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WIM-TD-002_C
WARNING:
The WPT mechanical PTO is capable of side load and inline power transmission applications. Special care should
be exercised when installing the PTO in an inline application. Due to engine movement and other factors that may
cause misalignment, WPT recommends that a flexible coupling or drive shaft be used to join the PTO and driven
shaft. If a coupling is used, ensure that it has sufficient horsepower capacity and that shafts are in line within the
limits specified by the coupling manufacturer. If you are unsure about the procedure to align these shafts, consult
the coupling manufacturer or WPT Power.
3.5.0
CLUTCH ADJUSTMENT
The WPT mechanical PTO uses an adjusting collar to adjust for clutch wear. If the engagement force
reaches 2/3 of maximum specified torque, clutch slips, heats excessively, or operating lever fails to
stay engaged, clutch adjustment is required.
3.5.1
Remove inspection cover nameplate.
3.5.2
Disengage adjustment pin for
“C” style clutches
, pull pin out. For
“SP” style clutches
,
disengage adjustment pin by pushing pin in with a screwdriver.
“C”
Figure 4
“SP”
3.5.3
Rotate adjusting ring clockwise to increase clutch engagement force. For
“C”
style pull pin and
rotate shaded assembly. For
“SP” style push pin in and rotate ring.
“C” STYLE
Figure 5
“SP” STYLE
3.5.4
Adjust clutch engagement force until the hand lever force required to engage the clutch is
within the range specified on the inspection cover nameplate or Table 2 in this section.
3.5.5
Check engagement force with a torque wrench using the cast hex on the lever or check hand
lever engagement force using spring scale at hand lever
length “A” shown in of
Figure 6 &
Table 2
