Bush-whacker ST-104 User manual

2010

2
2010 ST-104
Welcome
Thank you for selecting the ST-104 Rotary Mower. Your machine has been care-
fully inspected by both the factory and the dealership prior to being received by
you to ensure that it is ready for operation.
This manual explains the proper operation of your machine. It is very important
that you read and understand these instructions before operating or maintaining
the machine. Failure to do so could result in personal injury or even death to you
or passersby. Consult your Bush-Whacker dealership if you do not understand the
instructions in this manual or need additional information.
Hall Manufacturing, Inc. reserves the right to make changes at any time without
notice or obligation. Additional copies of the manuals are available from your lo-
cal Bush-Whacker dealer.
Hall Manufacturing, Inc.
3706 E. Washington Ave., P.O. Box Drawer 5638
North Little Rock, AR 72119
[phone]

3
2010 ST-104
Table of Contents
Introductory Page ………………………………………………………...…………..2
Safety Section ….…………………………………………………………………….4-11
General Safety Instructions and Warnings…………………………………...5
Decals Placement…………………..…………………………………………6
Operations…………………………………………………………………….7-8
Attaching/Detaching Cutter…………………………………………………..9
Rollover……………………………………………………………………….9-10
Rotating Blades……………………………………………………………….10
Hydraulics…………………………………………………………………….11
Maintenance...………………………………………………………………………...12-15
General Maintenance………………………………………………………….13
At Least Twice Daily………………………………………………………….13-14
Daily…………………………………………………………………………...14-15
Every 1,000 Hours or Annually. .……………………………………………..15
Gearbox Disassembly and Assembly………………………………………………….16-17
Parts book………………………………………………………………………………19-54
Lift Type……………………………………………………………………….20-35
Pull Type……………………………………………………………………….38-51
Miscellaneous…………………………………………………………………..52-54
Warranty Information................................................................................... ................55-56
Warranty Registration Card…………………………………………………………...57-58
Notes………………..................................................................................... ............... 59

4
2010 ST-104
Safety
Section

5
2010 ST-104
Attention
Important Safety Information
Read and Study this safety information BEFORE operating this
equipment.
The use of common sense and reasonable safety precautions are a must in the operation
of this equipment. Think Safety – Accident prevention is dependant upon the personnel
involved in the operation, transport, and maintenance of the equipment. To minimize the
chance of accidents, serious injury, or even death; Safety Precautions Must Be Fol-
lowed! FAILURE TO FOLLOW SAFETY INSTRUCTIONS AND FAILURE TO
USE COMMON SENSE COULD RESULT IN SERIOUS INJURY AND/OR
DEATH TO THE OPERATOR, BYSTANDERS, PASSERSBY, OR ANIMALS IN
THE AREA.
General Safety Instructions and Warnings
Safety Decals Information
 Always keep the area around safety decals clean and free of debris so that they can be easily
seen and read.
 When installing new components to the equipment, it is necessary to obtain new safety de-
cals from your Bush-Whacker dealer and adhere them promptly and properly.
 Always keep safety decals clean, using soap and water. Do not use abrasive cleaners be-
cause they could cause damage to the decals.
 If the safety decals get damaged, or are missing, contact your local Bush-Whacker dealer to
order replacements for them.
 In order to replace the safety decals, the equipment must be clean and dry. Then remove the
adhesive backing and place it on the equipment.

6
2010 ST-104
Decals Part Numbers and Placement
2569 2572 4416 CW - 4167
CCW - 4168
540 Rpm - 4169
1000 Rpm - 4170
4415

7
2010 ST-104
NEVER operate a rotary mower with a person or animal in the
area. The blades may throw objects for great distances and can
strike a person, passersby, or animal causing serious injury or
death.
Safety Warnings
Stop operation of the machine for a passerby or if someone appears to be approaching the area.
Objects can be thrown for hundreds of yards at great speed.
ALWAYS inspect the deflector shields and/or chain guards daily to ensure
that they are in proper working order and that no chains are missing. If the
deflector shields or chain guards are not operating correctly, chain links are
missing, or the complete deflector shields or chain guards assembly is
missing, do not operate the mower. NEVER OPERATE THE MOWER
WITHOUT CHAIN GUARDS OR DEFLECTORS IN PROPER
WORKING ORDER.
Operations
Rocks, gravel, wire, rope, bricks, or similar objects are potential hazards for
rotary mowers operation. These items can cause damage to the machine; but
more importantly, they can be ejected from underneath the mower at very high
speeds, resulting in property damage, injury or even death. Always inspect the
mowing area prior to the operation of any rotary mower. If any of these objects
or similar objects are found, remove them immediately before operation.
NEVER operate the mower without the driveline safety shields in place and in
proper working order. Operation without safety shields can lead to injury or
death.
EXTREMELY IMPORTANT—Make sure all gearbox shields are in place and tightened be-
fore operating the mower. If one works loose, stop mowing and tighten immediately. NEVER
OPERATE THE MOWER WITHOUT ALL GEARBOX SHIELDS PROPERLY IN-
STALLED. OPERATION WITHOUT SAFETY SHIELDS MAY CAUSE SERIOUS IN-
JURY OR DEATH.
This mower operates at a PTO speed of 540 RPM only. Check the tractor manufacture’s
instruction manual for the proper engine RPM to achieve the proper PTO speed. DO NOT
operate the mower at any higher RPM, doing so will cause damage to the mower as well
as create an extreme hazard to the operator, passersby, or animals. Also note that doing so
will void the warranty of the machine.

8
2010 ST-104
Safety Warnings
Operations
Always inspect the area before mowing for potential mower hazards.
Remove or avoid all foreign objects such as wire, cable, metal objects, and
all other foreign material. Failure to do so could result in serious injury
to the operator or passerby from foreign material being thrown from
the mower.
Thoroughly examine the rotary mower each day before operating. Tighten
loose bolts, nuts, and hydraulic fittings. Replace all damaged or broken parts,
including hydraulic hoses. If rotary mowers are not kept in proper working
order, they could be damaged and this could result in serious injury.
NEVER engage in repair work under the mower deck or any other
part of the mower that is raised off the ground until the mower is
safely and securely supported in the raised position. Inadequate
support can result in the mower falling, which could result in seri-
ous injury or death.
Use proper signage around working area. This will help the operator
have a safe place to work, and help passers by to take appropriate
precautions.
Use the proper reflective devices on the equipment to help prevent
accidents.
Make sure that all rules of the road are followed, and Slow Moving
Vehicle (SMV) rules are also observed
NEVER ALLOW ANYONE TO RIDE ON THE MOWER OR
THE TRACTOR. This equipment, if not operated properly, could be
potentially dangerous; therefore, NEVER ALLOW A CHILD TO
OPERATE A ROTARY MOWER.
Avoid hitting hard solid objects such as large rocks, concrete culverts, guard
rails, etc. This could cause serious damage to the machine. Broken machine
parts or pieces of the object can be thrown at very high speeds. This could re-
sult in serious injury or death to persons at a considerable distance from the
rotary mower.

9
2010 ST-104
Safety Warnings
Attaching/Detaching Cutter
NEVER WORK ON THE ROTARY MOWER WITH
THE POWER ON.
Care must be taken when operating on uneven terrain, ditches, or embank-
ments. The chances of the tractor and/or mower rolling over are increased.
Also, the chance of objects being thrown by the blade are increased when
operating under these adverse conditions.
Rollover
Before approaching any rotary mower or before dismounting the tractor,
always make sure of the following:
The tractor transmission is in the parking gear, and the parking brake is set
to keep the tractor from moving while unattended.
The tractor PTO is disengaged.
The engine has stopped, the key is out of the ignition, and all moving parts
(both tractor and mower) have completely stopped. The rotating parts of
the tractor and rotary may mower continue to rotate after the PTO has been
disengaged. THE OPERATOR SHOULD REMAIN SEATED UNTIL
ALL MOVEMENT HAS CEASED!
Never use equipment around railroad tracks without direct railway supervision.
Inexperience in railway operations may cause loss of communications, loss of
signals, rail and tie damage or derailment.
NEVER railway tracks anywhere other than at normal traffic crossings.
Unauthorized machinery on railways are in extreme danger of being struck by
locomotives and railway machinery resulting in damaged equipment, serious
injury or death.
If operating along roadway, keep equipment within the lane closest to the
work area. Never operate equipment against the flow of traffic, which
could possibly result in a head-on collision causing serious injury or death.

10
2010 ST-104
OPERATE CAREFULLY! It is important to slow down when
turning and when going down slopes. Doing so could result in a roll
over and injury, or possibly death, to the operator.
Safety Warnings
Never operate the equipment without the Roll-Over Protective
Structure (ROPS) and without a seat belt. These items prevent
injury in a roll-over accident. It is also highly recommended to
wear protective equipment such as a hard hat, safety glasses,
safety shoes, and ear plugs.
Rollover
Stay away from rotating blades. Keep hands and feet clear
of rotating blades and discharge areas at all times. Never
get close to the blades until all motion has stopped and ma-
chine is turned off.
 Never operate with Cutting Head raised if bystanders or
traffic are in the area to prevent injury or death from objects
thrown by Blades.
 Stop cutting if someone comes within 300 feet. DO NOT
operate equipment with bystanders in the area! Rotary
mowers have the ability to throw debris considerable
distances when blades are allowed to strike foreign objects.
Operator must exercise caution or serious injury or even
death could result.
Never operate equipment with loose blades. Retighten after the first 8
hours of use and after blade replacement.
Never allow rotating blades to contact solid objects like rocks, posts, curbs
or guard rails. Only operate if all guards and deflectors are in place and
in good working condition.
Rotating Blades