Hitachi ZW180 Operator's Manual page 226

12. One point to propeller shaft center support(19)
--- every 1000 hours
13. One point to center propeller shaft universal front (20)
--- every 2000 hours
14. One point to center propeller shaft splines (21)
--- every 2000 hours
One point to center propeller shaft universal rear (22)
--- every 2000 hours
MAINTENANCE
19
21
22
22
7-26
ZW180, ZW220, ZW250
ZW310
M4GB-07-007
20
M4GB-07-014
M4GB-07-015
M4GB-07-016