CR-MM-1-0-00
PS-28 Cruiser
PS-28N Cruiser
CHAPTER 12 – INSTRUMENTS AND AVIONICS
Date of issue: 2018-09-27
Revision No.: 22
12 - 53
(d) Unscrew and remove the nut (10) with the drain sump bowl (9); unscrew and remove the
nut (7) and remove the drain sump body (6) from the bracket (11).
12.3.44
Installation of drain sump
Type of maintenance: line
Authorization to perform:
See point 2.5.3.
Tools needed:
-
Cobra hose clip pliers
-
wrench No. 27
(a) Tilt forward the left seat back.
(b) Insert the drain sump body (6, Fig. 12-42) into the hole in the bracket (11) and fasten it
with the nut (7).
(c) Check the condition of the O-ring (8) a transparent drain sump bowl (9) - replace damaged
parts.
(d) Insert the O-ring (8) to the drain sump body (6), set the drain sump bowl (9) to the drain
sump body, screw and carefully tighten the nut (10).
CAUTION:
DURING INSTALLATION OF THE DRAIN SUMP AVOID INCORRECT
SEATING OF THE O-RING BETWEEN THE DRAIN SUMP BODY AND THE
DRAIN SUMP BOWL.
(e) Remove the protective covers from the hoses and hose sockets of the drain sump body.
(f) Connect the hoses (5) to the ports on the drain sump body (6) and secure them with hose
clips (4).
(g) Carry out check of pitot-static system tightness test (see 12.4.1).
12.3.45
Draining of drain sumps
NOTE:
If you find impurities or water in pitot-static system drain sumps, these sumps
must be drain.
Tools needed:
-
wrench No. 27
(a) Tilt forward the left seat back.
(b) Unscrew and remove the nut (10, Fig. 12-42) with the drain sump bowl (9).
(c) Clean and dry the drain sump bowl (9).
(d) Check the condition of the O-ring (8) a transparent drain sump bowl (9) - replace damaged
parts.
(e) Insert the O-ring (8) to the drain sump body (6), set the drain sump bowl (9) to the drain
sump body, screw and carefully tighten the nut (10).
CAUTION:
DURING INSTALLATION OF THE DRAIN SUMP AVOID INCORRECT
SEATING OF THE O-RING BETWEEN THE DRAIN SUMP BODY AND THE
DRAIN SUMP BOWL.
(f) Tilt backward the left seat back and carry out check of pitot-static system tightness test
(see 12.4.1).