Tennant 285, Руководство оператора

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MAINTENANCE
3-33
285 MM191 (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 010750)
Spark plug gap (for 0.039 in (1 mm)
machines serial number
010750 and above)
Timing 6
_
BTDC @ 600 rpm,
(For machines below gasoline
serial number 010750) 10
_
BTDC @ 600 rpm,
LPG
Firing order 1---2---4---3,
counterclockwise
rotation
Valve clearance, cold 0.009 in (0.22 mm)
(For machines below intake
serial number 010750) 0.023 in (0.59 mm)
exhaust
Valve clearance, cold 0.009 in (0.22 mm)
(For machines serial intake
number 010750 0.013 in (0.32 mm)
and above) exhaust