Hale MBP Booster - Manual (Page 78)

77 Silencer Series Booster Pump, p/n: 029-0020-83-0
Preventive Maintenance
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6.6 PUMP HEAD
To service the oil seal between the pump head and gearbox or to service
the gearbox, dismantle the pump head from both units.
(See Figure 6-9: “Oil Seal Replacement / Pump Head Parts.”)
Figure 6-9: Oil Seal Replacement / Pump Head Parts
The following procedures frequently refer to Tables 6-2, and 6-3 on pape 62.
Also, please review section General Repair Guidelines, on pape 62, before
beginning these procedures.