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Speed Level Seres - Servce & Parts Manual
January 2019
Secton 5 - Hydraulc System
IMPORTANT:
If replacing the disks and disk stampings, the new stack must be between .620 and
.630 in. thick (15.7 mm and 16 mm) (see illustration).
Install spring on top of the piston.
Install O-Ring seal in groove in the rear surface of the housing.
Install the rear shaft bearing. Make sure that the snap ring that retains the bearing rolls faces
out.
Place the rear housing onto the front housing and line up bolt holes.
Hold the motor assembly together, remove from the vise and place in an arbor press.
Press down on the rear housing until it contacts the front housing and lock the press
Install eight (8) cap-screws and torque to 45 ft. lbs. (61 Nm).
Install the drive link into the end of the shaft with the tapered end facing up.
Place the body seals in the grooves in both sides of the rotor.
Place the rotor onto the housing with the side of the rotor with the chamfer in the splines
facing the housing.
Place the manifold over the rotor with the seal groove side up.
Install the manifold seal.
Install the commutator seal into the commutator with the metal side facing out.
Use finger pressure to press the seal down flush with the surface of the commutator.
Place the commutator onto the manifold and then place the commutator onto the protruding
end of the drive link. Make sure that the seal side is facing up.
Install the remaining body seal in the groove on the end-cover.
Install the piston spring into the end-cover, then the white backup seal followed by the O-Ring
seal.
Line up the alignment pin with the hole in the end-cover and press the piston into the
endcover.
While holding the piston in place, lower the end-cover assembly onto the motor. Align the “V”
shaped marks that were made on the housing and end-cover before disassembly.
Install the seven (7) assembly bolts.
Tighten bolts in sequence (see illustration)
Pre-torque to 10 ft. lbs (13.6 Nm).
Final torque to 50 ft. lbs (67.8 Nm).
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