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3.4.6
The pilotless PTO does not have critical endplay requirement, nor is there a requirement for
adjustment.
CAUTION:
Operating handle must be mounted in the vertical position, just over center in engagement direction, to eliminate
excessive wear in the collar, See
illustrations in Figure 2
.
3.4.7
When installing PTO with operating shaft vertical, a stop collar should be added to the shaft on the
topside for support. Failure to add stop collar will cause premature failure to the sliding sleeve
collar assembly.
Figure 3
3.4.8
Support plate is required for SP311/214/314 side load applications and recommended for in-line
applications. (See Section 3.2.1)
3.4.9
Automatic or Remote Engagement of the PTO.
3.4.9.1
This PTO design may be actuated by applying a force with a remote actuator to the
handle of the PTO. There are many acceptable methods, such as Hydraulic Cylinder,
Pneumatic Cylinder, or Linear actuator.
3.4.9.2
The actuator must be oriented such that the normal direction of the force remains
tangent to the Arc of Engagement.
3.4.9.3
Size of actuator is critical. The actuator must be of sufficient size to apply the required
amount of force on the handle. Too much force can cause permanent deformation of
the Sliding Sleeve Assembly. Too little force will cause excess slippage, damage to the
clutch and will eventually damage the Sliding Sleeve Assembly.
CAUTION
:
Actuator force must be released once PTO is engaged or sliding sleeve failure will result.
3.4.9.4
The actuator
’
s end position must be adjustable to allow the connection with the PTO
handle to be appropriately positioned. When adjustments are made to the Clutch, it is
required to test, check, and correct actuators rod length to assure proper stroke length.
The connection between the PTO Handle and Actuator must float freely after
engagement, and after disengagement of the PTO. Short life of the Sliding Sleeve
Assembly will result if slack between the handle and actuator is not maintained.
3.4.9.5
The actuators travel must be within appropriate limits to engage and disengage the PTO.
Failure to adhere to this rule will cause failure and likely breakage of the PTO’s Clutch.
3.4.9.6
See Table 2 to determine appropriate force and stroke requirements.
