PS-28 Cruiser
PS-28N Cruiser
CR-MM-1-0-00
CHAPTER 10 – POWERPLANT
Revision No.: 22
Date of issue: 2018-09-27
10 - 22
10.3.10
3B0R5R68C propeller installation
Type of maintenance: line
Authorization to perform:
See point 2.5.3.
Tools needed:
-
wrench size No.13
-
Allen wrench size No. 6
-
screwdriver
WARNING:
ENGINE IGNITION MUST BE SWITCHED OFF!
(a) Disconnect the battery and remove upper line of spark plugs from the engine.
(b) Check the contacting areas of the propeller flange (12, Fig. 10-14), propeller (1) and spacer
(3). Clear of all impurities.
(c) Remove protective covers from the propeller blades and carry out visual check of the
propeller integrity and condition.
(d) Check out possibly adjust the blades pitch of propeller according to the propeller manual.
NOTE:
Propeller pitch is factory set to No. 3.
(e) Insert bushings (8) into the propeller hub from the back side.
(f) Place washers (7) on the bolts (5) and insert the bolts through the assembled propeller hub.
NOTE:
Each washer (7) works in pairs with the “ramped” sides facing each other. No
other washers may be used in combination with those washers.
(g) Insert bushings (4) into the engine flange (12) from the back side, protruding into the spacer.
(h) Place spinner flange (9), spacer (3) and the assembled propeller (1) on the propeller
mounting flange (12). The hub must sit flush on the mounting flange.
CAUTION:
THE HUB MUST SIT FLUSH AGAINST THE MOUNTING FLANGE. BOLT
BREAKAGE WILL OCCUR IF NOT FLUSH.
(i) Place washers (7) on the bolt threads (5) and hand thread the nuts (6) up to the plastic stops.
(j) Using a calibrated torque wrench, torque the bolts (5) evenly using a star pattern. Tighten
the bolts in several increments up to full torque, such as 50 %, 75 %, and full torque 24–27
Nm (18–20 ft.lb).
(k) Check the propeller blades for track. The blades should track within 3/16” (4.8 mm) of each
other at the tip (see Fig. 10-12). Setting the pitch accurately is more important than track
from blade to blade.
(l) Install spark plugs to the engine. Tighten up with torque 20 Nm (
15 ft.lb.
); connect the battery.