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Engine Maintenance (Rev. 04/03)
51
Individual Cylinder Timing and Firing Order
ADJUST ENGINE VALVE CLEARANCE
1.
Remove the valve cover. Torque 18 mm diameter head
bolts prior to adjusting the valves: 26.8 ft-lb (36.3
N•m). Valve clearance should be checked after every
2000 operating hours, maximum. It is very important
that valves be adjusted to the correct specifications for
satisfactory engine operation. Insufficient valve clear-
ance will result in compression loss and misfiring of
cylinders resulting in burned valves and seats. Exces-
sive valve clearance will result in noisy valve operation
and abnormal wear of the valves and rocker arms. The
intake and exhaust valves are adjusted with the valve in
the closed position.
2.
The intake valve and exhaust valve are adjusted to .0079
in. (0.20 mm) with the temperature at 70 F (21 C).
Turn the engine by using the belt on the crankshaft pul-
ley. Rotate the engine in the direction of rotation
(clockwise as viewed next to the flywheel) from the
water pump end.
CAUTION: Make sure the fuel rack is off to prevent
the engine from starting.
a.
Turn the engine so number 1 cylinder is on com-
pression with piston to TDC. Both push rods
should turn freely. Adjust both valves on number 1
cylinder.
b.
Revolve the crankshaft 240° to TDC mark on num-
ber 3 cylinder, and adjust both valves.
c.
Turn the crankshaft 240° to align TDC mark of
number 2 cylinder, and adjust both valves.
d.
BE SURE to tighten locking nut while holding the
ball head screw in position.
3.
Install the valve cover making sure that the gasket in
position.
FUEL LIMIT SCREW
The fuel limit screw is not adjustable. It is equipped with an
anti-tamper cap to fulfill requirements for CARB (Califor-
nia Air Resources Board) emission regulations. Service
technicians must be CARB certified to perform service on
fuel limit screw for equipment operating in California. All
other equipment can be serviced per recent service bulletins
with special tools and procedures. California service techni-
cians should see your local Thermo King dealer for recent
bulletins.
Summary of Contents for 088669
Page 4: ......
Page 8: ......
Page 12: ...Safety Precautions Rev 04 03 iv PUB126...
Page 13: ...Safety Precautions Rev 04 03 v aea105...
Page 14: ......
Page 28: ...Unit Description Rev 04 03 14 Rear View Curbside RD II SR Evaporator aea105...
Page 32: ...Unit Description Rev 04 03 18 Power Receptacle Box RD II SR 50 aea102...
Page 76: ...Refrigeration Maintenance Rev 04 03 62...
Page 77: ...Refrigeration Maintenance Rev 04 03 63...
Page 81: ...Refrigeration Maintenance Rev 04 03 67...
Page 103: ...89 Hilliard Clutch Maintenance Clutch Assembly...
Page 106: ...Hilliard Clutch Maintenance Rev 04 03 92 12 Install retaining ring Clutch Torque Values...
Page 125: ...111 Cool Cycle RD II SR with TherMax Heating...
Page 126: ...112 Condenser Cycle RD II SR with TherMax Heating...
Page 127: ...113 Heat and Defrost Cycle RD II SR with TherMax Heating...
Page 129: ...115...
Page 130: ...116...
Page 131: ...117...
Page 132: ...118...
Page 133: ...119...
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Page 136: ...122...