Troubleshooting Guide - Matco Tools DT4B Manual Del Usuario

TROUBLESHOOTING GUIDE

ISSUE
Light is dim or not coming on
Inaccurate Reading
(Example: Reading is off
by 3psi to 4psi)
Unit doesn't turn on
Unit is not deflating
Air Leak (Valve Assembly)
No Handle Spring Action
GOOD DAMAGED
3.5" DIGITAL TIRE INFLATOR
WITH HOSE
Replace unit battery. Unit uses AAA battery. (See Product
Manual for instructions on how to change battery)
Hold power button for 8 seconds to clear. Or replace unit
battery. Unit uses AAA battery. (See Product Manual for
instructions on how to change battery)
Replace unit battery. Unit uses AAA battery. (See Product
Manual for instructions on how to change battery)
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.
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).
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).
GOOD DAMAGED
IMAGE 1
RECOMMENDATION
Page 3
DT4B
REPLACEMENT PART
AAA batteries
AAA batteries
AAA batteries
# 3018-17
n/a
(P4 O-ring)
# 3018-10
1605093-14