Powerex Medical Packing System MPQ - Manual (Page 13)

Figure 10
6
Oilless Reciprocating Air Compressor Pumps
OPS010 OPT050, OPT150
OPS030 OPT100
Cylinder Bolt Torque
156 in. lb. 295 in. lb.
OPS010, OPS030, OPT050,
OPT100, OPT150
Head Bolt Torque
156 in. lb.
Cylinder Inspection/Replacement
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 9
Seat
Cylinder
Replace if it
is scratched