New Holland LS140 Workshop Manual page 189

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14. Attach the back plate, 1, to the pump housing

making sure the replaceable plate, 2, stays in

position; a small amount of Vaseline between

plate and housing will help hold it in place. Install

a new gasket, 3, between the plate and housing.

Install the four cap screws and torque the pump

housings to back plate bolts to 37 - 42 N·m (27 -

31 ft. lbs.).

NOTE: When the back plate assembly is in place be-

fore inserting bolts, a small gap (1/8, approximately)

between the housing gasket and valve plate is nor-

mal. Tightening the bolts brings the housing against

the rotating group spring resulting in an internal

spring load to valve plate and piston slippers. After

torquing the housing bolts, the shaft should be turned

easily with an 8, pliers. The shaft should have some

rolling resistance but should not be tight (locked

down) or rotate easily. If these conditions occur, the

pump is assembled incorrectly and requires tear-

down and reassembly.

15. Install new O rings on the relief valve caps at 4,

and install the valves into the valve plate with

springs and caps, torque to 135 N·m (100 ft. lbs.).

NOTE: The spring is located over the larger end of

the relief cartridge at 1. The shorter tapered end, 2,

of the relief cartridge must be inserted into the valve

plate first at 3.

SECTION 29 - HYDROSTATIC TRANSMISSION

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