Mitsubishi S12R - Priming Pump; Priming Pump - Operation <A-Type

8 INSPECTION AND MAINTENANCE
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
135
Pub. No. 291Y1-40720 Revision: 5
■ Priming Pump - Operate
There are two different types (A-type and B-type) of
priming pumps.
Fig. 8-15 Priming Pump
• For the location of the priming pumps,
refer to "2
ENGINE - OUTLINE" (→ Page
75).
<A-type>
1 Loosen the priming pump cap (1) by
turning it counterclockwise.
The cap (1) is released and the cap (1) is
raised.
Fig. 8-16 Priming Pump - Operation <A-type>
2 Move the cap (1) up and down.
Fuel is discharged.
Fig. 8-17 Priming Pump - Operation <A-type>
3 After bleeding air, turn the cap (1)
clockwise while pushing it.
• Make the cap (1) to contact with the head
packing (2).
Fig. 8-18 Priming Pump - Operation <A-type>
4 Retightened by 80 to 100°.
• Tool: Adjustable wrench
Fig. 8-19 Priming Pump - Operation <A-type>
<A-type> <B-type>
(1)
(1)
(1)
(1)
(2)
80 to 100°