Multi-function valve torque
Frame size Torque
030 – 100 89 N•m [66 lbf•ft]
130 – 250 210 N•m [155 lbf•ft]
Multi-function valve cartridges - pre 1988
Removal
1. Remove multi-function valves using hex wrench listed in table.
Multi-function valve wrench size
Frame size Wrench size
030 – 100 1-1/4 inch
130 – 250 1-5/8 inch
2. Remove and discard O-rings (P03 and P06).
3. It is not necessary to remove the bypass function (P14) except for cleaning. Wrench size is 1-1/16.
Multi-function valves are sold as complete units only. O-rings may be purchased separately.
4. To retain pressure setting, do not disassemble bypass function (P14).
5. Remove retaining ring (P22) with a snap ring pliers.
6. Remove poppet seat (P12).
7. Remove internal parts (P21, P15, (P14, P09, and P11).
Inspection
Clean and inspect all disassembled parts.
Multi-function valve - pre 1988
Reassembly
1. Lubricate and install internal components (P01, P11, P09, P14, P15, and P21).
Service Manual
Series 90 Pumps
Minor repair
46 520L0818 • Rev 0101 • August 2015
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