CR-MM-1-0-00
PS-28 Cruiser
PS-28N Cruiser
CHAPTER 11 – ELECTRICAL SYSTEM
Date of issue: 2011-03-08
Revision No.: -
11 - 11
11.3 Removal / Installation
11.3.1 Electrical Safety
The aircraft has a low-voltage DC electrical system. When correctly maintained it is safe to
work on. But the battery can supply heavy current through low-resistance circuits (for
example, if you ground the positive output with a wrench by accident).
Always follow the usual safety practices for working on electrical equipment. Allow only
qualified persons to maintain the electrical system.
CAUTION:
DISCONNECT THE BATTERY BEFORE DOING MAINTENANCE ON THE
ELECTRICAL SYSTEM. MAKE SURE TO DISCONNECT THE NEGATIVE
LEAD FIRST.
CAUTION:
USE ONLY AIRCRAFT SPARE PARTS APPROVED BY THE
MANUFACTURER.
11.3.2 Battery removal
Type of maintenance: line
Authorization to perform:
-
Sports pilot or higher
Tools needed:
-
screwdriver
-
wrench size No.8
(a) Set the
MASTER BAT
,
MASTER GEN
switches to OFF.
(b) Remove engine cowlings.
(c) Unscrew the bolts (5, Fig. 11-3) with washers (6) and disconnect the wires (2; 3; 4) from
the battery contacts; make sure to disconnect the negative lead first.
(d) Unscrew the bolts (8) with washers (9), disconnect the battery strap (7) and remove the
battery (1) from the airplane.
11.3.3 Battery installation
Type of maintenance: line
Authorization to perform:
-
Sports pilot or higher
Tools needed:
-
screwdriver
-
wrench size No.8
(a) Install the battery (1, Fig. 11-3) into the bracket on the firewall (10).
(b) Fasten it with battery strap (7), bolts (8), and washers (9); tighten bolts so that the battery
cannot move in the bracket.
(c) Install the wires (2; 3; 4) by means of bolts (5) with washers (6); make sure you connect
the positive lead first.
(d) Grease the battery contacts with lubricating grease.
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