Owner's manual for the TRX-42 remote control lawn mower. Covering the operation, safety, service and maintenance, troubleshooting and warranty information.

1. 2014 TRX-42
Owner's Manual
Version 1.0
Summit Lawn Mower Co.
Summit Lawn Mower Co.
|
304 S. Central Ave. | New Albany, MS
www.SummitMowers.com
38652
|
(662)-266-7256
|

2. TABLE OF CONTENTS
Chapter 1)
Operation
Chapter 2)
Safety
Chapter 3)
Service & Maintenance
Chapter 4)
Troubleshooting
Chapter 5)
Warranty Information
CHAPTER 1
Operation

3. - The transmitter has two joysticks and a toggle switch. The
right joystick moves the mower in all directions while the left
joystick starts and stops the engine. The toggle switch is for
engaging and disengaging the cutting blades. Use slow gentle
movements with the right joystick and avoid sudden full
throttle movements keeping a finger on the joystick at all times.
You do not want to "flick" the spring loaded joystick.
- The transmitter has a green and red mark on the left
joysitck. Red will stop the engine and green will start the
engine. Avoid starting the engine while the engine is running
by glancing down at your transmitter when starting and
stopping your engine. You also want to have the blades
disengaged (toggle down to disengage) while starting the
engine.
- When powering up the system, it is best to always power on
the transmitter first and last when powering the system off so

4. the transmitter will always be able to communicate with your
mower.
- The transmitter has "trim control" to make small
adjustments to each joystick's "center". Example: If your
mower is pulling to the right when driving straight, adjust the
bottom trim control on the right joystick to the left until it
drives straight.
- The transmitter has "servo reversing". These are set and
configured from the factory to operate your mower properly.
If for some reason these are tampered with, you will need to
set them so the mower does what you tell it to do. The top
two switches on your transmitter relate to the movement
control of your mower.
- The transmitter is equipped with "channel mixing". This
allows you to control movement with one joystick instead of
"tank steer" with two joysticks. If you ever replace the
transmitter, holding both joysticks down and out while turning
the new transmitter on will activate channel mixing. It will
give 3 beeps indicating channel mixing is enabled.
- The key switch on your mower will power on your mower.
Always remember to turn it off while not in use. Keep the key
safe from unauthorized operators by keeping it in your
transmitter case.
-
The throttle and choke control is a manual design.
Half

5. throttle when engaging your blades followed by full throttle for
mowing is recommended. Choke the engine by pulling up on
the throttle lever for fast easy starting and immediately turn off
the choke when the engine starts. Make sure you are at a
safe distance from the mower when engaging the cutting
blades.
- The deck height adjustment is a manual design allowing you
to raise and lower the deck from 2-6 inches. Never raise or
lower the deck while the engine is on and always shut the
engine off before approaching your mower. Never run your
mower without the deck's discharge cover in place.
- The Transmissions have a neutral engagement lever on the
front. To put the transmissions in neutral, pull the lever to the
front and up to lock. This is a good feature to help prevent
unauthorized operators from driving your mower and for
manually pushing your mower.
Chapter 2
Safety

6. 1) NEVER operate or allow someone to operate your mower
under the influence of drugs or alcohol.
2) NEVER place your hands or feet near moving parts.
Always allow the engine to cool before servicing.
3) NEVER approach your mower with the cutting blades
engaged. Always disengage the blades before approaching
the mower.
4) NEVER adjust the deck height adjustment while the engine
is running. Hydrostatic transmissions can lunge forward if the
mower is tugged on while the engine is running.
5) NEVER operate your mower out of range. Always be at a
safe distance to observe the mower's surroundings. Be aware
of any objects that may be on the ground before mowing.
NEVER "test" the mower's 300 ft range of operation.

7. 6) NEVER allow children to operate your mower.
toy.
It is not a
7) NEVER operate your mower with the deck's discharge
cover off. Flying debris can cause serious injury or death
along with property damage.
8) ALWAYS make sure the batteries are charged before
operation. A weak mower battery can cause the on-board
electronics to have poor response characteristics. If the
battery struggles to start the mower, STOP! It is too weak to
safely operate the on-board electronics.
9) NEVER use a transmitter that has been dropped or may
have been subject to water damage. If your transmitter tells
your mower to do something, it WILL do it. Always know it is
telling your mower to do what you tell it to do.
10) In the event a manual emergency shut-off is required and
the transmitter is not responding, turn the key off to kill the
engine.
11) In the event the electronics compartment is submerged
or exposed to excessive amounts of water, do not "test" the
mower to see if it works. Replace the electronic components
that were exposed to water.
12) If servicing the cutting blades from underneath the
mower, always remove the engine's spark plug first. It doesn't

8. take much to start the engine by turning the blade. It best to
remove the deck for easy blade servicing. Simply remove the
6 linkage pins and remove the belt from the PTO under the
engine and the deck will easily slide out from the front of your
mower.
13) When mowing steep slopes, use caution not to lose
footing. When traveling from side to side, NEVER attempt a
zero-turn maneuver on a steep slope.
14) When mowing steep slopes, NEVER keep the mower on
one side for long periods at a time. While the engine is
equipped with pressurized filtration, it is still better to alternate
sides when slope mowing.
15) For slopes too steep to maintain control, and going down
hill only is the only option, keep the spark plug side of the
engine up and this should only be used for short periods and
NEVER a continuous duty technique.
Chapter 3
Service and Maintenance

9. Undercarriage tension adjustment:
The tension on the tracks should have a 1/2" sag between front
and rear rollers. To adjust the tension, move the roller axle
out by turning the tension adjustment bolt and securing it with
the locking nut to keep it in place. You want to maintain
equal distance from the end of the adjustment rail and the
tension block on both sides of the undercarriage. The chain
adjustment works the same way and needs to be adjusted first.
You want a slight 1/4" sag on one side of the chain. By
tugging on the mower you can easliy remove slack from one
side of the chain as a guide for proper tension.
Undercarriage bushings:
The bronze self impregnating bushings used on the
undercarriage rollers need to be inspected / replaced once a
year. They can ordered over the internet or picked up at a
local bearing & supply house.
Small:
1/2" I.D. x 3/4" O.D. x 1" flanged bronze bushing

10. Large:
3/4" I.D. x 1" O.D. x 1" flanged bronze bushing
The rubber tracks are aftermarket replacement tracks for a
Toro Dingo mini excavator and can be ordered over the
internet or from SummitMowers.com. Any of the parts made
by Summit Lawn Mower Co. such as hubs and rollers can also
be ordered from SummitMowers.com
Chain and Sprockets
The TRX-42 uses a #50 16T (shaft) 15T (Roller Sprocket) and a
5/8" ANSI Pitch Flex Chain available from McMaster Carr.
Brush off any debris from the chains followed by lithium chain
grease or WD-40 after each mowing is recommended.
The TRX-42 uses a Gravely ZT-42 as a foundation sharing parts
available from aftermarket suppliers (Rotary Parts & Supply)
and original Gravely replacement parts can be used if you want
OEM parts also available from Rotary.
Refer to the Kawasaki owner's manual for regular service
recommendations for the engine. When slope mowing on a
regular basis, you will want to keep the engine oil topped off at
all times and change the oil and filter every 10 hours.
WIRE DIAGRAMS:

12. The second wire diagram uses a mechanical relay to operate
the engine on/off, headlights, etc. and will be used depending
on parts availability at the time of manufacture.
For replacement parts please visit
SummitMowers.com/parts.php
Chapter 4

13. Troubleshooting
1) Mower turns over but will not start.
a) Turn the choke on by pulling up on the throttle lever and
once the engine starts turn the choke off by pressing down.
Start the engine with half throttle and move to full throttle for
mowing.
b) Check fuel level and spark plug. You can spray one mist
of engine starting fluid on the air filter.
c) Check engine shut off wires and relay to make sure the
electronics is not trying to turn off the engine as you are
attempting to start the engine. The relay should "tick" when
giving the command to shut off or start.
d) For other engine starting solutions, see the Kawasaki
owner's manual.
2) The mower pulls to one side or tries to go by itself.
a) Adjust the trim controls on the side and under the right
joystick on the transmitter.
b) Remove the control arm from the transmission servo, turn

14. on transmitter and mower (do not start engine) and set trims to
zero. Re-install control arms and make small adjustments to
trim if needed.
3) The mower will not power on.
1) Make sure the 12V mower battery is charged and holding a
charge by using a volt meter to test the battery.
2) Make sure the battery posts are not lose and the cables
are firmly connected.
2) Test the BEC regulators using a volt meter to make sure
they are delivering 4.8V DC to the receiver and 6V DC to the
transmission servos.
3) Make sure all wires and connections coming from the
electronics compartment are all in good shape.
4) I replaced the transmitter and now the mower does not
obey my commands.
a) You will need to configure the transmitter to the receiver.
First, enable channel mixing by holding the two joysticks out
and down before turning the transmitter on. The transmitter
will sound 3 beeps indicating channel mixing is enabled. Next
(with engine off) set the top two servo reversing switches on
the bottom of your transmitter so forward moves the
transmission arms up and reverse moves both down. Right
should move the (United States) passenger side arm down and
left should move it up and vise versa.
5) All functions on the transmitter work except for one
a) Test the receiver by pulling the problem channel and try

15. using another channel. If this "fixes" the problem, you will
need to replace the receiver.
b) Switch the devices on the problem channel to see if the
device is bad. For example, if one of the transmission servos
is unresponsive, switch channels 1 & 2 to determine if the servo
needs to be replaced.
*CAUTION* Remove the engine's spark plug wire before
troubleshooting engine starting problems.
c) If the engine will not try to start, and the above does not
resolve the problem, test the engine's starter solenoid with a
volt meter on the lead going to the engine starter.
d) If the engine will not try to start, also test the corresponding
relay for the engine start to hear it "tick" when giving the
command to start.
**Refer to the Kawasaki owner's manual for more engine
related troubleshooting solutions.
Chapter 5
WARRANTY INFORMATION
The Summit Lawn Mower Co includes a one year warranty
against part failure and or workmanship on all mowers
manufactured by Summit Lawn Mower Co.

16. 1) The warranty starts from the date you receive your mower
through one year thereafter.
2) Any warranty claims will be resolved with a free part
replacement including detailed instructions for replacing said
part using simple hand tools.
3) In the event a service repair shop or metal fabricator is
required to make the repairs, Summit Lawn Mower Co. will pay
for said repairs.
4) In the event a return to Summit Lawn Mower Co. is required
to make said repairs, Summit Lawn Mower Co. will pay for
shipping both ways.
5) Only in pre-agreed upon conditions will a refund be given.
Summit Lawn Mower Co.
|
www.SummitMowers.com
304 S. Central Ave.
|
New Albany, MS 38652
|
(662)-266-7256
|
NOTES:
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