Quantcast THERMOSTATIC PILOT VALVE (4L7108)

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HYDRAMECHANICAL PROTECTIVE SYSTEM
SPECIFICATIONS
THERMOSTATIC PILOT VALVE
(4L7108)
Temperature at which valve
opens................................................99 2C (210 3F)
ACCESSORY (SHUTOFF) DRIVE GROUP
(1)
Distance dowels extend from
(8)
Drive gear. Tighten the bolts that hold drive gear
housing ................. 6.0 + 0.5 mm (.236 + .020 in.)
(8) and the camshaft drive gear as follows:
(2)
Diameter of gear shaft
a.  Use hand pressure to turn and hold
- (new) .... 15.890 0.013 mm (.6256 + .0005 in.)
camshaft drive gear in its of normal
Bore in bearings for gear
direction of rotation. This removes all gear
shaft........ 16.027 + 0.013 mm (.6310 + .0005 in.)
clearance (backlash) between camshaft
(3)
Diameter of
drive gear and the idler gear.
bearings.... 20.70 + 0.013 mm (.8150 + .0005 in.)
b.  Install drive gear (8) to hold camshaft drive
Bore in housing for the
gear to the camshaft.
bearings.......... 20.66 + 0.03 mm (.813 + .001 in.)
c.  Tighten the bolts in steps to a torque of 100
15 Nm (75 11 lb. ft.)
Distance bearings are installed from ends
of bore .................. 1.5 + 0.5 mm (.059 + .020 in.)
d.  Hit the face of drive gear (8) and tighten the
bolts to a torque of 100 15 Nm (75 11
(4)
Install the seal with the lip toward the engine as
shown. Put clean engine oil on the lip of the
lb. ft.).
seal.
e.  Again hit the face of drive gear (8) and
(5)
Distance bearing is
again tighten the bolts to a torque of 100 4
installed ...................... 26 + 1 mm (1.02 + .04 in.)
15 N-m (75 + 11 lb. ft.).
(6)
Distance dowels extend from
NOTE: If necessary, repeat the steps above until the
gear .................... 9.5 +- .0.5 mm (.374 + .020 in.)
bolts hold torque (cannot be moved) to make sure the
(7)
Distance two dowels extend from
camshaft drive gear is in full contact with the taper of the
housing ................. 6.0 + 0.5 mm (.236 + .020 in.)
camshaft.
NOTE: FOR TORQUE VALUES NOT GIVEN, SEE THE FIRST
PAGE OF SPECIFICATIONS FOR GENERAL TIGHTENING TORQUES
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