Komatsu 6D140 piston ring diesel engine accessories 6211-31-2031​

“NPR PISTON RING SET” Fitting Instruction

I. Install piston rings in the following order:

1,Thoroughly clean ring grooves of piston.

2,Fit the oil control -followed by compression rings in ascending order,into the ring grooves using a ring tool.

3, Take care to fit the rings with marked faces upward and toward top of the piston.

II.Confirmation that rings are fitted correctly:

1,Make sure rings can be moved freely - without jamming-in the piston grooves.

2,Make sure each ring gap is not positioned in line with piston pin axis or thrust

III.Installation of piston fitted with rings:

Always use an installation tool when inserting into cylinder.

Special instruction for fitting NPR NIFFLEX oil ring

1, Fit the expander of NIFFLEX oil ring into the ring groove by hand and ensure the ends butting together as shown in the illustration.

2,Hold with your thumb the expander at its butt ends. Fit the upper rail on to the expander with its gap approx.45° to the left,and the lower rail approx.45° to the right to the ends of expander.

Founded in 2008, Guangzhou Hong Ling Auto Parts Business Department is a professional manufacturer of diesel piston, piston ring, cylinder liner, head gasket & overhaul gasket kit. We have been cooperated with OEM factories in China for several years, running business mainly in imported diesel engines (Parta Used for , CUMMINS, KOMATSU, HINO, DAEWOO, ISUZU, MITUSUBISHI, NISSAN, YANMAR, and TOYOTA). All products have passed the national quality supervision on combustion engines and obtained certifies from ISO9002.
Till now, we have four storehouses in Guangzhou, occupying an area of over 5,000 square meters. The number of employees reaches up to 100, among which include 20 sales personnel in China, 15 sales personnel outside China and 10 QC personnel. Our products have ready market in Europe, the Middle East, South America, North America, and Southeast Asia and are well received.
With the principles of international brand, good quality, shared resource, and serving the world, we endeavor to provide perfect accessories replacement solutions for customers. We are ready to cooperate with you to reach a win-win future.