Thomas T105 User manual

T105
PUBLICATION NO. 053678
S/N LC002180-LC002185
S/N LC002192-Onward
Owner’s
and
Operator’s
Manual
Skid Steer Loader

THOMAS EQUIPMENT LIABILITY WARRANTY
THE WARRANTY IS THE ONLY OBLIGATION OF THOMAS OR A THOMAS DEALER
TO THE PURCHASER OR ANYONE ELSE CONCERNING A PRODUCT, ITS SERVICE,
ITS USE OR PERFORMANCE OR ITS LOSS OF USE OR FAILURE TO PERFORM.
NEITHER THOMAS NOR ATHOMAS DEALER HAVE MADE AND NEITHER WILL
MAKE ANY OTHER EXPRESSED OR IMPLIED REPRESENTATION, WARRANTY OR
AGREEMENT CONCERNING APRODUCT. NEITHER THOMAS NOR ATHOMAS
DEALER HAVE MADE OR WILL MAKE ANY REPRESENTATION, WARRANTY OR
AGREEMENT CONCERNING APRODUCTS MERCHANTABILITY OR OTHER
QUALITY, ITS SUITABILITY FOR PURCHASER’S PURPOSE (EVEN IF APURCHASER
HAS INFORMED THOMAS OR ATHOMAS DEALER OF THATPURPOSE), ITS
DURABILITY, PERFORMANCE OR OTHER CONDITION.
EVEN IF THOMAS OR A THOMAS DEALER WAS ADVISE OF THE POSSIBILITY OF
SUCH LOSS, NEITHER THOMAS NOR A THOMAS DEALER WILL BE LIABLE TO
PURCHASER OR ANYONE ELSE FOR ANY INDIRECT, INCIDENTAL CONSEQUENTIAL,
PUNITIVE, ECONOMIC, COMMERCIAL, OR SPECIAL LOSS WHICH IS IN ANY WAY
ASSOCIATED WITH A PRODUCT. THIS INCLUDES ANY LOSS OF USE OR NON-
PERFORMANCE OF A PRODUCT, ANY REPLACEMENT RENTAL OR ACQUISITION
COST, ANY LOSS OF REVENUE OR PROFITS, ANY FAILURE TO REALIZE EXPECTED
SAVINGS, ANY INTEREST COSTS, ANY IMPAIRMENT OF OTHER GOODS, ANY
INCONVENIENCE OR ANY LIABILITY OF PURCHASER TO ANY OTHER PERSON.
PURCHASER MAY NOT ATTEMPT TO ENLARGE ITS RIGHTS UNDER THE
WARRANTY BY MAKING A CLAIM FOR INDEMNITY, FOR BREACH OF CONTRACT,
FOR BREACH OF COLLATERAL WARRANTY, FOR A TORT (INCLUDING NEGLIGENCE,
MISREPRESENTATION OR STRICT LIABILITY) OR BY CLAIMING ANY OTHER CAUSE
OF ACTION.
THE WARRANTY IS A CONDITION OF SALE OF THE PRODUCT TO PURCHASER
AND WILL THEREFORE APPLY EVEN IF PURCHASER ALLEGES THAT THERE IS A
TOTAL FAILURE OF THE PRODUCT.
N.B. Read and practice your Thomas operating and servicing instructions. Failure to do this may
void your warranty.
PUBLICATION NO. 053678

3
INDEX
1. SAFETY PRECAUTIONS
2. CONTROLS
2. 1 Instrument Panel
2. 2 Seat and Seat Belt
2. 3 Seat Bar
2. 4 Parking Brake
2. 5 Throttle Control
2. 6 Lift Arm Supports
2. 7 Steering Controls
2. 8 Hand Controls
2. 9 Electrical Solenoid Auxiliary
2. 10 Foot Pedals
2. 11 Quick-Tach
2. 12 Electrical Panel
3. OPERATION
3. 1 Starting Instructions
3. 2 Operating Procedure
3. 3 Filling From a Pile
3. 4 Digging with a Bucket
3. 5 Leveling and Backfilling
3. 6 Auxiliary Hydraulics
3. 7 Lifting
3. 8 Towing
3. 9 Securing and Transporting
3. 10 Battery Maintenance and Boosting
3. 11 Lower Lift Arms
4. MAINTENANCE
4. 1 Preventative Maintenance Service Schedule
4. 2 Daily Service Checks
4. 3 50 Hour Service Check
4. 4 Service Access
4. 5 Final Drive Maintenance
4. 6 Hydraulic / Hydrostatic System Maintenance
4. 7 Engine Maintenance
4. 8 Air Cleaner Maintenance
4. 9 Electrical System
4. 10 Tire Maintenance
4. 11 Trouble Shooting
4. 12 Hydraulic / Hydrostatic Circuit
4. 13 Special Tools
5. SPECIFICATIONS
5. 1 Loader Specifications
5. 2 Torque Specifications
5. 3 Sound Power Level
5. 4 Decals, Warning
6. ATTACHMENTS AND BUCKETS
6. 1 Thomas Approved Buckets and Attachments

This warning indicates
hazards or unsafe
practices which COULD
result in minor personal
injury or product or
property damage.
CAUTION
This warning indicates
hazards or unsafe
practices which COULD
result in severe personal
injury or death.
WARNING
This warning indicates an
immediate hazard which
WILL result in severe
personal injury or death.
DANGER
Instructions are necessary
before operating or
servicing this machine.
Read the operators
manual and service
decals on the loader.
Follow warnings and
instructions in this
manual when making
repairs, adjustments or
servicing. Check for
correct operation after
adjustments and repairs.
IMPORTANT
This notice shows
important procedures
which must be followed
to prevent damage to the
loader or attachment.
IMPORTANT
4
FOREWORD
This book has been written to give the Owner / Operator necessary operating
servicing and preventative maintenance instructions on the loader.
Read this manual completely and know the loader before operating or servicing it.
Do not do any service procedures that are not in the Operator’s manual.
Only service personnel that have had training in the service of this loader can do these
service procedures.
Reference Information
Write the correct information for your loaders in the spaces below. Always use these
numbers when referring to your loader.
Model No.
Serial No.
Dealer Name
Address
Phone
Throughout this manual the terms DANGER, WARNING and CAUTION are used to
indicate the degree of hazard in terms of personal safety. These words will be used in
conjunction with the Safety - Alert symbol, a triangle with an exclamation mark.
Throughout this manual, the term IMPORTANT is used
* To indicate that instructions are necessary before operating or servicing the
loader.
* To show important procedures which must be followed to prevent damage to
the loader or attachment.

5
1. Read this manual carefully before using the loader.
Working with unfamiliar equipment can lead to
accidents.
2. Do not allow anyone to ride on the loader with the
operator.
3. Make sure the control locks and the seat bar are
installed and functioning at all times.
4. Never run the engine in a closed building without
adequate ventilation, as the exhaust fumes can cause
death.
5. Always fasten the seat belt around your waist before
starting the engine. Never fasten the seat belt behind
you.
6. Never attempt to start the engine while standing
beside the unit unless as specified in this manual or
under specific service and backhoe operation
procedures. Start the engine only while sitting in the
operator’s seat with the seat belt fastened around
you. Always check to make certain that the seat
cushion is secured to the frame.
7 Keep the operator’s area free of debris.
8. Never enter or leave the loader while the engine is
running. Always lower the lift arms down against
the frame, drop the attachment down to contact the
ground, set the parking brake and shut off the
engine prior to leaving the loader.
9. If the unit is equipped with a cab enclosure kit
always close the door prior to operating the loader
lift arms.
10. Do not operate the loader unless all safety
equipment, shields, seat belt, seat bar, hydraulic
controls, parking brake, operator guard, and lift arm
supports are working properly, as well as all safety
and instruction decals are in place.
OPERATING THE LOADER
1. Always drive the loader at speeds compatible with
safety, especially when operating over rough
ground, crossing ditches or when turning.
2. Avoid jerky turns, starts, stops, or reverses.
3. Use care when operating on steep grades to
maintain proper stability.
4. Do not turn the loader while the lift arms are in the
raised position.
5. Be careful when driving through door openings or
under overhead objects. Always make sure there is
sufficient clearance for the operator’s guard.
6. When travelling on public roads, know the local
rules and regulations and make sure your loader is
equipped with the proper safety equipment.
7. Always be sure of water, gas, sewage and electrical
line locations before you start to dig.
8. Watch out for overhead and underground high-
voltage electrical lines when operating the loader.
9. Always park the loader on level ground where
possible. If the loader is to be parked on an incline,
always lower the attachment so it contacts the
ground, set the parking brake and block the wheels.
10. Do not leave the loader when it is in motion.
11. Do not dismount from the loader and leave the
loader lift arms raised, unless following specific
service procedures. Always lower the lift arms down
against the frame and drop the attachment down to
contact the ground.
12. Always be watchful of bystanders when operating
the loader.
13. Always carry the attachment low for maximum
stability and visibility.
14. Exercise extreme caution when operating the loader
with a raised attachment.
15. Never attempt to lift loads in excess of loader
capacity.
16. Check that the foot pedals are locked before getting
out of the operator’s seat.
MAINTENANCE
1. Stop the engine before performing any service on
the loader.
2. Never refuel the loader while smoking or with the
engine hot or running.
3. Replace all missing, illegible or damaged safety and
warning decals. See section 5.4 for list.
4. Do not modify or alter, or permit anyone to modify
or alter this loader or any of its components or any
loader function.
5. Do not bypass the safety system. Consult your
Thomas
Equipment Dealer if your safety controls are
malfunctioning. Use jumper cables only in
recommended manner. See section 3.10
6. Do not make mechanical adjustments while the
loader is in motion or when the engine is running.
However, if minor engine adjustments must be
made, securely block the loader with the wheels
clear of the ground, and use extreme caution.
7. Do not attempt to repair or tighten hydraulic hoses
when the system is under pressure, when the engine
is running or when the lift arms are raised.
8. Do not get under the attachment or lift arms or
reach through the lift arms when they are raised.
9. Never attach the chains or ropes to the operator’s
guard for pulling purposes, as the loader can tip
over.
1...SAFETY PRECAUTIONS
The following precautions are suggested to help prevent accidents.
A careful operator is the best operator. Most accidents can be avoided by observing certain precautions. Read and take the
following precautions before operating this loader to help prevent accidents. Equipment should be operated only by those
who are responsible and instructed to do so.

10. Whenever servicing or replacing pins in cylinder
ends, buckets,
etc., always use a brass drift and a
hammer. Failure to do so could result in injury from
flying metal fragments.
11. Cooling system operates under pressure which is
controlled by the radiator cap. It is dangerous to
remove the cap while system is hot. Always turn cap
slowly to the first stop and allow the pressure to
escape before removing the cap entirely.
12. Keep the operator and foot pedal areas free from
debris.
13. For lifting and towing instructions, refer to
sections 3. 7 and 3. 8 of this manual.
START SAFELY
1. Sit in the operator’s seat and adjust it so you can operate
all of the controls properly.
2. Adjust the seat and fasten the seat belt. Cycle the
controls to make sure they are in the locked or neutral
position. Lower the seat bar.
3. Know the exact starting procedure for your machine.
See Section 3 for the manufacturer’s instructions for
starting.
6
To avoid personal injury,
lower the lift arms, shut off
the engine, raise the seat bar
and cycle the hydraulics to
ensure they are locked.
Then, unlatch the seat belt
and exit the loader. Do not
enter or exit with the engine
running unless as specified
in this manual or under
specific service and backhoe
operating procedures.
WARNING
This engine is equipped
with glow plugs. Do not
use ether or any high
energy fuels to assist
starting.
IMPORTANT
To prevent personal
injury do not operate the
loader without lowering
the safety bar, fastening
the seat belt and keeping
feet on the control pedals
or cab floor.
WARNING
To prevent personal
injury do not start the
engine unless you are in
the seat with the seat belt
fastened around you.
WARNING
C360
PARK SAFELY
Select level ground whenever possible. If you must park on
a slope or incline, position the machine at right angles to
the slope. Lower the attachment to the ground, engage the
parking brake and block the wheels (C359).
C359
1...SAFETY PRECAUTIONS

7
2...CONTROLS
2. 1 Instrument Panel
2. 2 Seat and Seat Belt
2. 3 Seat Bar
2. 4 Parking Brake
2. 5 Throttle Control
2. 6 Lift Arm Supports
2. 7 Steering Controls
2. 8 Hand Controls
2. 9 Electric Solenoid Auxiliary
2. 10 Foot Pedals
2. 11 Quick - Tach
2. 12 Electrical Panel
2...CONTROLS

8
2...CONTROLS
1. Lift Arm Supports:
For safety while performing service or maintenance,
the loader is equipped with a lift arm support device.
Refer to section 2.6 for details.
2. Left Signal Indicator Light:
This light will illuminate when the operator uses the
optional left signal (if equipped).
3. Auxiliary Front Indicator Light:
This light will illuminate when the loader auxiliary
hydraulic front switch (if equipped) is turned on.
4. Brake Indicator Light:
The brake light will illuminate when the parking
brake is engaged.
5. Work Light Indicator:
This light will illuminated when the loader
headlights are turned on. This will serve as a
reminder to turn them OFF when the loader is not in
use.
6. Right Signal Indicator Light:
This light will illuminate when the operator uses the
optional right signal (if equipped).
7. Hydraulic Oil Temperature Indicator:
This light will illuminate when the oil temperature
has exceeded recommended levels. Shut off the
engine immediately and determine the cause.
8. Hydraulic Oil Pressure Indicator Light:
This light will illuminate when there is low hydraulic
oil pressure. If this light illuminates, shut off the
engine and determine the cause.
9. Coolant Temperature Indicator Light:
This light will illuminate if there is a rise in engine
temperature. If this occurs, shut off the engine
immediately and determine the cause.
10. Seat Belt Indicator Light:
This light will illuminate when the seat belt is
unfastened.
11. Alternator Indicator Light:
This light will illuminate when the alternator is not
producing sufficient current.
12. Engine Oil Pressure Indicator:
This light will illuminate when the engine loses
lubrication pressure. Shut off the engine immediately
and determine the cause.
13. Pre-heat Indicator Light:
This light will illuminate when the ignition key is
turned counter clockwise to activate the engine glow
plugs.
14. Rotary Beacon Indicator:
This light will illuminate when the optional rotary
beacon (if equipped) is turned on.
15. Hazard Light Switch:
This switch is a toggle switch. Push up to turn the
optional hazard light (if equipped) on.
16. Rotary Beacon Light Switch:
This switch is a toggle switch. Push up to turn the
optional rotary beacon light (if equipped) on.
17. Dipped Beam Light Switch:
This switch is a toggle switch. Push up to turn the
work lights on. The light is located on the front of
the loader.
18. Auxiliary Hydraulics Front Switch:
This switch is a toggle switch. Push up to provide a
continuous flow of hydraulic oil to the quick
couplers when using an attachment.
2.1 INSTRUMENT PANEL
C3066 fig. 2.1
20
321 1
15
5
4
2
1
10
9
8
718
To prevent personal
injury never add fuel to
the loader when the
engine is running or is
hot. NO SMOKING!
WARNING
This engine is equipped
with glow plugs. Do not
use ether or any high
energy fuels to assist
starting.
IMPORTANT
To prevent personal
injury do not start the
engine unless you are in
the seat with the seat belt
fastened around you.
WARNING
19
16
17
12
6
13 14
11

19. Work Light Switch:
This switch is a toggle switch. Push up to turn the
optional work light (if equipped) on. The light is
located on the back of the loader.
20. Fuel Gauge/Hour Meter:
The fuel gauge indicates the quantity of fuel
remaining in the fuel tank. The hour meter records
the number of engine operating hours and has a
total of 9999.9 hours.
21. Ignition Switch:
The ignition switch is a four (4) position switch:
‘OFF’, ‘PRE-HEAT’, ‘RUN’ and ‘START’. Turn
the key counter clockwise to engage engine ‘PRE-
HEAT’. Turn the key clockwise to the ‘START’
position, this engages the starter. The key will be in
the ‘RUN’ position when released. Turn the key to
‘OFF’ to shut off the engine and remove the key.
2. 2 SEAT AND SEAT BELT
The loader is equipped with a deluxe seat. The seat can
be adjusted forward or back for operator comfort. (Fig.
2.2A).
For your safety the loader is equipped with a seat belt.
Before starting the loader adjust and fasten the beat belt
(Fig. 2.2B) around you. The seat and seat belt also have
integrated safety lock switches whereby the operator
must be seated in the seat with the belt securely fastened
before the loader can be operated.
9
2...CONTROLS
fig. 2.2B
C2698
fig. 2.2A
C2699
Fully retract the lift arm
supports before raising
or lowering lift arms.
IMPORTANT
To prevent personal
injury do not start the
engine unless you are in
the seat with the seat belt
fastened around you.
WARNING
Seat Adjust
Seat Belt Mechanism
Release

10
2. 3 SEAT BAR
For operator protection the loader is equipped with a seat
bar.
To raise the seat bar, lift up on the bar (Fig. 2. 3A). In the
up position, the seat bar activates the park brake.
Before exiting the loader always check hand control
levers by cycling them to be sure they are in the neutral
position. The loader must be started with the operator
seated in the loader and the seat bar in the up
position.When down, the seat bar releases the park brake
(Fig. 2. 3C).
2. 4 PARKING BRAKE
The loader is equipped with park brakes, located inside the
torque motor. The brakes are activated and de-activated by
the seat bar, via charge pressure. When the seat bar is in
the up position, the brake is activated (Fig. 2.3A). When
the seat bar is in the down position, the brake is off (Fig.
2.3C).
The loader has a parking brake indication light to warn that
the brake is engaged. When the seat bar is in the down
position, activation of the emergency brake can be carried
out by pushing on the button (optional), located on the
ROPS in front of the Left Control Handle.
2...CONTROLS
To avoid personal injury,
lower the lift arms, shut off
the engine, raise the seat bar
and cycle the hydraulics to
ensure they are locked. Then,
unlatch the seat belt and exit
the loader. Do not enter or
exit with the engine running
unless as specified in this
manual or under specific
service and backhoe
operating procedures.
WARNING
C-689 fig. 2. 3C
To avoid personal injury
do not enter or exit the
loader with the engine
running unless as
specified in this manual
or under service
procedures and backhoe
operation.
WARNING
C999 fig 2. 4c
Optional Emergency Brake Button
Seat Bar DOWN
(Parking Brake Off)
C3163 fig. 2.3A
Seat Bar UP
(Parking Brake On)

11
2. 5 THROTTLE CONTROL
The diesel engine throttle control, is the lever located on
the left hand side of the loader next to the steering control
lever (Fig. 2. 5A) Engine start and stop are controlled
electrically by the ignition key. (FIG. 2. 5B)
Before shutting off the engine, return the throttle control to
idle position and allow the engine to cool at least 2
minutes. Pushing the lever full forward increases the
engine speed to maximum high idle. Pulling the lever back
decreases the engine RPM.
The engine should always be operated at full speed and the
loader travel speed controlled with the steering control
levers. (See section 2. 7)
2. 6 LIFT ARM SUPPORTS
For safety while performing regular service or
maintenance work, the loader is equipped with lift arm
supports.
The lift arm supports, when extended, prevent the lift arms
from dropping if hydraulic pressure is relieved or the foot
control pedals are accidentally cycled.
To operate the lift arm supports, first remove any bucket or
attachment from the quick-tach; raise the lift arms to full
height and shut OFF the engine. Raise the lift arm support
handles (Fig. 2. 6A) up and push out toward lift arms to
extend the lift arm supports. (Fig. 2. 6B)
Fully retract the lift arm
supports before raising
or lowering lift arms.
IMPORTANT
C -729 fig. 2. 6A
C-839 fig. 2. 5A
2...CONTROLS
To avoid personal injury,
lower the lift arms, shut off
the engine, raise the seat bar
and cycle the hydraulics to
ensure they are locked. Then,
unlatch the seat belt and exit
the loader. Do not enter or
exit with the engine running
unless as specified in this
manual or under specific
service and backhoe
operating procedures.
WARNING
P
R
E
H
E
A
T
P
R
E
C
H
A
U
F
F
A
G
E
S
T
A
R
T
E
R
S
W
I
T
C
H
C
O
N
T
A
C
T
S
T
A
R
T
D
E
M
A
R
R
A
G
E
C3158
fig .2. 5B
C730 fig. 2. 6B

12
2...CONTROLS
Faster - Slow - Neutral - Slow - Faster
C2701 fig. 2. 7A
To avoid personal injury
do not start the engine
unless you are in the seat
with the seat belt
fastened around you
unless specified in this
manual or under specific
service and backhoe
operating procedures.
WARNING
To avoid personal injury
always carry the load
low.
WARNING
Faster - Slow - N - Slow - Faster
C696
fig. 2. 7B
FORWARD
C697
REVERSE
C698
LEFT TURN
2. 7 STEERING CONTROLS
The two steering levers control speed, direction and
turning the loader. The R.H. lever controls the wheels on
the R.H. side of the loader and the L.H. lever controls the
wheels on the left hand side of the loader. The loader speed
is controlled by the amount each lever is moved from
centre or neutral position. (Fig. 2. 7A) The further away
from neutral the faster the travel speed. For maximum
power and slow travel speed move the control levers only
a small amount. To drive the loader forward in a straight
line, move both control levers forward the same amount.
(Fig. 2. 7B)
To drive the loader in reverse in a straight line, move both
control levers back the same amount (Fig. 2. 7B). The
loader is turned by moving one lever further forward than
the other. To turn right move the left lever further than the
right lever, to turn left move the right lever further than the
left lever. For the loader to turn or “skid-steer” within its
own length, one lever is moved forward and the other
back. This causes the wheels on one side to turn forward
and the wheels on the other side to reverse turning the
loader. (Fig. 2. 7B)
2.8 HAND CONTROLS (OPTIONAL)
Hand controls to operate the loaders lift arm and bucket
hydraulic system as well as the loaders travel speed and
direction are available. Refer to section 2. 7 for instruction
on steering controls.
C699
RIGHT TURN

13
2...CONTROLS
LIFT ARM and BUCKET CONTROLS:
The right hand lever controls the bucket tilt cylinders (Fig. 2.
8A). Moving the left hand control lever to the left will cause
the lift cylinders to extend, raising the loaders lift arms.
Moving the control lever to the right causes the lift cylinders to
retract, lowering the lift arms. Moving the control lever to
extreme right will place the lift arms in float position. This
allows the bucket to follow the contour of the ground as the
loader moves backward.
When the control levers are released they will automatically
return to the neutral position stopping all hydraulic movement
and travel speed. Before exiting the loader, shut off the engine
and lower the lift arms completely down to the frame and
ground the attachment. Raise the seat bar to the locked
position. Move both levers to the left and right to ensure the
hydraulic controls are locked before you get out of the loader.
AUXILIARY HYDRAULICS:
The foot pedal is used to engage the loaders auxiliary hydraulic
circuit to power an attachment such as a post hole auger.
Pressing on the toe of the pedal provides hydraulic flow to the
female quick - connect coupling located at the front of the lift
arms. Firm pressure on the toe of the pedal will lock it into
detent position providing a continuous flow of hydraulic oil to
the attachment.
Pressing on the heel of the pedal provides hydraulic flow to the
quick-connect coupling reversing the flow of hydraulic oil. If
not locked in detent position, releasing the pedal will cause it
to return to the neutral position stopping all hydraulic flow.
Once the pedal is locked in detent, it can be returned to neutral
by tapping the heel of the pedal.
When the auxiliary hydraulic system is not in use return the
pedal to the neutral position otherwise starting the loader may
be difficult or impossible and damage to the starter motor may
occur.
To prevent personal
injury do not start the
engine unless you are in
the seat with the seat belt
fastened around you.
WARNING
Return the auxiliary
hydraulic foot pedal to
neutral position when not
in use.
IMPORTANT
C3165 fig. 2.8A
Reverse
Raise
Lift
Arms
Lower
Forward
Roll Back
Dump Reverse
Forward

14
2. 9 ELECTRICAL SOLENOID AUXILIARY
(OPTIONAL)
A switch located in the L.H. steering control lever (Fig. 2. 9A)
is used to engage the loaders auxiliary hydraulic circuit to
power attachments such as post hole augers, sweepers etc.
CONTROLS:
By pressing and holding the switch in position 1 (Fig. 2. 9A)
provides hydraulic flow to the female quick connect coupling
located at the front of the lift arms (Fig. 2. 9B). Releasing the
switch returns the auxiliary hydraulic circuit to neutral,
stopping hydraulic flow.
By pressing and holding the switch in position 2 (Fig. 2. 9A)
provides hydraulic flow to the male quick connect coupling
located at the front of the lift arms (Fig. 2. 9B). Releasing the
switch returns the auxiliary hydraulic circuit to neutral,
stopping hydraulic flow.
For continuous flow to the auxiliary hydraulic circuit, a toggle
switch is located on the Instrument Panel. Placing the switch in
the ON position provides continuous hydraulic flow to the
female quick connect coupling located at the front of the lift
arms (Fig. 2. 9B). To stop hydraulic flow to the auxiliary
hydraulic circuit, return the switch to the “OFF” position.
When the switch on the instrument panel is in the ON position,
the switch located in the L.H. control lever is not operable.
NOTE: The optional left hand control lever auxiliary control
switch operates a horn, if equipped.
To avoid personal injury,
lower the lift arms, shut off the
engine, raise the seat bar and
cycle the hydraulics to ensure
they are locked. Then, unlatch
the seat belt and exit the
loader. Do not enter or exit
with the engine running unless
as specified in this manual or
under specific service and
backhoe operating procedures.
WARNING
fig. 2. 9A
C3166
Fig. 2. 9B
C - 641
MALE QUICK CONNECT
FEMALE QUICK CONNECT
2...CONTROLS
Control Lever Switch (L.H.)
Seat side
ROPS side
2
1
NEUTRAL

15
2...CONTROLS
When the auxiliary circuit is not in use and before starting the
loader, ensure the switch located in the. instrument panel is in
the off position, otherwise starting the loader may be difficult
or impossible and damage to the starter may occur. If for any
reason the loader stops or loses current when the electric
solenoid is engaged, it can be disengaged by simply turning off
the switch located in the upper panel, or by depressing the
poppet located at either end of the control valve (Fig. 2.9B).
2.10 FOOT PEDALS
Operation of the lift cylinders, bucket tilt cylinders and
auxiliary hydraulic circuit are controlled by foot pedals
(Fig. 2. 10) connected to a hydraulic control valve. The
hydraulic control valve is a series type valve which allows
simultaneous use of both the lift and bucket tilt circuits.
Lift – The L.H. pedal is the lift control (Fig. 2. 10). To raise
the lift arms press on the heel (2) of the pedal. To lower the lift
arms press on the toe (1) of the pedal. Firm pressure on the toe
(1) of the pedal will lock the lift arms in float position. This
allows the bucket to follow the ground as the loader moves
backward.
Auxiliary Hydraulics – The center pedal is used to engage
the auxiliary hydraulic circuit to power an attachment such as
a backhoe. Pressing on the toe (3) of the pedal provides
hydraulic pressure to the female quick - connect coupling
located at the front of the lift arms. Firm pressure on the toe (3)
of the pedal places the valve in detent position providing a
continuous flow of hydraulic oil to the attachment. Pressing on
the heel of the pedal (4) provides hydraulic pressure to the male
quick-connect coupling reversing the flow of hydraulic oil.
When the auxiliary circuit is not in use return the foot pedal to
neutral position otherwise starting the loader may be difficult
or impossible and damage to the starter may occur.
Bucket Tilt – The R.H. pedal is the bucket tilt (dump)
control. Pressing on the toe (5) of the pedal will dump the
bucket. Pressing on the heel (6) of the pedal will roll the bucket
back.
To avoid personal injury,
lower the lift arms, shut off
the engine, raise the seat bar
and cycle the hydraulics to
ensure they are locked. Then,
unlatch the seat belt and exit
the loader. Do not enter or
exit with the engine running
unless as specified in this
manual or under specific
service and backhoe
operating procedures.
WARNING
Return auxiliary
hydraulic foot pedal to
neutral position when not
in use.
IMPORTANT
C - 318 fig. 2. 10
C - 702 fig. 2. 9B
Return the auxiliary control
switch to OFF when not in
use otherwise starting may
be impossible and damage
to the starter may occur.
Return toggle switch to
neutral.
IMPORTANT

16
2. 11 QUICK - TACH
The loader is available with a Thomas Quick - Tach. The
Thomas Quick - Tach is designed to fit Thomas approved
attachments.
The quick - tach, which is standard equipment, allows
changing from one attachment to another quickly without
having to remove bolt or pins. To operate, simply lift the
two over - centre locking levers to disengage the lock pins
(Fig. 2. 11B). Tilt the quick-tach frame forward (Fig. 2. 11A)
with the bucket tilt cylinders and drive into the attachment.
Retract the bucket tilt cylinders which will line up the
bottom of the attachment with the quick-tach lock pins. Shut
off the engine. Push the locking levers down (4) (Fig. 2.
11B) extending the lock pins (5) through the attachment.
Before operating the attachment check that the locking pins
are correctly engaged.
After hook up the
attachment check to be
sure pins and locking
levers are fully engaged.
WARNING
1108 Fig. 2.11A
C-660 C-661
Fig. 2.11A
Fig. 2. 11A
C3069 C3070 fig. 2. 11B
5
4
5
fig. 2. 11B
2...CONTROLS
4
5
4
5
4

17
2. 12 ELECTRICAL PANEL
The loader is equipped with a 12 volt, negative ground
electrical system. The fuse and relay panel is located in the
engine compartment just in front of the battery box. The
panel consist of the following:
1. Glow Plug Relay
2. Starter Relay
3. Fan Relay
4 Main Electrical Circuit Breaker
FUSE PANEL
5. Valve Locks / Park Brake
6 Fan
7. Electric Fuel Shutoff
8. Spare
9. Horn
10. Solenoid Auxiliary
11. Alternator
12. Spare
STARTER
RELAY
GLOW
PLUG
RELAY
2...CONTROLS
FAN
RELAY MAIN
ELECTRICAL
CIRCUIT
BREAKER
1
3 2
4
C-897
GROUND
59
610
711
812
10
10
10
10
10
10

18
3...OPERATION
3. 1 Starting Instructions
A. Pre - Starting Inspection
B. Starting Procedure
C. Shut - Off Procedure
3. 2 Operating Procedure
3. 3 Filling From a Pile
3. 4 Digging With a Bucket
3. 5 Leveling and Backfilling
3. 6 Auxiliary Hydraulics
3. 7 Lifting
3. 8 Towing
3. 9 Securing and Transporting
3. 10 Battery Maintenance and Boosting
3. 11 Lowering Lift Arms
3...OPERATION

19
3. 1 STARTING INSTRUCTIONS
A. Pre-Starting Inspection
Before starting the loader complete the
following inspection:
1. Check the hydraulic oil level, engine oil
level, engine coolant level and fuel supply.
2. Check the air filter indicator.
3. Check for fuel, oil and hydraulic leaks.
4. Check lights, battery level and cables.
5. Check tire pressure:
8.50 X 15 30 - 35 P.S.I. (207 - 241 kPa)
10.50 x 15 30 - 35 P.S.I. (207 - 241 kPa)
6. Check wheel nut torque 100 - 110 ft. lbs. (136 - 149
Nm)
7. Lubricate all grease fittings.
8. Check the condition and operation of all safety decals
and equipment – Ensure all shields and safety screens
are in place. If necessary repair or replace before
starting.
For complete daily servicing refer to section 4. 2.
B. Starting Procedure – Diesel
1. Ensure the seat bar is in the UP position and the
steering controls are centered and the hydraulic
controls are locked.
2. Adjust and fasten the seat belt securely around you.
3. Place the throttle control in idle position.
4. Turn the ignition key counter clockwise to activate the
glow plugs. Hold approximately 15 seconds. Both the
alternator and engine oil pressure warning lights
should be on.
5. Turn the key clockwise to start position to engage the
starter. Do not crank the starter for more than 15
seconds. If the engine fails to start turn the key counter
clockwise and pre - heat again.
6. When the engine has started the engine oil pressure
and alternator warning lights should go out. If they
don’t, shut - off the engine immediately and determine
cause. Allow the engine to warm up for five minutes
before operating. When ready to operate, lower the
seat bar and advance the throttle to full on position.
C. Shut-Off Procedure
1. Park the loader on level ground. If it’s necessary to
park on a slope, position the machine at right angles to
the slope.
2. Lower the lift arms and ground the attachment.
3. Return the throttle control to idle position. If the
engine is hot allow it to idle until normal. At least 2
minutes.
4. When the engine is cool, turn the ignition key to the
OFF position and remove the key.
5. Never enter or exit the loader when the engine is
running unless as specified in this manual or under
specific service and backhoe operating procedures.
6. Place the auxiliary foot pedal in neutral position. If the
auxiliary foot pedal is left in detent, restarting the
machine may be impossible. If equipped with an
electric solenoid make sure the switch is in the OFF
position.
7. Raise the seat bar to apply the park brake. Turn the
ignition switch to the OFF position, unfasten the seat
belt, and ensure the pedals are locked by rocking them,
and ensure the steering levers are in neutral.
3...OPERATION
This engine is equipped
with glow plugs. Do not
use ether or any high
energy fuels to assist
starting.
IMPORTANT
WARNING
To avoid personal injury,
lower the lift arms, shut off
the engine, raise the seat bar
and cycle the hydraulics to
ensure they are locked. Then,
unlatch the seat belt and exit
the loader. Do not enter or
exit with the engine running
unless as specified in this
manual or under specific
service and backhoe operating
procedures.
To prevent personal
injury do not operate the
loader without lowering
the safety bar, fastening
the seat belt and keeping
feet on the control pedals
or cab floor.
WARNING
WARNING
To avoid personal injury,
do not start the engine
unless you are in the seat
with the seat belt fastened
around you. Do not enter
or exit with the engine
running unless as specified
in this manual or under
specific service and
backhoe operating
procedures.

20
3...OPERATION
Always let the engine
warm completely before
you begin operation each
day.
IMPORTANT
C-705
fig. 3.3A
fig. 3.3B
LH
RH
LH
RH
3. 2 OPERATING PROCEDURES
1. When learning to use the loader operate at a slow rate.
2. Take advantage of the efficient operation of the loader.
Keep the travel distance as short as possible. Keep the
work area small so the cycle time is short.
3. Keep the work area as level as possible.
4. Decrease cycle time by “skid” turning (section 2 .7) rather
than a go backward-go forward turn.
5. Fill the bucket to rated capacity. Turning is easier with a
full load than with a partial load. Keep the loaded bucket
close to the ground when transporting.
6. Tilt the bucket as you raise the lift arms or drive up a
slope. This will prevent material from falling off the back
of the bucket.
7. Do not drive across a slope. Always go up or down a slope
with the heavy end of the loader pointing up towards the
top of the slope.
3. 3 FILLING FROM A PILE
Push down on the toe of the lift arm pedal and lower the lift arms
completely down (Fig. 3. 3A). Push the toe of the bucket pedal
and place the cutting edge of the bucket on the ground. For hand
control units, move the L.H. control lever towards you and lower
the lift arms completely down.Move the R.H. control lever away
from you (Fig. 3. 3A) and place the cutting edge of the bucket on
the ground.
Drive the loader forward slowly. As the bucket begins to fill push
on the heel of the bucket pedal to raise the front of the bucket
(Fig. 3. 3B) and push on the heel of the lift arm pedal to raise the
lift arms. When the bucket is full back away from the pile. For
hand control units, move the R.H. control lever towards you to
raise the front of the bucket, and move the L.H. control lever
away from you to raise the lift arms (Fig. 3. 3B). When the bucket
is full back away from the pile.
C-708
C-706