Schaerer 7300 - Hand Control Button Board Removal; Installation; Hand Control Board Removal; Installation

SECTION IV
MAINTENANCE / SERVICE
4.4 Hand Control Button Board Removal /
Installation
A. Removal
(1) Disconnect hand control coil cord from table.
(2) Remove six screws (1, Figure 4-4) and separate
upper case (2) from lower case (3).
(3) Remove sixteen switch actuator plates (4) from
upper case (2).
(4) Remove four screws (5) from button board (6).
(5) Carefully disconnect button board (6) from
connector of hand control board (7).
B. Installation
CAUTION
Use care when connecting button board
to hand control board so that pins of
button board connector do not get bent or broken.
Broken or bent pins will result in board malfunction.
(1) Carefully connect button board (6) to hand
control board (7).
(2) Secure button board (6) to hand control board
(7) with four screws (5).
(3) Install sixteen switch actuator plates (4) in
upper case (2).
(4) Install lower case (3) on upper case (2) and
secure with six screws (1).
(5) Connect hand control coil cord to table.
Figure 4-4. Button Board Removal / Installation
Page 4-4Printed in U.S.A.
CA7620
LEVEL
UNLOCK
ENABLE
LOCK
DISABLE
7100
SMI
1
2
3
4
7
5
6
4.5 Hand Control Board Removal / Instal-
lation
A. Removal
(1) Remove hand control button board (Refer to
para 4.4).
(2) Tag and desolder seven wires (1, Figure 4-5)
from top side of hand control board (2).
(3) Tag and desolder one wire (3) from back side of
hand control board (2).
(4) Remove four screws (4) and standoffs (5) from
hand control board (2).
B. Installation
(1) Install four standoffs (5) on hand control board
(2) and secure with four screws (4).
© Schaerer Mayfield USA, Inc. 2004