Figure 4.9
Figure 4.10
BLADE REMOVAL AND INSTALLATION FOR THE FOLLOWING BLADES
EB16 blade (260-069)
requires a
G 5/8
bushing and a 3/16” X 1 3/8” key.
BLADE REMOVAL PROCEDURES
1.
Remove the eight bolts holding the front gr place and remove the grill (Figure 4.1).
2.
Remove the three bolts from blade. Remove the two bolts from the bushing and hub. Put the
two bolts in the threaded part of the bushing and turn evenly until bushing separates from
hub.
BLADE INSTALLATION PROCEDURES FOR DD16
1.
Make sure that the shaft and key-way are clean and smooth before installing
the blade.
2. Insert the cap screws through the clearance holes in the bushing and place
loosely into the hub of the blade. Do not press the bushing in. Hand start
3. Insert the cap screws, turning them just enough to engage the threads in the
tapped holes on the hub. The bushing should be loose in the hub. Insert the
key into the key-way (
Figure 4.9
). Tighten two bolts drawing the bushing and
hub together.
4. Slide the blade onto the bushing/hub assembly and insert the three screws
through the blade and turn evenly but do not tighten. Make sure blade is in
line with hub then tighten screws
(Fig. 4.10)
. Locate the blade and bushing so
that the blade tips do not hit the rear grill eyelets. On some models the blade
and bushing may be in beyond or out away from the end of the shaft up to ¼”
but no further. This is necessary for proper blade clearance.
5. Tighten the cap screws progressively with a wrench. Tighten each cap screw partial turns successively until
both are tight. Final tightening should be done with torque wrench with the torque set at 7.5 ft./lbs. for each
screw. Over tightening will cause the cap screws to break or crack the blade. (
Figure 4.10
)
•
Carefully turn the blade and check for clearance between the blade and
shroud. Confirm that the blade is free to rotate without hitting other parts.
•
Reinstall the front grill and test the blower.
•
If you have any trouble removing or installing the blade on your blower,
contact the factory for assistance at 412-824-6944.
-8-
