Generac Power Systems GN190H, Руководство по обслуживанию и ремонту

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SPECIFICATIONS
57
PISTON (CONTINUED)
MODEL GN-190 GN-191 GN-220
WRIST PIN BORE
DIAMETER:
DESIGN DIAMETER
0.708-0.709 inch 0.708-0.709 inch 0.708-0.709 inch
(18.000-18.011mm) (18.000-18.011mm) (18.000-18.011mm)
TOP RING GROOVE
WIDTH:
DESIGN WIDTH
0.059-0.061 inch 0.059-0.061 inch 0.059-0.061 inch
(1.52-1.54mm) (1.52-1.54mm) (1.52-1.54mm)
SECOND RING
GROOVE WIDTH:
DESIGN WIDTH
0.059-0.061 inch 0.059-0.061 inch 0.059-0.061 inch
(1.52-1.54mm) (1.52-1.54mm) (1.52-1.54mm)
OIL CONTROL RING
GROOVE WIDTH:
DESIGN WIDTH
0.118-0.119 inch 0.118-0.119 inch 0.118-0.119 inch
(3.01-3.03mm) (3.01-3.03mm) (3.01-3.03mm)
TOP RING WIDTH:
DESIGN WIDTH
0.057-0.059 inch 0.057-0.059 inch 0.057-0.059 inch
(1.47-1.49mm) (1.47-1.49mm) (1.47-1.49mm)
TOP RING END GAP: *
DESIGN END GAP
0.005-0.016 inch 0.005-0.016 inch 0.005-0.016 inch
(0.15-0.40mm) (0.15-0.40mm) (0.15-0.40mm)
SECOND RING WIDTH:
DESIGN WIDTH
0.057-0.059 inch 0.057-0.059 inch 0.057-0.059 inch
(1.465-1.490mm) ( 1.465-1.490mm) ( 1.465-1.490mm)
SECOND RING END GAP: *
DESIGN END GAP
0.006-0.016 inch 0.006-0.016 inch 0.006-0.016 inch
(0.15-0.40mm) (0.15-0.40mm) (0.15-0.40mm)
OIL CONTROL RING
WIDTH:
DESIGN WIDTH
0.111-0.118 inch 0.111-0.118 inch 0.111-0.118 inch
(2.825-3.003mm) (2.825-3.003mm) (2.825-3.003mm)
OIL CONTROL RING
END GAP: *
DESIGN END GAP
0.015-0.055 inch 0.015-0.055 inch 0.015-0.055 inch
(0.38-1.40mm) ( 0.38-1.40mm) ( 0.38-1.40mm)
*NOTE 1: Measure end gap with ring pushed down in cylinder to depth of 2.75 inches