Oilless Reciprocating Air Compressor Pumps
Cylinder Inspection/Replacement
Figure 9
Replace if it
is scratched
Seat
1.Remove cylinder head and valve set. Pay attention not to lose semicircular (black plastic) seat inserted at top surface of cylinder.
INSPECTION
1.Surface treated layer is worn and metal is exposed. Replace worn piston and piston ring.
2.Scuffing (damage) due to foreign matter. Replace if it is swollen by scuffing the aluminum cylinder.
3.Replace if several vertical scratches are side by side at a narrow distance.
NOTE: Blackish streaks you can feel with your nail or finger are not damage but sliding marks of piston and piston ring. You do not need to replace the piston set or cylinder even if there are several marks on the whole diameter of the cylinder.
REASSEMBLY
1.Assemble in reverse order of disassembling cylinder.
2.Direction of cylinder is set so that semicircular spot facing, to which seat (black plastic) is inserted, faces toward flywheel side.
3.Tighten cylinder bolt with designated torque (refer to chart below).
Figure 10
Cylinder
Cylinder Bolt Torque
OPS010 | OPT050, OPT150 |
OPS030 | OPT100 |
156 in. lb. | 295 in. lb. |
Head Bolt Torque
OPS010, OPS030, OPT050,
OPT100, OPT150
156 in. lb.
6