Perkins 1506 — Belts - Inspect/Adjust (Model LG) - Fan Belts
Adjustments
For the Perkins 1506, from the Perkins owner's manual.
Applies to: Perkins 1506A engine, Perkins 1506C engine, Perkins 1506D engine
Procedure
- Loosen bolts (1) and (2), also loosen nut (3).
- Loosen bolt (4) and nut (7).
- Adjust nuts (5) and (7) to increase or decrease tension on union (6); tension belts to 730 N (164 lb).
- Tighten nuts (5) and (7) securely.
- Tighten bolts (1) and (2) and nut (3) to 89 N·m (65 lb ft); tighten bolt (4) to 100 N·m (73 lb ft).
Tools required
- suitable belt tension gauge Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Fan belt tension 730 N (164 lb)
- Bolts torque 89 N·m (65 lb ft)
- Bolt (4) torque 100 N·m (73 lb ft)
- New belts fan belt 912 N (205 lb); recheck after 10 hours
Source: Perkins owner'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.