Eaton TRSM1500 Transmission Combination Cylinder Removal and Installation Guide

Here is an instruction show you guide on how to remove and install combination cylinder for fuller heavy-duty Eaton transmissions TRSM1500.

 

 

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How to Remove the Combination Cylinder Assembly

1.Drain lube.
2.At the combination cylinder cover, remove the 5 capscrews with washers.
3.Remove the cylinder cover and gasket.

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4.If necessary, remove the insert valve retaining nut from the cylinder cover. Remove the insert valve from the bore.

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5.Remove the 15/16” nut on the range yoke bar.
6.Remove the 3/4” nut on the reduction yoke bar

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7.Remove the cylinder housing and gasket.

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8.Remove the range and reduction pistons from the cylinder bores.

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9.If necessary, remove the O-rings from the range cylinder bore and the reduction cylinder bore.
10.If necessary, remove the O-rings from the range piston I.D. and O.D. and the reduction piston O.D.

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How to Install the Combination Cylinder Assembly
Special Instructions
Apply Eaton lubricant #71206 or equivalent to all shift cylinder assembly and spool valve O-rings so a film covers the entire surface.
Apply Eaton rust preventative #71213 or equivalent to all shift cylinder walls and yoke bars, cover the entire yoke bar surface that comes in contact with the shift cylinder O-ring.

1.Lightly lubricate O-rings with Eaton® Fuller® Silicone lubricant P/N 71206 or equivalent.
2.Install O-rings into range and deep reduction shift cylinders.

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3.Install O-rings onto range and reduction pistons.

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4.Install gasket and shift cylinder.

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5.Install range piston with flat side to rear. Install range piston nut and torque to 70-85 Lb•ft.

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6.Install deep reduction piston with flat side to rear. Install nut and torque to 50-65 Lb•ft.

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Note: If reusing existing nut, make sure nylon locking material is in good shape, if not, use new nut.
7.Lightly lubricate insert valve O-rings with Eaton® Fuller®
Silicone lubricant P/N 71206 or equivalent. Install insert valve with flat side to the inside. Install insert valve retaining nut and torque to 40-50 Lb•ft.

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8.Install gasket and cover. Apply Eaton® Fuller® thread sealant P/N 71205 or equivalent to capscrew threads. Install capscrews and torque to 35-45 Lb•ft.

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More repair case for Eaton,please refer to:Eaton Transmission Trouble Repair

 

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