This article introduces Perkins 2806F Engine Inlet and Exhaust Valve Springs - Remove and Install
Removal Procedure
Start By: a. Remove the electronic unit injectors. Refer to Disassembly and Assembly, "Electronic Unit Injector -Remove"for the correct procedure.
NOTICE：
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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NOTICE：
Note: Valve springs must be replaced in pairs for the inlet valves or the exhaust valves of each cylinder. If all valve springs require replacement the procedure can be carried out on two cylinders at the same time.
The procedure can be carried out on the following pairs of cylinders. 1 with 6, 2 with 5 and 3 with 4.
Ensure that all the valve springs are installed beforechanging from one pair of cylinders to another pair of cylinders
Personal injury can result from being struck by parts propelled by a released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to release the spring force.
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2. Install Tooling (B) into the electronic unit injector sleeve. Secure Tooling (B) with unit injector clamp
(1) (not shown).
3. Tighten the nut of Tooling (B) until valve keepers
(3) are released from valve rotators (4).
Note: Ensure that valve stem seals (7) are not damaged.
4. Remove valve keepers (3) from valve rotators (4).
5. Loosen the nut to release the pressure on Tooling
(B). Remove unit injector clamp (1) (not shown).
Carefully remove Tooling (B).
6. Remove valve rotators (4) from valves (2).
7. Remove outer valve springs (6) and inner valve springs (5).
8. Remove washers (8) from the valve guide.
9. If necessary, repeat Step 1 through Step 8 toremove remaining the inlet and the exhaust valve springs.
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