1. take good care of ones health engine oil
Oil is used for engine and hydraulic devices operating under harsh conditions (high temperature, high pressure), and will deteriorate with long-term use. Use the recommended oil that meets the grade specified in the Operation and Maintenance Manual and the highest and minimum air temperature. Even if the oil is not dirty, it should be replaced according to the prescribed maintenance cycle. Oil is like the blood in the human body, so attention should be paid to prevent any impurities (water, metal particles, dust, etc.) from entering. Most faults of the machine are caused by the mixing of impurities. When storing oil for oil or refueling. Do not mix together different grades and brands of engine oil. Fuel oil according to the prescribed amount of oil. Too much oil or too little oil can cause a malfunction. If the oil in the hydraulic device is dirty, it is possible that water or air enters the oil circuit.
Ⅰ.fuel oil
To prevent moisture in the air from condensing into water in the fuel tank at the end of daily work. A fuel pump is a precision device, and the fuel pump does not function properly if the fuel used contains moisture or dirt. Special care should be taken not to let impurities in when storing or filling the fuel. Be sure to use the fuel oil as specified in the Operation and Maintenance Manual. When fuel is used, the fuel will set depending on the operating temperature (especially at low temperatures below-15°C), and therefore must be replaced with a fuel that matches the temperature. Remove the sediment and water from the fuel tank before starting the engine or after 10 minutes of refueling. If the fuel has run out or the fuel filter has been replaced, the air from the oil circuit must be discharged. If there are impurities in the fuel tank, keep the fuel tank and fuel system clean.
Ⅱ.grease
Grease is used to prevent wear and noise from the joints. Any part after a long time, if stuck or noise, add grease. Wipe off the old grease when from filling grease. In particular, if there is sand or dirt attached, it will accelerate the wear of the rotating parts, so clean them.
2.Keep in repair
When repairing the machine, the machine shall be fastened according to the following data:
Thread diameter a(mm)
Wrench Size b(mm)
Wrench Size b(mm)
Wrench Size b(mm)
9/16-18UNF
19
44(4.5)
35-63(3.5-6.5)
11/16-16UN
22
74(7.5)
54-93(5.5-9.5)
11/16-16UN
27
103(10.5)
84-132(8.5-13.5)
11/16-16UN
32
157(16.0)
84-132(8.5-13.5)
1.3-14UNS
36
216(22.0)
177-245(18.0-25.0)
Nominal thread series a(mm)
Wrench Size b(mm)
Target value
Capacity range
6
10
13.2(1.35)
11.8-14.7(1.2-1.5)
8
13
31(3.2)
27-34(2.8-3.5)
10
17
66(6.7)
59-74(6.0-7.5)
12
19
113(11.5)
98-123(10.0-12.5)
14
22
172(17.5)
153-190(15.5-19.5)
16
24
260(26.5)
235-285(23.5-29.5)
18
27
260(26.5)
320-400(33.0-41.0)
20
30
510(52.3)
455-565(46.5-58.0)
22
32
688(70.3)
610-765(62.5-78.0)
24
36
883(90.0)
785-980(80.0-100.0)
27
41
1295(132.5)
1150-1440(118.0-147.0)
30
46
1720(175.0)
1520-1910(155.0-195.0)
33
50
2210(225.0)
1960-2450(200.0-250.0)
36
55
2750(280.0)
2450-3040(250.0-310.0)
39
60
3280(335.0)
2890-3630(285.0-370.0)
