Hyster-Yale Forklift S135FT

WARNING! Cleaning solvents can be flammable and toxic and can cause skin irritation. When using cleaning solvents, always follow the solvent manufacturer's recommended safety procedures

WARNING! Compressed air can move particles so they cause injury to the user or to other personnel. Make sure the path of the compressed air is away from all personnel. Wear protective goggles or a face shield to prevent injury to the eyes

CAUTION! To prevent possible gouging of the cylinder head surfaces, use care when removing gasket material

Clean carbon from valve ports and combustion chambers in cylinder head. Use care not to scuff the combustion chambers

Using cleaning solvent, clean Valve stem keys, Valve spring cap, Valve spring, Valve and Cylinder head

When cleaning is complete, dry components with compressed air

Remove all gasket material from surfaces of cylinder head

Inspect cylinder head for following defects

WARNING! Cleaning solvents can be flammable and toxic and can cause skin irritation. When using cleaning solvents, always follow the solvent manufacturer’s recommended safety procedures

WARNING! Compressed air can move particles so they cause injury to the user or to other personnel. Make sure the path of the compressed air is away from all personnel. Wear protective goggles or a face shield to prevent injury to the eyes

Using cleaning solvent, clean the Valve stem keys

Using cleaning solvent, clean the Valve spring cap

Using cleaning solvent, clean the Valve spring

Dry components with compressed air

Sign off on the cleaning procedure

CAUTION! To prevent possible gouging of the engine block surfaces, use care when removing gasket and sealing material

WARNING! Cleaning solvents can be flammable and toxic and can cause skin irritation. When using cleaning solvents, always follow the solvent manufacturer's recommended safety procedures

CAUTION! Clean all, debris and coolant from the engine block cylinder head bolt holes. Failure to do so may result in damaged threads, improperly tightened fasteners or damage to components

Clean all remaining sealing or gasket material from sealing surfaces

Clean engine block with solvent

Flush engine block with water or steam

Clean following engine block components

After cleaning engine block, spray or wipe cylinder bores and machined surfaces with clean engine oil

Rotate crankshaft to place piston in cylinder being tested at top dead center (TDC) of the compression stroke, with both valves closed. Lock crankshaft balancer in place to prevent piston movement

Install the J 35667-A Cylinder Head Leakdown Tester (Hyster P/N 4060759) tester in the spark plug port on cylinder to be tested

Apply shop air pressure to J 35667-A Cylinder Head Leakdown Tester (Hyster P/N 4060759) tester and adjust according to manufactures instructions

Cylinder leakage exceeding 25 percent?

Air leakage from intake or exhaust system may indicate a worn or burnt valve or a broken valve spring

Inspect cylinder head for a broken valve spring

Remove and inspect suspect cylinder head