WycoTool Hydraulic Paving Vibrators - Manual (Page 18)

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Wyco Tool Company
e) Hose, Hydraulic Motor and Alternate
Hydraulic Motor Seal Removal
1) Protective hose removal
Loosen or remove the hose clamp (29)
from the end of the protective hose (27).
Remove the rubber plug (30) from the end of
the protective hose.
Generally, the protective hose (27) and the
hose clamp (29) need to be cut off. Take care
not to damage the hydraulic hoses (15,16).
Remove the rubber plug (25) from the upper
end of the mounting bracket.
Clamp the bracket (17) in a vise and
unscrew the motor housing (13) (right
hand thread) using a Girth-Grip wrench or
pipe wrench.
ote: The hydraulic hoses need to turn
with the motor housing inside the angle
bracket while unthreading.
Unscrew the hydraulic hoses attached to the
motor and install temporary ¼ NPT and 3/8
NPT plugs to prevent dirt from entering
hydraulic motor.
2) Motor Housing Removal
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.
3) Hydraulic Motor Removal
To remove hydraulic motor (14) from the
motor housing (13), clamp the motor
housing in a vise and remove the three socket
head cap screws (11) and lock washers (12).
ote: Never clamp the hydraulic motor
in vise or apply wrenches to it. The
hydraulic motor is made of aluminum and
any deformation can cause internal
damage.
If there has been silicon sealant applied, peel
off the sealant at the hydraulic motor to
motor housing interface. Thread a matching
2 or 3 inch long pipe nipple into each port of
the hydraulic motor and hand tighten. Clamp
both nipples close to the