Contact: manager Lin
Tel: 024-86922831
Fax: + 86-024-89648866
Telephone: 13998189555
E-mail: Srmf@163.Com
Postal Code: 110121
web：en.sylbjx.com
Address: Wangyi Development Zone, Shenbei street, Shenbei New District, Shenyang, Liaoning
Maintenance method of nqg-5.1 internal combustion rail cutting machine
1、 Maintenance and repair
1. If the machine is out of service for more than one month or before the first use, clean the external surface of the machine, fill lubricating grease in the lubricating parts, check the engine status and check all fastening parts to ensure that they are complete and fastened in good condition.
2. The test run shall be conducted before daily operation to observe whether there is abnormal noise or large vibration, and any abnormality shall be repaired in time.
3. Frequently check the wear degree of the saw blade. If it is found that it is seriously worn or partially damaged, it shall be replaced with a new saw blade immediately.
4. Avoid collision during use and handling. When the machine is shut down and not in use, place the rail cutter stably and do not place it disorderly.
5. Use 200 hours as a maintenance period, check the belt tension and wear degree, replace the bearing grease and replace the failed fasteners.
2、 Replacement and adjustment of V-belt
When the V-belt needs to be replaced after being used for a period of time, first loosen the lock nut on the V-belt adjusting bolt, rotate the adjusting bolt and swing the handrail to reduce the distance between the two pulleys, remove the V-belt, replace the new V-belt, swing the handrail, rotate the adjusting bolt at the same time, tighten the V-belt and adjust it to an appropriate tightness, If the V-belt is too tight, the service life of the V-belt will be shortened. If it is too loose, the saw rail will be weak. Lock the nut of the adjusting bolt after Z.
3、 Storage of saw blade
1. The storage time should not be too long, generally 10 ~ 20 days before operation.
2. During storage, pay special attention to moisture-proof treatment.
3. Placement of saw blade: it shall be placed horizontally. The large flat bottom plate under the saw blade group shall be placed horizontally with appropriate pressure on it.
4. In order to prevent accidents, it is recommended to purchase the saw blade from our factory to ensure the quality of the saw blade and the allowable safe linear speed (≥ 70m / s). Our factory is not responsible for any accident caused by the purchase of poor quality saw blades.
5. Warped and deformed saw blades shall not be used, otherwise the consequences shall be borne by yourself.
4、 General faults and handling methods
Fault | Possible causes | Handle |
The saw blade shakes greatly, the saw mouth deviates and is fragile during cutting | a. Damp saw blade or uneven surface warpage | Replace with a new one |
b. Low saw blade strength | Select a suitable saw blade | |
c. Cutting head bearing damaged | Replace the bearing | |
d. There are sundries between the outer gland of the saw blade and the grinding wheel blade | Check and eliminate | |
e. Excessive wear of frame and rail hook pin shaft | Replace failed parts | |
f. Expanding rail clamp saw | Change the rail cutting sequence | |
g. The number of revolutions of the saw blade is too high | Adjust engine rpm | |
Saw edge deviation | a. The saw blade surface is warped and uneven | Replace with a new one |
b. Low saw blade strength | Select a suitable saw blade | |
c. The rail fat edge is too large and the rail clamping is not correct | Track cutting after correction | |
d. Deformation of frame and rail hook pin shaft | Replace the pin shaft | |
Clamping saw blade | a. The saw blade surface warps, resulting in obvious skew of the cut | Replace with a new one |
b. The saw blade is partially burnt and loses cutting ability | Replace with a new one | |
c. V-belt slack | Tensioning belt | |
d. The track rail is in expansion state | Select another notch near the notch or adjust the rail cutting sequence | |
Local burning of saw blade | a. The saw blade is locally too hard and high | Replace the saw blade with a new one, and the hardness is suitable |
b. The handle does not swing or the swing range is too small, resulting in local burning loss | Operate according to the instructions | |
Section perpendicularity out of limit | The surface of the saw blade is warped and uneven, and the strength of the saw blade is insufficient | Replace the new piece and use the three-way cutting method |
The part where the rail hook contacts the rail is deformed or damaged | Repair or replace rail hook | |
Bending deformation of large hollow shaft or connector | Repair or replace | |
The starting pull plate resistance is too large or cannot be pulled | a. Cylinder oil inlet | Remove the spark plug and pull the starting pull plate until there is no oil at the spark plug position |
b. Cylinder | The cylinder assembly needs to be replaced | |
Difficult engine start | a. The ignition switch is in the wrong position | adjustment |
b. Improper choke position | Appropriate adjustment | |
c. Blocked oil circuit | Check and eliminate | |
Difficult engine start | d. Dirty air filter | Treatment or replacement |
e. Excessive carbon deposit on spark plug | Remove carbon deposits or replace | |
f. Spark plug does not ignite | Replace spark plugs | |
Insufficient engine power and weak cutting | a. Dirty air filter | Clean or replace the air filter |
b. Carburetor blocked | Clean carburetor | |
c. Too loose triangular belt | Adjust and properly tension |
