Allis-Chalmers — Fuel filter replacement - spin-on type
Maintenance · Fuel filters
From a Allis-Chalmers operator's manual covering: 16000MKII, 17000MKII, 21000MKII, 25000MKII. Check it applies to your exact model before use.
Before you start
- Do not use any tools to tighten filter. Do not use sealing compounds or lubricants.
Procedure
- Clean all dirt from around filter, filter head, and surrounding area.
- Loosen vent screw and open drain cock; allow filter to drain completely.
- Unscrew and remove filter and o-ring from filter head; discard filter and o-ring.
- Clean dirt and sediment from annular groove in filter head.
- Position new o-ring on threaded insert; apply light coat of oil to filter base gasket.
- Screw new filter by hand until gasket contacts filter head; tighten 1/2 to 3/4 turn more.
- Close primary filter drain cock and tighten vent screw.
- Prime fuel system.
Tools required
- Hand Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Tighten filter 1/2 to 3/4 turn more after gasket contact
Source: Allis-Chalmers 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.