Separating High-Stage And Low-Stage; Disassembly - mycom 1612LSC series Instruction Manual

5.4.7 Separating High-stage and Low-stage

Separate the high-stage and low-stage when
inspect the high-stage thrust bearing block or pull
out each stage's rotor is required.
Structurally, it does not matter even if separated
at the first step of disassembly.

5.4.7.1 Disassembly

a) As explained in Section 5.3.5 of this chapter, put the compressor on a special table and remove the
bolts from the lower side. Then, remove the remaining hexagon socket head cap screws [18-2].
At this moment, the high-stage of the compressor is spaced apart the work bench. Brace the
high-stage with a rectangular piece of wood or the like to prevent it from falling when disassembled.
b) Drive alignment pins [19-2] into suction cover [5-1].
c) Since the bearing head [11-2] and suction cover are stuck together with the gasket [17], screw the
previously removed bolts [18-2] into two jacking threaded holes on the bearing head to push out the
suction cover evenly.
Do not insert a screwdriver or chisel into the gap.
d) On the M rotor axis there are power transmission gear couplings [151 to 161].
Move the casing in parallel with the axis to separate the driving side and the driven side in the axial
direction.
Low-stage After Separation
* Above pictures are gear coupling before the design modification of February, 2011.
Compound 2-stage Screw Compressor
1612LSC Speed Increaser Type
Separating High-stage and Low-stage
Removing Driven Hub
5.4 Disassembly and Inspection
5-27
2202L5JE-DA-C5-N_2015.05.
5 Maintenance and Inspection