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:0574-26871589 Unit sales : 0574-26871589  

:0574-26886646 Accessories Sales : 0574-26886646

:0574-26871569 Maintenance Hotline : 0574-26871569

pass      :0574-26892499 True : 0574-26892499

Ground       : 宁波戚家山联合路 246-252 Address : No. 246-252 , Lianhe Road, Qijiashan , Ningbo

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Products
Where can I rent a generator and regular maintenance in Ningbo


Detailed Description:

  The types of generator sets leased by Ningbo Rixin Power Technology Co., Ltd. are: 
  ◆ Open Cummins diesel generator: ordinary generator set, suitable for customers who have a power house or full of rainproof facilities.  Disadvantages of open-type generator set rental: ● It is louder than the silent type generator set and is not suitable for use in environmental conditions requiring very low noise; ● It cannot be used outdoors in rainy or snowy days. 
  ◆ Anti-speaker Cummins diesel generator: Silent unit, ● Suitable for places with strict requirements on environmental noise, such as large concerts, exhibition halls, urban subway construction, etc. The noise is generally 75 decibels, and the ultra-quiet type is 60 decibels Within.  Disadvantages of silent generator leasing: ● The unit itself is heavier than the open type unit, and the long-distance transportation cost is high.  ● Not suitable for use in high temperature environments.  ● Not affected by weather, can be used outdoors in rainy or snowy days. 
  ◆ Rainproof Cummins diesel generator: suitable for customers without rainproof facilities. 
  ◆ Trailer power station Cummins diesel diesel generator: ● Suitable for short-distance and often-moving equipment, such as tunnel engineering, road construction, etc.  ● There are simple rain-proof type and low-noise type.  ● It can be used outdoors in rainy or snowy days.  Disadvantages of mobile generators: ● The unit itself is heavier than open-type units, and the cost of long-distance transportation is high. 
  ◆ Cummins diesel generator set with fuel tank: suitable for short-term or temporary rental customers.  Where can I rent a generator and regular maintenance in Ningbo, where can I rent a generator and regular maintenance technical support, where can I rent a generator and regular maintenance costs in Ningbo, where can I rent a generator and regular maintenance service center in Ningbo Where can I rent generators and regular maintenance price specifications? Where can I rent generators and regular maintenance in Ningbo? Where can I rent generators and regular maintenance in Ningbo? Where can I rent generators and regular maintenance in Ningbo? Contact phone nearby, Ningbo Rixin Power Technology Co., Ltd. 
  The regular inspection schedule of the engine varies greatly with the application of the engine, the load situation, the quality of the fuel and lubricating oil, etc., and it is difficult to uniformly delimit it. The following is the maintenance interval under normal circumstances in China. 
In addition, during the first hour of using the engine for the first time, run at idle for 15 minutes, check the oil pressure, whether there is leakage of each component (fuel \ oil \ cooling water), and whether the indicators are normal; then, the speed and load should be constantly changed For a short time, high-speed and full-load operation is necessary; but in the next 4-5 hours, long-term operation under low speed and low load and high speed full load should be avoided.
(1) Engine external inspection
(2) Fuel tank oil quantity inspection and refueling
(3) Lubricant oil quantity inspection and lubricant supply
(4) Inspection of cooling water quantity and cooling water supply (sub-tank water level)
(5) Inspection and maintenance of fuel pipe and cooling water pipe
(6) Inspection and adjustment of governor lever and accelerator
(7) Inspection of warning lights and meters
  Inspection of oil quantity and oil supply quantity 

After checking the oil level and adjusting the position of the machine, fully insert the oil gauge and measure the height of the oil amount. If the engine has been refueled after the engine is turned on, check it 10 minutes after the engine is stopped to ensure that the oil returns to the oil pan.
Standard-The amount of oil should be between the highest point and the lowest point of the oil gauge; after refilling the oil, wait 3 minutes before measuring the oil level.
Replenish the engine oil.If there is very little lubricating oil left, use a special engine oil to add the amount of oil to the specified measurement.
[note]
The oil cannot exceed the highest line of the dipstick.In addition, the naturally aspirated engine may suck the oil into the combustion chamber during operation and cause white smoke and noise.
  In the case of turbocharged engines, oil may be injected from the supercharger, and the engine may also run poorly. 
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Cummins ISF3.8 CM2220 engine oil pump

installation

Cummins ISF3.8 CM2220 engine oil pump gear is installed in the front cover.

Apply Loctite ™ 243 thread sealant or equivalent to the oil pump cover mounting screw threads.

Install Cummins ISF3.8 CM2220 engine oil pump cover and eight mounting screws.

Tighten the oil pump cover screws.

Torque: 8.5 nm [75 in-lb]

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Cummins ISF3.8 CM2220 engine front gear chamber cover

installation

Lubricate the inner surface of the camshaft oil seal bore with a small amount of clean Cummins ISF3.8 CM2220 engine oil.

Install the new Cummins ISF3.8 CM2220 engine camshaft oil seal into the front gear chamber cover.

Install the oil seal into the hole by hand. Make sure that the camshaft oil seal is inserted evenly on each side.

Apply slight pressure to push it deeper into the hole until the front of the camshaft oil seal is in the same position as the front gear chamber cover.

NOTE: Do not install the camshaft cover at this time.

Use the Cummins ISF3.8 CM2220 engine camshaft cover to push the oil seal into the hole to the correct depth.

The oil seal should fit into the hole approximately 12 mm [0.48 in].

Lubricate the outer surface of the front end of the camshaft with clean Cummins ISF3.8 CM2220 engine oil.

When installing the Cummins ISF3.8 CM2220 engine front gear chamber cover gasket, be careful not to damage the rubber oil seal on the bottom edge of the gasket.

NOTE: If needed, apply a small amount of sealant (part number 3164070) to the front gear room cover gasket to help hold the gasket in place.

Install the front gear room cover gasket. Use a circular dowel pin in the cylinder to locate and temporarily secure the front gear chamber cover in place.

NOTE: If necessary, rotate the oil pump in the front gear chamber cover to align with the oil pump drive gear on the crankshaft.

Install the front gear compartment cover. When installing, pay attention to align the camshaft oil seal with the front end of the camshaft. Use a circular dowel pin in the cylinder block to locate the front gear chamber cover.

NOTE: Make sure that the three longer mounting screws are installed in the correct position, as documented during the removal process. If no recordings were made during disassembly, the three longer mounting bolts should be installed in positions 1, 14, and 12 as shown in the next step.

Install the front gear room mounting screws.

Cover the front gear chamber to the cylinder mounting screws in the order indicated.

Torque: 24 nm [212 in-lb]

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Cummins ISF3.8 CM2220 engine crankshaft front oil seal

installation

Use tool (part number 4919660) to seal the oil into the front gear housing cover.

Install the mounting adapter (7) on the front end of the crankshaft.

Install two M12 x 1.25 x 60 mm hex head screws.

Place the new Cummins ISF3.8 CM2220 engine crankshaft front oil seal on the disassembler screw (6) and the front end of the crankshaft, and slide the oil seal assembly as far as possible by hand toward the front gear chamber cover.

Pay attention

Do not use impact wrenches or pneumatic tools. Doing so will damage the tool.

Note: Make sure that the oil seal makes even contact with the crankshaft.

Assemble the Cummins ISF3.8 CM2220 engine crankshaft oil seal installer (4) on the disassembler screw (6) and the front end of the crankshaft, then push the oil seal installer toward the oil seal until it evenly rests on the oil seal.

Place the flat washer (2) and the hex nut (1) on the disassembler screw (6) and tighten by hand to tighten.

Pay attention

Do not over-tighten the disassembler screw assembly after the crankshaft oil seal remover is in contact with the front cover. Doing so will damage the tool.

While fixing the Cummins ISF3.8 CM2220 engine crankshaft oil seal installer (4), use a wrench to turn the hex nut clockwise until the crankshaft oil seal installer contacts the front gear chamber cover.

Remove the parts of the service tool and check that the oil seal is properly engaged. Make sure there are no exceptions

Cummins ISF3.8 CM2220 engine crankshaft rear oil seal

installation

Pay attention

Always replace the rear crankshaft oil seal with the same oil seal as the previous installation to prevent oil leakage.

Pay attention

Oil must not remain on the seal lips / holes and seal surfaces on the crankshaft to prevent oil seal leakage.

To facilitate installation, apply a mild soap solution to the outer neck of the sealed housing (A).

NOTE: The new oil seal is provided with an oil seal guide tool (B). When installing the oil seal on the rear crankshaft flange, this oil seal must remain on the oil seal guide tool. This ensures that the oil seal lips are not damaged during installation.

Pay attention

Always replace the rear crankshaft oil seal with the same oil seal as the previous installation to prevent oil leakage.

Place the new Cummins ISF3.8 CM2220 engine crankshaft rear oil seal (if needed, use an oil seal guide tool) on the crankshaft flange and slide it towards the flywheel housing by hand.

Note: Make sure that the oil seal makes even contact with the crankshaft.

If an oil seal guide tool is used, remove it.

Each new crank lip oil seal comes with a disposable oil seal driver.

The rear gear train Cummins ISF3.8 CM2220 engine uses an oil seal driver (usually a plastic ring) to seal the mounting crankshaft to the correct depth in the flywheel housing hole.

The new Cummins ISF3.8 CM2220 engine crankshaft rear oil seal comes with a disposable plastic screwdriver design that can be used with both types of oil seals.

Double outer dust-proof lip crankshaft rear oil seal-For this type of oil seal, the side with a large chamfer on the inside diameter of the disposable screwdriver (1) must be in contact with the oil seal.

Single outer dust lip crankshaft rear oil seal-For this type of oil seal, the side with a small chamfer on the inside diameter of the disposable screwdriver (2) must be in contact with the crankshaft rear oil seal.

Note: Without a disposable oil seal driver, it may be necessary to tap the rear crankshaft oil seal with a plastic hammer to help shake the rear crankshaft oil seal in the flywheel housing hole.

Install the crankshaft rear oil seal on the crankshaft flange as previously described in this step. Install the crankshaft oil seal to the correct depth of the housing using a suitable disposable oil seal driver that comes with each new crankshaft rear oil seal.

Use a plastic hammer to press the oil seal into the housing until the alignment tool is against the housing. Tap the 12, 3, 6, and 9 o'clock positions on the tool to press the oil seal evenly to avoid bending the oil seal bracket.

Cummins ISF3.8 CM2220 engine crankshaft speed indicator ring

installation

Note: Make sure that the positioning pin of the crankshaft is correctly aligned with the speed signal wheel.

Install six screws that secure the Cummins ISF3.8 CM2220 engine crankshaft speed indicator ring / pulley to the front end of the crankshaft.

Tighten the crankshaft speed indicator ring / pulley screws crosswise.

Torque Value:

55 nm [41 ft-lb]

Loosen the screws 180 degrees.

55 nm [41 ft-lb]

Rotate 90 degrees

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Cummins ISF3.8 CM2220 engine jumper

installation

Note: The jumper has a round and oval hole. If a new jumper is installed, there is no need to place the holes in a specific location. When you continue to use jumper clamps, make sure that they are installed in their original position and orientation.

Install the Cummins ISF3.8 CM2220 engine jumper plate on the valve stem.

Cummins ISF3.8 CM2220 engine putter or tube

installation

Note: The putter must be installed in its original position and orientation.

Install the Cummins ISF3.8 CM2220 engine putter into the valve lifter jack.

Lubricate the putter ball socket with clean 15W-40 engine oil.

Cummins ISF3.8 CM2220 engine rocker

installation

Cummins ISF3.8 The CM2220 engine jumper is installed in the original position.

Install the push rod according to the mark when removing.

Install the putter into the valve lifter jack.

Lubricate the putter ball socket with clean 15W-40 engine oil.

Install the rocker arm assembly and shaft seat to their original positions.

Install the shaft mount mounting screws.

Tighten the shaft mounting screws.

Torque: 36 nm [27 ft-lb]

Pay attention

Turn the adjusting screw until it comes into contact with the sleeve of the push rod. This ensures that when the valve clearance is set for the rotating Cummins ISF3.8 CM2220 engine, the putter always stays in contact with the lifter and adjustment screw. If not done, the putter may bend or be damaged.

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Cummins ISF3.8 CM2220 engine overhead mechanism

Adjustment

Note: Cummins ISF3.8 CM2220 engine coolant temperature must be below 60 ° C [140 ° F].

Use the turning tool (part number 3824591) to rotate the crankshaft until the No. 1 cylinder is at top dead center.

The top dead center pointer is on the crankshaft speed indicator ring.

Note: If there is no top dead center mark on the crankshaft speed indicator ring, align the large gap on the crankshaft speed indicator ring with the 5 o'clock position (2). You should also see the pin at 9 o'clock (1). Check whether the two rocker arms of cylinder 1 are loose. If they are not loose, you should rotate the crankshaft 360 degrees, and then recheck whether the rocker arm is normal.

When the Cummins ISF3.8 CM2220 engine is in this position, valve clearance measurements for the following rocker arms can be performed:

(E = exhaust valve, I = Intake valve)

1I, 1E, 2l And 3E:

Clearance check limit

mm

in

Intake valve

0.28

Smallest

0.011

0.381

maximum

0.015

exhaust

0.53

Smallest

0.021

0.63

maximum

0.025

Note: Checking the setting value of the overhead mechanism is usually part of the troubleshooting procedure. As long as the gap measurement value is within the above range, there is no need to reset it during the inspection.

Note: When sliding the feeler gauge between the bridge plate and the rocker arm seat, if you can “feel” a certain resistance, the clearance is correct.

Insert the feeler gauge between the jumper and the rocker socket to measure the gap. If the gap measurement exceeds the technical specification, loosen the lock nut and adjust the gap to the nominal technical specification.

Intake valve

0.33

0.013

exhaust

0.58

0.023

Tighten the lock nut and measure the valve clearance again.

Torque: 24 nm [212 in-lb]

Use a turning tool (part number 3825591) to rotate the crankshaft 360 degrees.

Follow the same steps and technical specifications described above to measure the clearance of the following rocker arms:

(E = exhaust valve, I = Intake valve)

2E, 3I, 4E And 4I

If the gap exceeds the technical specifications, adjust the gap.

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