Allmand — Correct Filling and Operating Procedure
Maintenance · Reservoir
From a Allmand service manual covering: M-250 Series, M-258, M-259, M-301, M-303, M-304, M-310, M-311, M-313, M-314, M-319, M-326…. Check it applies to your exact model before use.
Before you start
- Do not use a solid plug or a fill cap without a filler/breather element or damage will be caused to pump and/or reservoir.
Procedure
- Operate unit several times starting with short cylinder strokes and increasing length with each successive stroke.
- Recheck oil level often and add as necessary to keep pump from picking up air.
- After system is completely bled, check oil level in reservoir and install the filler/breather plug provided.
Source: Allmand service 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.