Matco Tools DT8 User manual

Page 1
PRODUCT INFORMATION:
Study, understand and follow all instructions provided with
this product. Read these instructions carefully before installing,
operating, servicing or repairing this tool. Keep these
instructions in a safe accessible place.
INTENDED USE OF THE TOOL
Caution: To help prevent personal injury
WARNING
WARNING
DO NOT DISCARD – GIVE TO USER
The manufacturer warrants this product to the original user
against defective material or workmanship for a period of 1
year from the date of purchase.
The manufacturer reserves the right to determine whether
the part or parts failed because of defective material,
workmanship or other causes. Failures caused by accident,
alteration, or misuse are not covered by this warranty.
The manufacturer, at its discretion, will repair or replace
product covered under this warranty free of charge. Repairs
or replacements of products covered under this warranty are
warranted for the remainder of the original warranty period.
The manufacturer or its authorized service representatives
must perform all warranty repairs. Any repair to the product
by unauthorized service representatives voids this warranty.
The rights under this warranty are limited to the original user
and may not be transferred to subsequent owners.
The warranty is in lieu of all other warranties, expressed or
implied, including warranties of merchantability and fitness
for a particular purpose. Some states do not allow the
exclusion or limitations of incidental or consequential
damages, so the above limitations may not apply to you.
• Use of this product can expose you to chemicals including
ethylene glycol, gasoline vapors and engine exhaust, which
are known to the State of California to cause cancer, birth
defects, or reproductive harm. For more information, visit
www.P65Warnings.ca.gov. Always wear ANSI approved safety
equipment, safety glasses and clothing when using this
product. Study, understand, and follow all instructions
provided with this product. Failure to read and follow all
warnings and operating instructions may result in damages
and serious injury or death.
• Always wear ANSI approved goggles when using this
product. (Users and by standers).
• Never use this tool for any application other than for which
it was designed.
• Only use accessories designed for this tool.
• Never alter or modify this tool in any way.
• Improper operation and/or maintenance of the tool,
modification of the tool, or use of the tool with accessories
not designed for it could result in serious injury or death.
• Always select the correct accessories of the correct size and
design for the job that you are attempting to perform.
• Always work in a clean, safe, well-lit, organized and
adequately equipped area.
• Do not begin repairs without assurance that vehicle is in
secure position, and will not move during repair.
1 YEAR LIMITED WARRANTY
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DELUXE DIGITAL TIRE INFLATOR DT8
The DT8 Deluxe Digital Tire Inflator is designed to work with
the included locking and dual chucks to inflate, deflate and
measure pressure on truck and vehicle tires. Do not use this
tool outside of the designed intent. Never modify the tool for
any other purpose or use.
When unpacking, check the parts diagram and part number
listing on page 10 to make sure all parts are included. If any
parts are missing or damaged, please call your distributor.
BEFORE USE
Made in China
to Matco specifications
Specifications:
3 - 175psi
PSI / BAR / KPA / KGF
0.1psi
+/- 1.0 PSI
32°F - 104°F (=0°C - 40°C)
AAA battery
560 hours
FUNCTION KEY:
TWIST/THREAD LOCKING CHUCK ONTO VALVE STEM TO FULLY SEAL
Top of the line design. Coated anti-fray hose and exclusive
quick change chuck design to easily switch between included
locking and dual chuck styles.
More accurate than ever. 0.1psi resolution and +/-1.0psi
accuracy for difficult TPMS systems.
Simple AAA battery design. Just pull the battery tab and go
for up to 560 hours of use. Two AAA batteries included.
Displays KGF, PSI or BAR measurement.
Large LCD digital read-out with new longer 10 second backlit
face.
Two position lever. 1st position deflates, 2nd position inflates.
Works on with nitrogen systems and CO2.
Measuring Range:
Units:
Resolution:
Accuracy:
Working Temperature:
Power:
Battery Lifetime:
Press once to turn on. Press again to turn on backlight.
When the unit is on, press for 3 seconds to switch units.
If display is inaccurate, unreadable or will not change, press
and hold the button for 8 seconds to restart.
ON/UNIT/LIGHT:
Includes
2 AAA batteries

Page 2
1. Inflator's working pressure is 0.2-12 bar (3-175psi), Max Inlet Pressure is 15 bar (218psi).
2. Maximum Pressure is above 17 bar, the LCD will show "----", no actual value, and the inflator may be damaged.
1. Remove tire valve cap.
2. With clip-on air chuck lever depressed, firmly press chuck onto tire valve stem and release lever, and ensure that
no air leaks.
3. Press the grip to inflate. Press the grip half-way to deflate.
4. To turn on the inflator, press the ON/UNIT/LIGHT button. If it does not work, the inflator will be turned off
automatically 90 seconds later.
5. When the inflator is on, press the ON/UNIT/LIGHT button to turn on the backlight in order to read the pressure in
dark. The backlight will diminish automatically in 10 seconds. Backlight will not be activated by turning on the
inflator, can only be activated by pressing the ON/UNIT/LIGHT button.
6. To change unit, when the inflator is on, press ON/UNIT/LIGHT button for at least 3 seconds. Then, press
ON/UNIT/LIGHT button shortly after to choose the desired unit. The unit chosen will be set as default for
following usage.
7. The inflator’s battery is 2*AAA, if voltage is low, the low battery signal on the top left of the LCD display will be
flashing continuously to remind user to change the battery.
8. The measuring range is 0.2-12 bar (3-175psi). Reading resolution is 0.01 bar (0.1psi). Maximum inlet pressure is
15 bar (218psi).
OPERATING INSTRUCTION:
USAGE NOTES:
To avoid the risk of personal injury, especially to the eyes, face or skin,
DO NOT direct the stream at any person.
IMPORTANT
QUICK CHANGE FITTING INSTRUCTION
DELUXE DIGITAL TIRE INFLATOR DT8
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Peel back rubber sleeve Pry the cover open with fingernail or
flathead screwdriver (care to hold down cover,
as cover is under spring tension)
Install 2 AAA batteries
in indicated orientation
Snap battery cover shut Reinstall rubber sleeve
BATTERY INSTALLATION INSTRUCTION
2.1. 3.
4. 5.
Rotate the disconnect
fitting anticlockwise
1. 2.
Slide chuck off of fitting Slide the new chuck into fitting
3.
Tighten the chuck onto the fitting
by rotating it clockwise
4.

Page 3
TROUBLESHOOTING GUIDE
ISSUE
Light is dim or not coming on
RECOMMENDATION
Replace unit battery. Unit uses AAA batteries. (See Product
Manual for instructions on how to change batteries)
REPLACEMENT PART
AAA batteries
Hold power button for 8 seconds to clear. Or replace unit
battery. Unit uses AAA batteries. (See Product Manual for
instructions on how to change batteries)
Inaccurate reading
(Example: Reading is off
by 3psi to 4psi)
AAA batteries
Unit doesn’t turn on AAA batteries
Unit is not deflating
1) Examine the Air Chuck (3018-17) to see if pin is broken.
(See Image 1 below)
2) If pin is broken order part # 3018-17 - Air Chuck.
3) To begin repair, unscrew broken chuck from hose and
replace with new chuck.
# 3018-17
Air leak (Valve Assembly)
1) Air leaks are usually caused by worn O-rings in the
Valve Assembly.
2) To begin repair simply remove Circlip (3018-09) and Lever
Pin (3018-13) to gain access to the Valve Assembly.
Unscrew Valve Base Assembly (3018-12) and pull out
Valve Assembly.
3) Replace O-rings on valve assembly with P4 O-ring.
Check Spring (3018-10) and ensure Spring is not broken
or damaged.
4) Replace Valve Assembly onto unit and tighten Valve Base
Assembly (3018-12). Replace Lever Pin (3018-13) and
Circlip (3018-09).
n/a
(P4 O-ring)
No handle spring action
1) No handle spring action is usually caused by broken spring.
2) Order part # 3018-10 - Spring.
3) To repair simply remove Circlip (3018-09) and Lever Pin
(3018-13) to gain access to the Valve Assembly. Unscrew
Valve Base Assembly (3018-12) and pull out Valve Assembly.
4) Replace broken Spring (3018-10).
5) Replace Valve Assembly onto unit and tighten Valve Base
Assembly (3018-12). Replace Lever Pin (3018-13) and
Circlip (3018-09).
Replace unit battery. Unit uses AAA batteries. (See Product
Manual for instructions on how to change batteries)
# 3018-10
IMAGE 1
GOOD DAMAGED GOOD DAMAGED
DELUXE DIGITAL TIRE INFLATOR DT8
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1 2 3
4
14
18
6
13
9
17
19
7
16
15
5
10
8
20
11 12
11B01
12B01
12B02
12B03
11B02
1 2 5
3
21
Page 10
PARTS BREAKDOWN
Index No. Part No. Description Qty
1
2
3
4
5
6
7
8
9
10
11
11B01
11B02
1
1
2
2
1
2
1
1
2
1
1
1
1
Front Cover
PCB Board Assembly
Ø 2.6 x 6.0 Screw
AAA Battery
High Accuracy Sensor Assy.
Ø 3.5 x 14 Screw
Main Body - Burgundy
Hex Screw Ø 3.5 x 8
Circlip Ø 3.5
Spring 0.85 x 7.0 / 8.0 x 18.5 x 7
Valve Assembly
O-Ring
O-Ring
Index No. Part No. Description Qty
12
12B01
12B02
12B03
13
14
15
16
17
18
19
1
1
1
1
1
1
1
1
1
1
1
1
1
20
21
Valve Base Assembly
O-Ring
O-Ring
O-Ring
Lever Pin
Lever
Air Inlet
Coated Stainless Hose
Air Chuck
Digital Gauge Assembly
Battery Cover
Air Valve Rebuild Kit
(includes part numbers 11, 11B01,
11B02, 12, 12B01, 12B02, and 12B03.)
6" Dual Chuck
Quick disconnect fitting assembly
3018-12
3018-12B01
3018-12B02
3018-12B03
3018-13
3018-14
3018-15
3018-16C
3018-17
DT4BG-18
3018-19
DT4-VSA
30DC
DT8-21
Parts List
Items marked with an (*) are not sold individually
DT8-01
DT8-02
3018-03
DT6-05
3018-06
DT8-07
3018-08
3018-09
3018-10
3018-11
3018-11B01
3018-11B02
DELUXE DIGITAL TIRE INFLATOR DT8
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