NORAC UC5-BC-AGCO-RMC - Manual (Page 42)

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5.5.2. Leaking oil near the NORAC valve block
1. Inspect the fittings and O-rings on the pressure, tank, A and B ports. The fittings should be tightened
to 18 ft-lbs (24 Nm). Proper NORAC seals and fitting should be used.
2. Inspect the valve block for cracks.
3. Check the components in the valve block and ensure they are correctly torqued and the seals are not
damaged.
5.5.3. Leaking oil between the NORAC valve block and expansion block
1. Ensure the mating surfaces are clean and undamaged.
2. Seals must be coated with oil prior to installation.
3. Do not install the temperature probe or flat washers on the mounting bolts.
4. Ensure the mounting bolts are torqued correctly.
5.5.4. The boom slowly creeps down
1. Ensure the “Raise” lines are connected to the “B” ports and the “Lower” lines are connected to the
“A” ports. The “B” port is always the load holding port.
2. The PO check valve may be leaking. Check for debris or a damaged seal.
3. Try swapping the left and right hoses. If the problem follows the hoses it may indicate a problem with
the cylinder or sprayer’s valves.