Mityvac MV8500 silverline elite aUtoMotive test kit - Manual (Page 22)

Page Number - Form 8433
B) Bleeder fittings on the combination valve,
if equipped .
C) Wheel cylinders and calipers in succession
beginning with the wheel closest to the master
cylinder, and working to the farthest one .
NOTE: Follow manufacturer’s recommended bleeding
sequence (if known) . The procedure given in this
article specifies to begin bleeding the wheel closest
to master cylinder . Regardless of sequence used,
always ensure all air is purged from system .
3) Slip 1
1 ⁄ ” of tubing between the pump and the lid
of reservoir jar at port marked “TO PUMP”
(FIGURE 18) .
4) Attach 3
1
⁄ ” plastic hose to the bottom of the cap .
5) Affix at least a 1” piece of tubing to the other
reservoir jar port . Be certain that the cover of the
reservoir jar is secure, but don’t over tighten .
6) Select the appropriate adapter(s) . The L-shaped
universal adapters should fit snugly over the brake
bleeding fitting in order to seal properly . The
tapered adapters fit inside the thru-hole of fitting
and will generally seal well when inserted tightly
with a pressing and twisting motion . Attach adapter
to reservoir hose .
7) Place wrench on brake bleeding fitting .
Attach adapter and pump assembly, and pump
10 to 15 times .
NOTE: If bubbles coming out of the fitting are very
small and even in size, the air is probably coming
from within the system . It is not necessary to
eliminate these bubbles as they do not affect brake
operation . If desired, these bubbles can generally be
eliminated by placing grease or Teflon tape around
the threads, to act as a seal .
8) Open fitting slightly, only enough to cause the
fluid to enter jar, usually
1
⁄
4
to
1
⁄ turn .
9) After evacuating about ” of fluid into the jar,
close the fitting and refill the master cylinder .
Repeat all previous steps on all remaining wheels .
If fluid is not drawn into the jar after opening the
fitting, make certain the lid of the jar is tight . You
will not be able to produce the necessary vacuum
in the jar if the lid does not fit securely . Occasionally
some dirt will get into the brake line, in which case
the pump may not be totally effective . If this
happens, have someone touch the brake pedal
once lightly, with the bleeding valve open, then
proceed to use the pump .
braKe bLeeDinG
To Pump
FIGURE 18: BRAKE BLEEDING KIT