Detroit Diesel — Adjust Load Limit (Hydraulic Governor)
Adjustments · Governor load limit screw
From a Detroit Diesel service manual — check it applies to your exact model before use.
Before you start
- Do not overstress the linkage.
Procedure
- With governor cover off and load limit screw lock nut loosened, adjust screw to approximately 2 in from outside face of governor sub-cap boss to end of screw.
- Place and retain governor operating lever in the full-fuel position.
- Turn load limit adjusting screw until a .020 in space exists between fuel rod collar and terminal lever.
- If adjustment cannot be made with a feeler gage, turn the load limit adjusting screw in until injector racks just loosen on ball end of control levers.
- Release governor operating lever, hold adjusting screw, and tighten lock nut; install governor cover and tighten screws.
Tools required
- Feeler gage Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 2 in initial screw setting
- .020 in space between fuel rod collar and terminal lever
Source: Detroit Diesel 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.