Katolight — Replacing Fuel Filter / Cleaning Water Separator
Maintenance · Fuel filter and water separator
From a Katolight manual covering: 10.5 L, 12.5, D415FGJ4, D415FJJ4, D415FNJ4, D415FPJ4, D415FRJ4, D41S5FRJ4, KDGC-2001, KDGC-500, PowerTECH 10.5/12.5 L, UN-1GNOVOS. Check it applies to your exact model before use.
Applies to: Katolight D415FGJ4, Katolight D415FJJ4, Katolight D415FNJ4, Katolight D415FPJ4, Katolight D415FRJ4, Katolight D41S5FRJ4, John Deere 6125 HF 070 engine, John Deere 6125HF070 engine, Katolight 6125HF070 engine
Before you start
- Engine and fuel filter housing may be hot
Procedure
- Close fuel shut-off valve, clean area around filter.
- Remove cap from fuel filter housing.
- Operate hand primer until filter pops up to relieve vacuum.
- Remove and drain filter element into suitable container.
- Remove and clean water separator bowl with strap wrench.
- Install new dry fuel filter into housing.
- Reinstall cap hand-tight; open fuel shut-off valve.
- Restart engine and run five minutes minimum.
Tools required
- Strap wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Water separator bowl-to-filter housing: 5 Nm (44 lb-in)
- Fuel level in housing between MIN and MAX marks
Full service-parts list: Katolight D415FGJ4 →, Katolight D415FJJ4 →, Katolight D415FNJ4 →, Katolight D415FPJ4 →, Katolight D415FRJ4 →, Katolight D41S5FRJ4 →, John Deere 6125 HF 070 engine →, John Deere 6125HF070 engine →
Source: Katolight 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.