Daikin ZH5LMGU [28/58] Replacement of o ring of drive shaft bushing continuous capacity control unit

Si50-402 Overhaul Instructions

Semi-Hermetic Single Screw Compressor Version IV 27

4.4 Replacement of O-ring of Drive Shaft Bushing

(Continuous Capacity Control Unit)

1. Disassembling bushing

Remove the fixing bolt from the bushing and slightly pull out the bushing as it is mounted

onto the drive shaft. Then, remove the bushing as shown in Fig. 4-29 below.

Fig. 4-29 Removing bushing

2. Replacing O-ring and reassembling bushing

Replace the O-ring of the drive shaft bushing and then apply grease (Shell Alvania Grease

S(RL) No. 2) to the O-ring and also to the inside of the bushing as shown in Fig. 4-30 below.

After that, put the drive shaft in the discharge end cover, and finally reassemble the bushing.

Furthermore, if the bushing has any flaw or abnormal wear inside (grease applied part),

replace the bushing.

Fig. 4-30 Sectional view of bushing

Fig. 4-31 Reassembling of bushing

Apply grease to these places.