears are not replaced in pairs in the flaking, delamination, defect, wear, or replacement repair. The troubleshooting method is: replace the damaged gear;

The first axis and the second axis are bent and deformed. The elimination method is: replacing the deformed shaft;

After the bearing hole of the casing is repaired, the center distance of the two holes is changed or the two axes are not parallel. The troubleshooting method is: replace the damaged casing;

After the repaired fork is not right or the fork is worn, the unilateral surfacing is too thick, resulting in the position of the relevant gear is not accurate. The troubleshooting method is: replace the shift fork;

The second shaft fastening nut is loose or the axial positioning of the other shafts is misaligned. The elimination method is: reassembly;

Self-locking device groove, steel ball wear or even self-locking spring fatigue, break, resulting in off-position when the gear is off. The elimination method is: replace the fork shaft, steel ball or spring;

Individual teeth are broken. The troubleshooting method is: replace the damaged gear;

Insufficient gear quality, deterioration, specifications do not meet the requirements or there are debris in the oil. The method of elimination is to replenish or replace the oil that meets the requirements.

3. Jumping phenomenon : When the car is overloaded or climbed, the shift lever sometimes automatically jumps back to the neutral position from a certain gear.

Reason :

The axial gap between the synchronizer sleeve and the shift fork is too large. The troubleshooting method is: replace the synchronizer sleeve or fork;

The self-locking device groove, the steel ball is seriously worn or the self-locking spring is fatigued and broken, and the self-locking steel ball does not enter the groove. The method of elimination is to replace the damaged fork shaft, steel ball or self-locking spring;

The axial clearance or radial clearance of the permanent gear is too large, and the axial clearance or radial clearance of each shaft is too large. The troubleshooting method is: replace the parts and adjust the gap;

The first axis, the second axis, and the crankshaft are caused by fluctuations in the center position of the rear hole of the clutch housing, the verticality of the clutch housing and the transmission housing engagement plane with respect to the crankshaft axis, or the first shaft and the second shaft bearing are too loose. Not on the same axis. The solution is to replace the damaged housing or the worn bearing.

4, chaotic phenomenon : in the case of complete clutch separation, you can not hang up the file or pick up the file; sometimes you want to hang a certain file, the result is hung on another file.

Reason :

The interlock is damaged. The method of elimination is: replacing the interlock device;

The length of the lower end of the shift lever is insufficient, the wear of the lower working surface is excessively large, or the guide groove of the guide block on the shift fork shaft is excessively worn. The elimination method is: replace the worn parts;

The shifting rod ball head positioning pin is loose, broken or the ball head and the ball hole are worn excessively. The troubleshooting is to replace worn or damaged parts.

5, shift difficult phenomenon: when the shift lever is difficult effort.

Reason :

The clutch does not separate. The elimination method is: separating the clutch;

The fork shaft is bent. The method of elimination is: correct or replace the fork shaft;

The viscosity of the oil in the transmission is too large. The troubleshooting method is: change the oil.

Galv Pole Top Bracket

Product Name:Galv pole top bracket

Key words:Galv top bracket,Galv pole top support,Pole top bracket for galv

Application: Used to support post insulators on the top of utlity poles.

Technical parameters

Size:450x95

Part No.: Q.Q.Q.0000112

Material elongation:Q345.Q235

Finished: Galvanized,HDG,Plain,Painting,Dacromet,Electrogalvanizing,Oiled,Phosphorization,etc

Place of origina:China

HS Code:730820

Trademark:ZBRF

Color:Customized

Part:Power,Galv

Transport Package:Plastic Bag or Gunny bag and Wooden Case

Port of shipment:Shanghai Port,Taicang Port

Certification:CE,SGS,A.S

Tensile strength ≥410Mpa

Yield strength ≥280Mpa

Elongation≥22%

Galv Pole Top Bracket,Galv Top Bracket,Galv Pole Top Support,Pole Top Bracket For Galv

TAICANG ZHONGBO RAILWAY FASTENING CO., LTD. , https://www.railfastener.com