Kohler Command PRO CH260, Руководство по обслуживанию

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15
Specifi cations
17 690 01 Rev. F KohlerEngines.com
CLEARANCE SPECIFICATIONS 3 CH260/CH270 CH395 CH440
Ignition
Spark Plug Gap 0.76 mm (0.030 in.)
Module Air Gap 0.254 mm (0.010 in.)
Piston, Piston Rings, and Piston Pin
Piston-to-Piston Pin Running Clearance 0.009/0.016 mm
(0.0003/0.0006 in.)
0.002/0.016 mm (0.0001/0.0006 in.)
Piston Pin Bore I.D.
New 18.000/18.008 mm
(0.7087/0.7090 in.)
20.000/20.008 mm
(0.7874/0.7877 in.)
Max. Wear Limit 18.05 mm (0.7106 in.) 20.05 mm
(0.7894 in.)
Piston Pin O.D.
New 17.992/17.998 mm (0.7083/0.7084 in.)
19.992/19.998 mm
(0.7871/0.7873 in.)
Max. Wear Limit 17.95 mm (0.7067 in.) 19.95 mm
(0.7854 in.)
Top and Center Compression Ring Side Clearance
New Bore 0.04 mm
(0.002 in.)
0.07 mm
(0.003 in.)
0.045 mm
(0.0018 in.)
Used Bore (Max.) 0.15 mm
(0.006 in.)
0.11 mm
(0.004 in.)
0.10 mm
(0.004 in.)
Top Compression Ring End Gap
New Bore
0.325/0.400 mm
(0.013/0.016 in.)
0.250/0.400 mm (0.010/0.016 in.)
Used Bore (Max.) 1.00 mm (0.039 in.)
Center Compression Ring End Gap
New Bore
0.325/0.400 mm
(0.013/0.016 in.)
0.650/0.800 mm
(0.026/0.032 in.)
0.640/0.800 mm
(0.025/0.032 in.)
Used Bore (Max.) 1.00 mm
(0.039 in.)
1.50 mm (0.059 in.)
Oil Control Ring-to-Groove Side Clearance 0.05/0.19 mm (0.0019/0.0075 in.) 0.09/0.15 mm
(0.0035/0.0059 in.)
Piston Thrust Face O.D.
New 69.975/69.995 mm
(2.755/2.756 in.)
7
77.955/77.975 mm
(3.069/3.070 in.)
8
88.955/88.975 mm
(3.502/3.503 in.)
9
Max. Wear Limit 69.82 mm
(2.749 in.)
77.82 mm
(3.064 in.)
88.82 mm
(3.497 in.)
Piston Thrust Face-to-Cylinder Bore Running
Clearance
0.057/0.075 mm
(0.002/0.003 in.) 7
0.033/0.067 mm
(0.001/0.003 in.) 8
0.025/0.060 mm
(0.001/0.002 in.) 9
3
Values are in Metric units. Values in parentheses are English equivalents.
7
Measure 21.8-22.2 mm (0.8583-0.8740 in.) above bottom of piston skirt at right angles to piston pin.
8
Measure 17.8-18.2 mm (0.7008-0.7165 in.) above bottom of piston skirt at right angles to piston pin.
9
Measure 29.8-30.2 mm (1.1732-1.1890 in.) above bottom of piston skirt at right angles to piston pin.