WycoTool Hydraulic Paving Vibrators - Manual (Page 13)

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Wyco Tool Company
CHAPTER 4
SERVICE A D ASSEMBLY I STRUCTIO S
a) Maintenance interval
It is recommended that Wyco vibrators be
maintained at regular intervals. The
recommended maintenance interval for
vibrators operated between 8,000 VPM and
10,800 VPM is 600 hours. The recommended
maintenance interval for vibrators operated
under 8,000 VPM is 1,200 hours. These
instructions should be followed for
preventative maintenance, which includes
bearing and hydraulic motor seal replacement.
b) Special Tools Required
33 inch pipe wrench
2 inch Girth-Grip toothless pipe wrench
(straight vibrators)
3 inch Girth-Grip toothless pipe wrench (angle
vibrators)
Punch Lock clamp set
Tapered guide (used for hydraulic motor seal
installation, Wyco Tool #419754)
Large crescent wrench which opens to
2-3/8"
c) Bearing replacement
1) Head Housing Removal
See figure 1 or 2 for illustrations of item
numbers listed in parentheses.
Clamp the hydraulic motor housing (13)
in the pipe jaws of a vise. Using a large
crescent wrench, loosen the square head
housing (1) from the motor housing
(right hand threads). Unscrew until the parts
can be easily turned by hand.
2) Rotor Assembly Removal
Clamp the flats of the driver sleeve (9) in a
vise. Pull the head housing (1) off of the
rotor assembly.
ote: If there is hydraulic oil in the head,
the seal on the hydraulic motor (14) needs
to be changed as described in Section d.
If the hydraulic motor shaft cannot be turned
by hand, the motor may be locked and may
require replacement, as described is Section e.
If the rotor does not come out by hand it needs
to be tapped off. Tap on the open end of the
square head housing (1) with a rubber
hammer while rotating the housing 90 degrees
every couple of taps. Do not damage the end
of the head housing by hitting it directly with
a hammer. If the rotor is stuck in the housing,
a piece of wood can be used to protect the
head housing threads while using a hammer to
dislodge the rotor assembly.
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