Service Manual

ProPass 200Page 3 -- 36Hydraulic System

Check Valve Service

The ProPass control manifold includes four (4) check

valves used for circuit control. Check valve location is

identified in Figure 37. Remove check valves from mani-

fold for cleaning or replacement. Replace seal kit on

check valves if removed from manifold. Torque check

valves from 12 to 14 ft--lb (16 to 18 N--m) when in-

stalling them into m anifold.

NOTE: Check valves CV3 and CV4 are not used in the

ProPass 200 hydraulic system.

Refer to Hydraulic Schematics in this chapter for circuit

location of check valves.

Orifice Service

The control manifold includes four (4) orifice fittings that

thread into specific manifold ports. Access to these ori-

fice plugs requires removal of the manifold plug. Orifice

locationsareshowninFigure38.

NOTE: Orifice fitting ORF3 is not used in the ProPass

200 hydraulic system.

Refer to Hydraulic Schematics in this chapter for circuit

location of the orifice fittings.

Figure 37

1. Check valve CV1

2. Check valve CV2

3. Check valve CV3

4. Check valve CV4

Figure 38

1. Orifice ORF1 (0.040)

2. Orifice ORF2 (0.020)

3. Orifice ORF3 (0.068) 4. Orifice ORF4 (0.020)