Allmand — Replacing Section Seals
Repair & overhaul · Gresen V-10 control valve
From a Allmand operator's manual — check it applies to your exact model before use.
Before you start
- Use care when sliding work sections on tie rods to avoid dislodging O-rings.
Procedure
- Disassemble valve as described in previous section.
- Remove old O-ring section seals; do not scratch sealing surface areas.
- Thoroughly clean O-ring counter bores and surfaces of each valve section.
- Place valve assembly on a flat surface for reassembly.
- Replace four O-ring seals; seal kit contains seals for one work section/inlet cover.
- Replace work sections on assembly studs in reverse order of removal.
- O-ring counter bores with O-rings should be to your right (downstream side).
- Replace lock washers and nuts; torque stud nuts evenly to 15 ft. lbs.
Specs & values
- Stud nuts torque: 15 ft. lbs.
Source: Allmand operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.