Subaru Robin PKX201 - Manual (Page 54)

Trash Pumps - PKX Service
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45. Position the volute back onto the front pump housing.
Note position when installing, as it is important which
way volute discharge faces. See step 3 for the correct
volute position as is installed on front pump housing.
46. Apply thread lock compound to the bolts before
installing. Using Permatex® brand such as the blue or
purple is recommened. These models are service
replaceable.
47. Torque to bolts to the specifi ed value of 12 to 15
ft.
lbs.
48. The volute and front pump housing are now ready to
be installed onto pump back plate.