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TT-1710

6/17b

INSTALLATION INSTRUCTIONS

Original Issue Date:

11/16

Model:

20--200 kW with Fast-Response

r

X Alternator

Market:

Industrial, Residential/Commercial, and Marine

Subject:

FRX Activator Service Kit GM101821-S

Introduction

Use the FRX activator service kit when replacing the
FRX activator board on 20--200 kW generator sets that
are equipped with a Fast-Response

r

X alternator.

Read the entire installation procedure and compare the
kit parts with the parts list at the end of this publication
before beginning installation. Perform the steps in the
order shown.

Safety Precautions

Observe the following safety precautions while
performing this procedure.

Accidental starting.

Can cause severe injury or death.

Disconnect the battery cables before

working on the generator set.

Remove the negative (--) lead first

when disconnecting the battery.

Reconnect the negative (--) lead last

when reconnecting the battery.

WARNING

Disabling the generator set. Accidental starting can

cause severe injury or death.

Before working on the

generator set or equipment connected to the set, disable the

generator set as follows: (1) Move the generator set master

switch to the OFF position. (2) Disconnect the power to the

battery charger. (3) Remove the battery cables, negative (--)

lead first.

Reconnect the negative (--) lead last when

reconnecting the battery. Follow these precautions to prevent

starting of the generator set by an automatic transfer switch,

remote start/stop switch, or engine start command from a

remote computer.
(Decision-Maker

r

3+ and 550 Controllers)

Disabling the generator set. Accidental starting can

cause severe injury or death.

Before working on the

generator set or equipment connected to the set, disable the

generator set as follows: (1) Press the generator set off/reset

button to shut down the generator set. (2) Disconnect the

power to the battery charger, if equipped. (3) Remove the

battery cables, negative (--) lead first. Reconnect the negative

(--) lead last when reconnecting the battery. Follow these

precautions to prevent the starting of the generator set by the

remote start/stop switch.
(RDC, DC, RDC2, DC2, Decision-Maker

r

3000, 3500, and

6000 Controllers)

Procedure

Note:

Read all safety precautions at the beginning of

this publication before performing any work on

the generator set.

1.

Remove the generator set from service.

1.1 Press the generator set master control

OFF/RESET button or move the generator set

master switch to the OFF position.

1.2 Disconnect power to the battery charger, if

equipped.

1.3 Disconnect the generator set engine starting

battery, negative (--) lead first.

2.

Access the alternator end of the

generator set.

2.1 Open the enclosure panels as needed.

2.2 Remove the junction box rear cover.

2.3 Remove the alternator (rodent) guard, if used.

Summary of Contents for TT-1710

Page 1: ...ct the negative lead last when reconnecting the battery Follow these precautions to prevent starting of the generator set by an automatic transfer switch remote start stop switch or engine start command from a remote computer Decision Makerr 3 and 550 Controllers Disabling the generator set Accidental starting can cause severe injury or death Before working on the generator set or equipment connec...

Page 2: ...igure 2 Removing the FRX Activator Board 3 3 Access the back of the FRX activator board and disconnect the exciter armature leads AC1 AC2 and AC3 and rotor assembly leads F1 and F2 by removing the 5 elastic stop nuts Note the lead terminals and their positioning on the FRX activator board silkscreen See Figure 3 and Figure 4 GC70113B 1 Exciter armature lead AC2 2 Exciter armature lead AC1 3 FRX ac...

Page 3: ...cal connection mounting hole to the mounting hole above the keyway See Figure 8 1 1 Thread forming Torx head screws M7500CE 05020 85 qty 6 Side View Figure 6 Spacer GM98936 Installation 4 2 Route the exciter armature and rotor leads AC1 AC2 AC3 F1 and F2 around the outer diameter of the spacer to the inside to eliminate slack See Figure 7 and Figure 8 Note Lead connection locations are identified ...

Page 4: ...gure 9 Activator Board 4 6 Replace and tighten the 4 screws attaching the LED optic board holder to the end bracket and torque to 6 2 Nm 4 6 ft lbs See Figure 10 SB 742 1 LED optic board holder 2 Screws qty 4 1 2 Figure 10 Replacing LED Optic Board Holder 4 7 Install the alternator rodent guard to the end bracket if equipped 4 8 Replace the junction box panels 4 9 Replace the enclosure panels if e...

Page 5: ...5 qty 6 3 Terminal X 283 58 qty 5 not shown 4 Stainless steel hex nut M934 04 SS qty 5 5 Activator board GM98939 1 6 Thread forming screw X 6071 8 7 Stainless steel nylock nut M985 04 SS qty 5 3 6 4 1 2 Listed in order of assembly Side View 7 Figure 11 Kit Components Shown in Order of Assembly ...

Page 6: ...6 TT 1710 6 17 Notes ...

Page 7: ...TT 1710 6 17 7 Notes ...

Page 8: ...stems Asia Pacific Headquarters 7 Jurong Pier Road Singapore 619159 Phone 65 6264 6422 Fax 65 6264 6455 Availability is subject to change without notice Kohler Co reserves the right to change the design or specifications without notice and without any obligation or liability whatsoever Contact your local Kohlerr generator set distributor for availability 2016 and 2017 by Kohler Co All rights reser...

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