Pittsburgh Automotive 92474 User manual

Brake Bleeder &
Vacuum Pump Kit
92474 Fuel Injection Test Kit
INSTRUCTIONS AND
PRECAUTIONS
Visit our website at:
http://www.harborfreight.com
Read this material before
using this product.
Failure to do so can result
in serious injury.
SAVE THIS MANUAL.
When unpacking, make sure
that the product is intact and
undamaged.
If any parts are missing or broken,
please call 1‑800‑444‑3353
as soon as possible.
Copyright©2011 by Harbor Freight Tools®.
All rights reserved. No portion of this document
or any artwork contained herein may be
reproduced in any shape or form without the
express written consent of Harbor Freight
Tools. Diagrams within this document may
not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly
from the product described herein. Tools required
for assembly and service may not be included.
For technical questions or replacement
parts, please call 1‑800‑444‑3353.

Page 2 For technical questions, please call 1‑800‑444‑3353. SKU 92474
Specications
Pressure Gauge 0~100 PSI, 0.7 Bar,
1/4” x 18 NPT Swivel
Important Safety Information
WARNING!
READ AND UNDERSTAND ALL
INSTRUCTIONS
Failure to follow instructions listed
below may result in serious injury.
SAVE THESE INSTRUCTIONS
General Safety Rules
1. Keep bystanders, children, and
visitors away while operating the
Vacuum Pump. Distractions can
cause you to lose control. Protect
others in the work area from injury.
2. Stay alert. Watch what you are
doing, and use common sense
when operating the Vacuum Pump.
Do not use the tool while tired
or under the inuence of drugs,
alcohol, or medication. A moment
of inattention while operating the tool
may result in serious personal injury.
3. Dress properly. Do not wear loose
clothing or jewelry. Contain long
hair. Keep your hair, clothing, and
jewelry away from moving parts.
Loose clothes, jewelry, or long hair
can be caught in moving parts.
4. Do not overreach. Keep proper
footing and balance at all
times. Proper footing and balance
enables better control of the power
tool in unexpected situations.
5. Use safety equipment. Wear
ANSI‑approved safety glasses
underneath a full face safety
shield. Nonskid safety shoes, hard
hat, or hearing protection must be
used for appropriate conditions.
6. Do not force the tool. Use the
correct tool for your application. The
correct tool will do the job better and
safer at the rate for which it is designed.
7. Store idle tools out of reach of
children and other untrained
persons. Tools are dangerous in
the hands of untrained users.
8. Maintain tools with care. Keep
tools dry and clean. Properly
maintained tools are less likely to
bind and are easier to control. Do not
use a damaged tool. Tag damaged
tools “Do not use” until repaired.
9. Check for misalignment or binding
of moving parts, breakage of
parts, and any other condition that
may affect the tool’s operation. If
damaged, have the tool serviced
before using. Many accidents are
caused by poorly maintained tools.
10. Use only accessories that are
recommended by the manufacturer
for your model. Accessories that may
be suitable for one tool may become
hazardous when used on another tool.
11. Tool service must be performed
only by qualied repair personnel.
Service or maintenance performed
by unqualied personnel could
result in a risk of injury.
12. When servicing a tool, use only
identical replacement parts. Follow
instructions in the section of this
manual. Use of unauthorized parts
or failure to follow maintenance
instructions may create a risk of injury.

Page 3For technical questions, please call 1‑800‑444‑3353.SKU 92474
Specic Safety Instructions
1. Maintain a safe working
environment. Keep the work area
well lit. Make sure there is adequate
surrounding workspace. Keep the work
area free of obstructions, grease, oil,
trash, and other debris. Do not use
this product in a damp or wet location.
2. Maintain labels and nameplates
on this product. These carry
important information. If unreadable
or missing, contact Harbor Freight
Tools for a replacement.
3. Keep the handle dry, clean, and free
from brake uid, oil, and grease.
4. Before use read and understand
all warnings, safety precautions,
and instructions as outlined in the
vehicle manufacturer’s service
manual. Every vehicle has specic
measurement values for vacuum
related readings. It is beyond the
scope of this manual to properly
describe the correct procedure
and test data for each vehicle.
5. Carbon monoxide is produced
while a vehicle’s engine is
operating and is deadly in a closed
environment. Early signs of carbon
monoxide poisoning resemble the
u, with headaches, dizziness, or
nausea. If you have these signs,
the work area may not be vented
properly. Get fresh air immediately.
6. Prior to using the Vacuum
Pump, make sure to place
the vehicle’s transmission
in “PARK” (if automatic) or
“NEUTRAL” (if manual). Then,
block the tires with chocks.
7. Be alert for hot engine parts
to avoid accidental burns.
8. Avoid accidental re and/or
explosion. Do not smoke near
engine fuel and battery components.
9. Use the Brake Bleeder only with
brake uid. Do not attempt to
use the tool to siphon any other
liquids. Damage to the internal
chamber and seal, or future brake
uid contamination may result.
10. Follow guidelines for proper
brake uid disposal. Used brake
uid should be removed from the
vehicle and properly recycled. Many
states require recycling. Contact
your local solid/liquid waste authority
for information on recycling. Do
not reuse old brake uid.
11. Brake uid may damage paint.
Clean up spilled uid quickly.
12. People with pacemakers should
consult their physician(s) before
using this product on a running
engine. Electromagnetic elds in
close proximity to a heart pacemaker
could cause interference or failure of
the pacemaker. In addition, people
with pacemakers should adhere to
the following: Caution is necessary
when near the coil, spark plug cables,
or distributor of a running engine.
13. The brass components of this product
contain lead, a chemical known
to the State of California to cause
cancer and birth defects (or other
reproductive harm). (California Health
& Safety Code § 25249, et seq.)
14. The warnings, precautions, and
instructions discussed in this manual
cannot cover all possible conditions
and situations that may occur. The
operator must understand that common
sense and caution are factors which
cannot be built into this product, but
must be supplied by the operator.

Page 4 For technical questions, please call 1‑800‑444‑3353. SKU 92474
Setup Instructions
1. Open the Cup (3).
2. Seat the O‑ring (11) completely into
the groove in the top of the Cup (3).
3. Remove the shipping spacer that
prevents the Vacuum Pump (1) handle
from moving through its full range.
4. Cover the inlet of the Vacuum Pump
with something such as the plastic bag.
To prevent injury, DO NOT USE
YOUR SKIN TO PLUG THE INLET.
Operate the pump several times to
create the vacuum. The vacuum
should not decrease quickly. If air
is entering through the vacuum
release valve, tighten it. After the
pump properly holds a vacuum,
press in the Pump’s vacuum release
valve to release the vacuum.
Set the plastic bag aside.
5. The vacuum pump should
now be ready for use.
Operating Instructions
Read the ENTIRE IMPORTANT
SAFETY INFORMATION
section at the beginning of
this document including all
text under subheadings therein
before set up or use of
this product.
Vacuum System Testing
1. Position the vehicle in a at, level
outdoor area. Set the parking
brake and chock the tires.
2. Attach a 23” Hose (4) to the
Vacuum Pump (1).
3. Attach the other end of the Hose
to the vacuum system. Keep
clear of parts that will move or get
hot while an assistant starts the
engine. Wait until the vacuum
reading stabilizes and compare it to
the manufacturer’s specication.
4. After obtaining a measurement,
shut off the engine.
5. A low or unstable vacuum reading
may mean a vacuum leak,
vacuum line blockage, cylinder
sealing problems, incorrect valve/
ignition timing, or other issues.
6. NOTE: Vehicle vacuum systems will
differ. Consult the vehicle’s service
manual for proper testing procedures.
7. After testing is complete, disconnect the
Vacuum Pump and Hose, remove any
plugs or clamps and secure all vacuum
lines. CAUTION! Before driving the
vehicle, carefully check for leaks
and test for proper operation.
Brake Bleeding
1. Attach a 3” Hose (5) to the
bottom of the Suction Lid (2a).
2. Attach a 23” Hose (4) to the top of the
Suction Lid (2a) that does not have the
3” Hose attached as shown in Figure
A. Then, attach the other end of that
23” Hose to the Vacuum Pump (1).
3. Make sure the O‑ring (11) is
completely seated into the groove
on the top of the Cup to provide
a good seal. Firmly attach the
Suction Lid (2a) to the Cup (3).
4. Remove the cap from the vehicle’s
master cylinder, and make sure
the master cylinder is full of brake
uid. If not full, ll the master
cylinder to capacity with clean,
new brake uid. (Use only the

Page 5For technical questions, please call 1‑800‑444‑3353.SKU 92474
kind of brake uid recommended
by the vehicle manufacturer.)
5. NOTE: Determine the proper
brake bleeding sequence from your
vehicle service manual (i.e., right
rear wheel, left rear wheel, right
front wheel, left front wheel).
6. Connect the 23” Hose (4) to the
remaining port on the Suction Lid (2a).
7. Connect the other end of the 23” Hose
and then connect the other end to
the Brake Bleed Screw Adapter (9).
8. Squeeze the Handle of the Vacuum
Pump (1) 10 to 15 times to create
a vacuum in the Cup (3).
NOTE: The Gauge on the Vacuum Pump
should read at approximately 10
inHg. Do not exceed 20 inHg. A
greater vacuum could damage
the vehicle’s brake system.
9. Once the Vacuum Pump (1) is ready,
check for leaks at the Cup (3) and
at all Hose (4, 5) connections. If
there is a leak, release the vacuum
with the Vacuum Release Valve.
10. Correct the leak, and once again
create a vacuum in the Vacuum
Pump to approximately 10 inHg.
11. Open the vehicle’s brake caliper
bleed screw, and allow brake uid to
ow into the Cup (3). Then, retighten
the bleed screw after bleeding.
12. Release the vacuum in the Vacuum
Pump (1) with the Vacuum Release
Valve. Then, disconnect the Brake
Bleed Screw Adapter (9) from the
vehicle’s brake caliper bleed screw.
13. NOTE: When necessary, release
the vacuum in the tool and empty its
Cup (3) of old brake uid. To assist in
transport, this set includes a Transport
Lid (2b) without hose connections.
After the brake uid is disposed of
properly, resume bleeding the brakes.
14. Remove the cap from the vehicle’s
master cylinder, and rell the master
cylinder back to its normal capacity
FIGURE A
VACUUM
PUMP (1)
GAUGE
VACUUM
RELEASE
VALVE
23” HOSE (4)
BRAKE BLEED
SCREW ADAPTER
(9A, 9B, OR 9C)
TAPERED
HOSE
ADAPTER
(6)
23”
HOSE (4)
TO BRAKE CALIPER
BLEED SCREW
3”HOSE (5)
SUCTION
LID (2A)
O‑RING (11)
CUP (3)
PUMP
SCREW