MAINTENANCE
3-33
275 SERIES II MM190 (12---89)
CYLINDER HEAD -- DIESEL
CYLINDER HEAD
The cylinder head must be properly torqued after
servicing to ensure proper operation. A three-stage
torque procedure should be used. Snug down the
cylinder head bolts and nuts in the proper sequence;
first to one-third, then two-thirds, and then to the full
torque specification of 55 to 60 ft lb (75 to 80 Nm).
Retighten the bolts and nuts after operating the
engine for
30 minutes.
NOTE: Power wrench torque limit must be held at
least 10 ft lb (15 Nm) below torque specification.
Hand tighten to specification.
02767
CYLINDER HEAD BOLT TIGHTENING SEQUENCE
VALVE CLEARANCE
The valve clearance must be properly adjusted after
servicing or retorquing the cylinder head bolts to
ensure proper operation. Measure valve clearance
with a feeler gauge after aligning each cylinder on
the compression top dead center stroke.
Adjust them with the engine cool to 0.0071 to 0.0087
in (0.18 to 0.22 mm) in the firing order 1---2---3.
CRANKCASE VENTILATION SYSTEM
Clean the crankcase ventilation hoses, tubes, and
fittings and replace the PCV valve after every
400 hours of operation.
TUNE-UP CHART -- GASOLINE, LPG
Idle speed, no load
950
+
50 rpm
(Fast 1) governed 2200
+
50 rpm
speed, under load
(Fast 2) governed 2650
+
50 rpm
speed, under load
Spark plug gap
0.035 in (0.9 mm)
(for machines below
serial number 006500)
Spark plug gap
0.039 in (1 mm)
(for machines
serial number
006500 and above)
Timing
6
_
BTDC @ 600 rpm,
(for machines
gasoline
below serial
10
_
BTDC @ 600 rpm,
number 006500)
LPG
Firing order
1---2---4---3,
counterclockwise
rotation
Valve clearance, cold
0.009 in (0.22 mm)
(for machines below
intake
serial number 006500)
0.023 in (0.59 mm)
exhaust
Valve clearance, cold
0.009 in (0.22 mm)
(for machines serial
intake
number 006500
0.013 in (0.32 mm)
and above)
exhaust
Содержание 275 Series II
Страница 1: ...r 275 Series II Sweeper Scrubber ...
Страница 6: ...ABOUT THIS MANUAL 275 SERIES II MM190 12 89 d ...
Страница 18: ...SPECIFICATIONS 1 2 275 SERIES II MM190 12 89 ...
Страница 22: ...SPECIFICATIONS 1 6 275 SERIES II MM190 12 89 ...
Страница 24: ...OPERATION 275 SERIES II MM190 12 89 2 2 ...
Страница 74: ...MAINTENANCE 3 14 275 SERIES II MM190 12 89 04644 HYDRAULIC SCHEMATIC LOW DUMP MODEL ...
Страница 75: ...MAINTENANCE 3 15 275 SERIES II MM190 12 89 04645 HYDRAULIC SCHEMATIC MULTI LEVEL DUMP MODEL ...
Страница 97: ...MAINTENANCE 3 37 275 SERIES II MM190 12 89 04643 ELECTRICAL SCHEMATIC DIESEL ...
Страница 98: ...MAINTENANCE 3 38 275 SERIES II MM190 12 89 04642 ELECTRICAL SCHEMATIC ACCESSORIES ...
Страница 99: ...MAINTENANCE 3 39 275 SERIES II MM190 6 90 06187 ELECTRICAL SCHEMATIC AUTO SHAKER RFS ...
Страница 100: ...MAINTENANCE 3 40 275 SERIES II MM190 6 90 06187 ELECTRICAL SCHEMATIC AUTO SHAKER RFS ...
Страница 130: ...APPENDIX 275 SERIES II MM190 12 89 4 2 ...