Schaerer 7300 - Primary Thermostat Removal; Installation

SECTION IV
MAINTENANCE / SERVICE
Page 4-65Printed in U.S.A.
4.40 Primary Thermostat
Removal / Installation
A. Removal
(1) Perform steps 1 thru 17 of para 4.26A (removing
motor pump).
(2) Remove nut (1, Figure 4-69), lockwasher (2),
and three wires (3) from terminal post of
motor (4).
(3) Remove shrink wrap tubing and then desolder
wire of primary thermostat (5) from wire (6).
(4) Cut two cable ties and remove primary thermo-
stat (5) from motor (4).
B. Installation
(1) Slide a 3/4" piece of shrink wrap tubing on wire
of primary thermostat (5).
NOTE
Use proper solder techniques and 60/40 resin core
solder.
(2) Solder wire of primary thermostat (5) to
wire (6).
(3) Slide shrink wrap tubing over bare wire; then
use a heat source to shrink the tubing firmly into
place.
(4) Install three wires (3) on terminal post of motor
(4) and secure with lockwasher (2) and nut (1).
(5) Position primary thermostat (5) and secondary
thermostat (7) on motor (4) and secure with two
cable ties.
(6) Perform steps 5 thru 25 of para 4.26B (installing
motor pump).
Figure 4-69. Primary Thermal Fuse
Removal / Installation
2
3
4
5
CABLE
TIES
1
TERMINAL
POST
3/4" PIECE OF
SHRINK WRAP
TUBING
3
6
7
CA818900
© Schaerer Mayfield USA, Inc. 2004