Eaton X70, Руководство по ремонту, Страница: 13 / 24

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X70 PLUG-IN MOTOR REPAIR MANUAL E-MOPI-RR009-E—March 2019 www.eaton.com
Disassembly – Rotating Kit Assembly
Disassembly of rotating assembly is required for inspection
only.
1. Remove the nine piston assemblies, shoe retainer, and
shoe retainer pivot from cylinder barrel. The piston block
assembly doesn’t need to be disassembled unless the
internal pins or spring are damaged. Note:- Wave washer
should be replaced once the Rotating Kit is disassembled.
2. To remove spring, place one of the flat washers over the
3/8 in. x 3-1/4 in. cap screw. Put cap screw through the
center of the cylinder barrel and apply the second washer.
Let washer rest on the three pins and retain with nut.
Turning nut and compressing spring inside the barrel.
Use a pair of retaining ring pliers and remove the internal
retaining ring. Remove nut, bolt, and the two washers
from barrel. Remove the washer, spring, second washer,
three pins, and pin keeper at the same time.
Inspection
•
Inspect cylinder block face for wear, scratches, and/
or erosion. If cylinder block condition is questionable,
replace the entire rotating group.
•
Check each cylinder block bore for excessive wear. Use
the piston and shoe S/A for this purpose. The pistons
should be a very close fit and slide in and out of the
cylinder block bores. NO BINDING CAN BE TOLERATED.
If binding occurs, clean the cylinder block and pistons.
Lubricate the cylinder block bores with clean fluid and try
again. Even minor contamination of the fluid may cause a
piston to freeze up in a cylinder bore.
•
Inspect each of the nine piston and shoe subassemblies
for a maximum end play of 0.005 inch between the
piston and shoe. Also check the face dimension of each
shoe. The face dimension must be within 0.001 inch.
•
Inspect spider and spider pivot for wear and/or scratches.
If condition is questionable, replace entire rotating group.
Inspection
•
This dimension must be maintained in all nine shoes
within 0.001 inch.
Shoe face rides on swash plate. Shoe must swivel smoothly
on ball. End play must not exceed 0.005 inch.
Reassembly – Rotating Kit Assembly
To reassemble the rotating kit assembly complete the
following steps:
1. Compress the pin keeper and install in the spline of the
cylinder barrel. Install the three pins with head end to the
inside of the barrel and position in the special grooves of
the cylinder barrel spline.
2. Install the washer, spring, and second washer into the
cylinder barrel. Use the two 3/8 in. I.D. washers, nut, and
3/8 in. x 3-1/4 in. cap screw to compress the spring and
retain with retaining ring. Remove the nut, cap screw, and
the two washers.
3. Install the pivot and wave washer onto the three pins,
shoe retainer on the pivot, and piston assemblies thru
the shoe retainer and into cylinder barrel, resting on shoe
retainer.