Harbor Freight Tools 66786 User Manual

20 GALLON PORTABLE OIL

LIFT DRAIN

66786

SET UP AND OPERATING INSTRUCTIONS

Distributed exclusively by Harbor Freight Tools®.

3491 Mission Oaks Blvd., Camarillo, CA 93011

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.

Copyright© 2009 by Harbor Freight Tools®. All rights reserved. No portion of this manual 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 manual 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.

SAVE THIS MANUAL

Keep this manual for the safety warn­ings and precautions, assembly, operat­ing, inspection, maintenance and cleaning
procedures. Write the product’s serial
number in the back of the manual near the
assembly diagram (or month and year of
purchase if product has no number). Keep
this manual and the receipt in a safe and
dry place for future reference.

NOTICE is used to

address practices

not related to personal injury.

CAUTION, without

the safety alert
symbol, is used to address
practices not related to
personal injury.

IMPORTANT SAFETY

Safety Alert Symbol and Signal

Words

In this manual, on the labeling,
and all other information provid­ed with this product:

This is the safety alert

symbol. It is used to alert
you to potential personal
injury hazards. Obey all
safety messages that
follow this symbol to avoid
possible injury or death.

DANGER indicates

a hazardous
situation which, if not
avoided, will result in death or
serious injury.

WARNING

indicates a
hazardous situation which, if
not avoided, could result in
death or serious injury.

CAUTION, used

with the safety
alert symbol, indicates a
hazardous situation which, if
not avoided, could result in
minor or moderate injury.

INSTRUCTIONS

INSTRUCTIONS PERTAINING

TO A RISK OF FIRE,

ELECTRIC SHOCK, OR

INJURY TO PERSONS

WARNING – When using tools, basic pre-

cautions should always be followed,
including the following:

General

To reduce the risks of electric a.

shock, re, and injury to persons,

read all the instructions before us­ing the tool.

Work area

Keep the work area clean and well a.
lighted. Cluttered benches and dark

areas increase the risks of electric

shock, re, and injury to persons.

Do not operate the tool in explo-b.
sive atmospheres, such as in the

presence of ammable liquids,

gases, or dust. The tool is able to
create sparks resulting in the ignition
of the dust or fumes.

Keep bystanders, children, and c.
visitors away while operating the

SKU 66786 For technical questions, please call 1-800-444-3353. Page 2

tool. Distractions are able to result in
the loss of control of the tool.

Personal safety

Stay alert. Watch what you are do-a.
ing and use common sense when
operating the tool. 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 increases the risk

of injury to persons.

Dress properly. Do not wear loose b.
clothing or jewelry. Contain long
hair. Keep hair, clothing, and
gloves away from moving parts.

Loose clothes, jewelry, or long hair
increases the risk of injury to persons

as a result of being caught in moving
parts.

Do not overreach. Keep proper c.
footing and balance at all times.

Proper footing and balance enables
better control of the tool in unexpect­ed situations.

Tool use and care

Do not force the tool.a. Use the

correct tool for the application. The

correct tool will do the job better and

safer at the rate for which the tool is
designed.

Disconnect the tool from the air b.
source before making any adjust­ments, changing accessories, or
storing the tool. Such preventive

safety measures reduce the risk of
starting the tool unintentionally. Turn
off and detach the air supply, safely
discharge any residual air pressure,
and release the throttle and/or turn
the switch to its off position before
leaving the work area.

Store the tool when it is idle out of c.
reach of children and other un­trained persons. A tool is dangerous

in the hands of untrained users.

Maintain the tool with care. d. A prop-
erly maintained tool will work more
effectively.

d. Use safety equipment. A

dust mask, non-skid safety
shoes and a hard hat must

be used for the applicable
conditions. Wear heavy-duty work
gloves during use.

e. Always wear eye protec-

tion. Wear ANSI-ap-

proved safety goggles.

f. Always wear hearing

protection when using

the tool. Prolonged expo-

sure to high intensity noise
is able to cause hearing loss.

SKU 66786 For technical questions, please call 1-800-444-3353. Page 3

Check for misalignment or bind-e.
ing of moving parts, breakage of
parts, and any other condition that
affects the tool’s operation. If dam-

aged, have the tool serviced before
using. Many accidents are caused
by poorly maintained tools. There is a
risk of bursting if the tool is damaged.

Use only accessories that are f.

identied by the manufacturer for
the specic tool model. Use of an

accessory not intended for use with

the specic tool model, increases the
risk of injury to persons.

Service

SYMBOLS AND

Tool service must be performed a.

only by qualied repair personnel.

When servicing a tool, use only b.
identical replacement parts. Use
only authorized parts.

Air source

a. Never connect to an air

source that is capable of

exceeding 200 PSI. Over

pressurizing the tool may
cause bursting, abnormal operation,

breakage of the tool or serious injury

to persons. Use only clean, dry,
regulated compressed air at the rated
pressure or within the rated pressure
range as marked on the tool. Always
verify prior to using the tool that the

air source has been adjusted to the

rated air pressure or within the rated
air-pressure range.

SPECIFIC SAFETY

INSTRUCTIONS

Symbol Denitions

Symbol Property or statement

PSI

CFM

SCFM

NPT

Pounds per square inch of pressure

Cubic Feet per Minute ow

Cubic Feet per Minute ow at

standard conditions

National pipe thread, tapered

WARNING marking concerning Risk

of Eye Injury. Wear ANSI-approved

eye protection.

WARNING marking concerning Risk

of Respiratory Injury. Wear NIOSH-

approved dust mask/respirator.

WARNING marking concerning Risk
of Explosion.

WARNING! Do not exceed 10 PSI b.
working air pressure during use.

Never use oxygen, carbon dioxide, c.
combustible gases or any bottled
gas as an air source for the tool.

Such gases are capable of explosion

and serious injury to persons.

SAVE THESE

INSTRUCTIONS.

Specic Safety Instructions

The warnings and precautions dis-1.
cussed in this manual cannot cover
all possible conditions and situations
that may occur. It must be under­stood by the operator that common
sense and caution are factors which
cannot be built into this product, but
must be supplied by the operator.

Do not exceed the product’s working 2.
pressure of 10 PSI.

Only use on a at surface capable of 3.
supporting the Portable Oil Lift and its
maximum load of 20 gallons.

Always secure the Wheels and Cast-4.
ers in place while operating Oil Lift.

SKU 66786 For technical questions, please call 1-800-444-3353. Page 4

Know and obey city and state laws 5.
for proper disposal of oil. Dispose of
oil properly in accordance with all lo­cal laws and regulations.

Attach all accessories properly to the 14.
tool before connecting the air sup­ply. A loose accessory may detach or
break during operation.

WARNING! 6. The Oil Lift is to be used
only for transporting oil. Do not use
to transport any other liquid.

Do not leave Oil Lift unattended while 7.
operating or while evacuating oil.

Do not use this equipment near open 8.

ame or heat sources.

Always raise Bowl (1) and close Ball 9.
Valve (6) before evacuating oil. Nev­er attempt to pressurize the Tank with
the Ball Valve open.

If the Safety Valve ever relieves any 10.
air pressure from the Tank, remove
the unit from service immediately and

contact a qualied service technician.

If used oil does not evacuate the 11.
Tank (23) upon pressurization, check
to make sure the Ball Valve (6) is fully
closed with the Handle (10) in the
horizontal position. If this does not
correct the problem, remove the unit
from service immediately and con-

tact a qualied service technician for

repair.

Obey the manual for the air compres-15.
sor used to power this tool.

Install an in-line shutoff valve to allow 16.
immediate control over the air supply
in an emergency, even if a hose is
ruptured.

Do not lay the tool down until it has 17.
come to a complete stop. Moving
parts can grab the surface and pull
the tool out of your control.

Do not smoke during use of this prod-18.
uct.

Grip tool as lightly as possible (while 19.
still keeping safe control of it). Let
the tool do the work.

If any abnormal vibration occurs, stop 20.
use immediately.

SAVE THESE

INSTRUCTIONS.

WARNING: The brass components 12.
of this product contain lead, a chemi­cal known to the State of California
to cause birth defects (or other repro­ductive harm). (California Health &
Safety code § 25249.5, et seq.)

Only use with accessories rated to 13.
handle the forces exerted by this tool
during operation. Other accessories
not designed for the forces gener­ated may break and forcefully launch
pieces.

SKU 66786 For technical questions, please call 1-800-444-3353. Page 5

FUNCTIONAL DESCRIPTION

Assembly

Specications

Capacity 20 Gallons

Operating Air Pressure 10 PSI

Air Inlet 1/4” -18 NPT

INITIAL TOOL SET UP/

ASSEMBLY

Read the ENTIRE IMPORTANT

SAFETY INFORMATION
section at the beginning of this
manual including all text under
subheadings therein before set
up or use of this product.

Note: For additional information regarding

the parts listed in the following pages,
refer to the Assembly Diagram near
the end of this manual.

Unpacking

When unpacking, make sure that the

item is intact and undamaged. If any parts
are missing or broken, please call Harbor
Freight Tools at 1-800-444-3353 as soon
as possible.

This air tool may be shipped with a •
protective plug covering the air inlet.
Remove this plug before set up.

Be sure to assemble Oil Lift Drain 1.

on at, level surface able to support

weight of tool.

To begin assembly, slide one Fixed 2.
Wheel (18) onto each end of the axle
of the Tank (23). Lock Wheels into
place using Washers (17) and Retain­ing Rings (16). See Assembly Dia-
gram on page 12.

If the Casters are not already at-3.
tached to the Tank, fasten one Swivel
Caster (22) to each plate located
on the base of the Oil Lift. Slide on
Spring Washer (20), Washer (21),
and then thread Locking Nut (19)
onto Caster stem to secure Swivel
Casters in place. See Assembly
Diagram on page 12.

Insert the Handle (10) into the slot on 4.
the upper side of the Tank (23). Fas­ten in place using the Bolts (11). See
Assembly Diagram on page 12.

Insert the Bushing (4) into the Nut (5)5.
and thread the Nut into the Ball Valve
until secure.

When tightening, make sure the Lock 6.
Knob (3) is parallel with the handle of
the Gate Valve (6).

Thread the Bowl (1) into the Drain 7.
Tube (2) until fastened securely.

Insert the Drain Tube, with the Bowl 8.
fastened to the other end, into the
Bushing. Select the required height
and lock Drain Tube in place using
the Locking Knob (3). See Assem-
bly Diagram on page 12.

SKU 66786 For technical questions, please call 1-800-444-3353. Page 6

Air Supply

TO PREVENT

EXPLOSION:
Use only clean, dry, regulated,
compressed air to power this
tool. Do not use oxygen,
carbon dioxide, combustible
gases, or any other bottled
gas as a power source for this
tool.

Male

Connector

Tool

Male

Connector

Attach an air hose to the compres-2.
sor’s air outlet. Connect the air hose
to the air inlet of the tool. Other com­ponents, such as a connector and
quick coupler, will make operation

more efcient, but are not required.

WARNING! TO PREVENT SERIOUS

INJURY FROM ACCIDENTAL
OPERATION: Do not install a
female quick coupler on the tool.

Such a coupler contains an air valve
that will allow the air tool to retain
pressure and operate accidentally
after the air supply is disconnected.

Valve FilterOiler

Quick

Coupler

Quick

Coupler

Regulator with

Pressure Gauge

Air Hose

on Reel

Air

Compressor

Recommended Air Line Components

Incorporate a lter, regulator with 1.
pressure gauge, in-line shutoff valve,
and quick coupler for best service,
as shown in the diagram above.

An in-line shutoff ball valve is an
important safety device because it
controls the air supply even if the
air hose is ruptured. The shutoff
valve should be a ball valve be­cause it can be closed quickly.

Note: If an automatic oiler system is not

used, add a few drops of Pneumatic
Tool Oil to the airline connection be­fore operation. Add a few more drops
after each hour of continual use.

Note: Air ow, and therefore tool perfor-

mance, can be hindered by under­sized air supply components.

The air hose must be long enough 3.
to reach the work area with enough
extra length to allow free movement
while working.

Close the in-line safety valve be-4.
tween the compressor and the tool.

Turn on the air compressor according 5.
to the manufacturer’s directions and
allow it to build up pressure until it
cycles off.

Adjust the air compressor’s output 6.
regulator so that the air output is
enough to properly power the tool,
but the output will not exceed the
tool’s maximum air pressure at any

time. Adjust the pressure gradually,

while checking the air output gauge
to set the right pressure range.

Inspect the air connections for leaks. 7.
Repair any leaks found.

If the tool will not be used at this 8.
time, turn off and detach the air sup­ply, safely discharge any residual air

SKU 66786 For technical questions, please call 1-800-444-3353. Page 7

pressure, and release the throttle
and/or turn the switch to its off posi­tion to prevent accidental operation.

Note: Residual air pressure should not be

present after the tool is disconnected
from the air supply. However, it is a
good safety measure to attempt to
discharge the tool in a safe fashion
after disconnecting to ensure that the
tool is disconnected and unpowered.

TO PREVENT SERIOUS
INJURY: Do not adjust or
tamper with any control or
component in a way not

specically explained within

this manual. Improper
adjustment can result in
tool failure or other serious
hazards.

Work Piece and Work Area Set Up

OPERATING INSTRUCTIONS

Read the ENTIRE IMPORTANT

SAFETY INFORMATION
section at the beginning of this
manual including all text under
subheadings therein before set
up or use of this product.

Inspect tool before use, looking
for damaged, loose, and
missing parts. If any problems
are found, do not use tool until
repaired.

Tool Set Up

TO PREVENT

SERIOUS INJURY
FROM ACCIDENTAL
OPERATION: Close the Ball
Valve, detach the air supply,
safely discharge any residual
air pressure in the tool before
performing any inspection,
maintenance, or cleaning
procedures.

Designate a work area that is clean 1.
and well-lit. The work area must not
allow access by children or pets to

prevent injury and distraction.

Route the air hose along a safe route 2.
to reach the work area without creat­ing a tripping hazard or exposing the
air hose to possible damage. The air
hose must be long enough to reach
the work area with enough extra
length to allow free movement while
working.

There must not be hazardous ob-3.

jects (such as utility lines or foreign
objects) nearby that will present a

hazard while working.

General Operating Instructions

Open the Ball Valve (6) by turning 1.
Valve’s handle to a vertical position.

Unscrew Lock Knob (3) and readjust

Bowl (1) height.

Once the Bowl (1) has been set at 2.
the required height and locked into
place, remove oil pain plug to drain
the oil.

WARNING! 3. Do not ll the Tank be-
yond its 20-gallon capacity. The
discharge hose is clear, so the oil in
the tube will indicate the reservoir

SKU 66786 For technical questions, please call 1-800-444-3353. Page 8

ll level. When oil level reaches the

Hoop (14), drain the oil.

along at, level surfaces able to with­stand the weight of the Oil Lift.

Back off Lock Knob (3) and raise 4.
Drain Tube to above Gate Valve “ball”
and tighten Lock Knob. Rotate Ball
Valve handle to horizontal position.

Place Nozzle (12) securely in a used 5.
oil collection receptacle. WARNING!
Be sure to follow all local regulations
regarding proper used oil collection.

Connect the compressor’s air supply 6.
hose to the Air Inlet (9). Turn on the
air compressor, making sure it is set
between 7-10 PSI.

WARNING! Do not leave Oil Lift 7.
unattended while it is in the evacu­ating oil process.

Please note: 8. The Oil Lift has a

Safety Valve (8) that can be pulled to
rapidly release pressure in the Tank
in case of an emergency.

Close Regulator (7) by pulling out the 9.
knob and rotating counterclockwise.
Pull Regulator’s cap out and slowly
turn it in a clockwise direction while
observing the Pressure Gauge. Do

not exceed 10 PSI.

Once oil is no longer being dis-10.
charged from the Nozzle, turn off air
compressor. Disconnect compressor
air supply hose from the Air Inlet.

Before transporting the Oil Lift, open 11.
the Lock Knob (3) and lower all the
way. Then lock Drain Tube in place
by turning the Lock Knob.

Use the Handle (10) when moving 12.
the Oil Lift from one location to an­other. Always grasp the Handle with
two hands and only transport Oil Lift

If the tool requires more force to 13.
accomplish the task, verify that the

tool receives sufcient, unobstructed
airow (CFM) and increase the

pressure (PSI) output of the regulator
up to the maximum air pressure
rating of this tool.

CAUTION! TO PREVENT TOOL
AND ACCESSORY FAILURE,
RESULTING IN INJURY:
Do not exceed the tool’s maximum
air pressure rating of 10 PSI.

Please Note: 14. Oil discharge rate will

be slightly affected by the outside
temperature.

USER-MAINTENANCE

INSTRUCTIONS

Procedures not specically

explained in this manual
must be performed only by a

qualied technician.

TO PREVENT

SERIOUS INJURY
FROM ACCIDENTAL
OPERATION: Turn off tool,
detach air supply, safely
discharge any residual air
pressure in tool before
performing any inspection,
maintenance, or cleaning.

TO PREVENT SERIOUS
INJURY FROM TOOL
FAILURE: Do not use
damaged equipment. If
abnormal noise, vibration, or
leaking air or oil occurs, have
the problem corrected before
further use.

SKU 66786 For technical questions, please call 1-800-444-3353. Page 9

TO PREVENT EXPLOSION:
Lubricate tool only with

specied lubricants.

Lubricate air inlet using only
pneumatic tool oil. Lubricate
internal mechanism using
only white lithium grease.
Other lubricants may damage
mechanism and may be

highly ammable, causing an

explosion.

Cleaning, Maintenance, and

Lubrication

Note: These procedures are in addition to

the regular checks and maintenance
explained as part of the regular op­eration of the air-operated tool.

Once a year after discharging con-1.
tents of the Tank, remove the Drain
Plug (24) to drain accumulated
sludge. To reattach the Plug, wrap
three turns of thread sealing tape
(not included) on the Plug thread
and secure in place. Do not over­tighten.

Keep the outside of the Tank free of 2.
oil or grease. Use only a mild soap
and damp cloth when cleaning. Do

not use ammable or combustible

solvents.

Before and during each use, inspect 3.
the Hose (13) for damage. Do not
allowed the used oil to surpass the
Tank’s 20-gallon capacity.

After use, store in a dry, secure area 4.
out of reach of children.

Troubleshooting

Problem Possible Causes Likely Solutions

Decreased output. Not enough air pressure and/1.

Housing heats
during use.

Severe air
leakage.
(Slight air leakage
is normal,
especially on older
tools.)

or air ow.

Blockage of hose.2.

Accumulated sludge.3.

Incorrect lubrication or not 1.
enough lubrication.

Worn parts.2.

Cross-threaded housing 1.
components.

Loose housing. 2.

Damaged valve or housing.3.

Dirty, worn or damaged valve. 4.

Check for loose connections and make sure 1.

that air supply is providing enough air ow

(CFM) at required pressure (PSI) to the
tool’s air inlet. Do not exceed maximum air

pressure.

Gently blow air from Nozzle into Tube.2.

After draining the oil, remove Plug and 3.
evacuated sludge.
Lubricate using air tool oil and grease 1.
according to directions.

Have qualied technician inspect internal 2.
mechanism and replace parts as needed.
Check for incorrect alignment and uneven 1.
gaps. If cross-threaded, disassemble and
replace damaged parts before use.

Tighten housing assembly. If housing cannot 2.
tighten properly, internal parts may be
misaligned.

Replace damaged components.3.

Clean or replace valve assembly.4.

Follow all safety precautions whenever diagnosing or servicing the

tool. Disconnect air supply before service.

SKU 66786 For technical questions, please call 1-800-444-3353. Page 10

PARTS LIST

Part Description Q’ty

1 Bowl 1
2 Drain Tube 1
3 Lock Knob 1
4 Bushing 1
5 Nut 1
6 Ball Valve 1
7 Regulator (With Gauge) 1
8 Safety Valve 1

9 Air Inlet Connector 1
10 Handle 1
11 Bolt 1
12 Nozzle 1

PLEASE READ THE FOLLOWING CAREFULLY

Part Description Q’ty

13 Hose 1
14 Hoop 1
15 Locking Nut 1
16 Retaining Ring 2
17 Washer 2
18 6” Fixed Wheel 2
19 Locking Nut 2
20 Spring Washer 2
21 Washer 2
22 3” Swivel Caster 2
23 Tank 1
24 Drain Plug 1

THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY
DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT
HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS
QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/
OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD
BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE
BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE
ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER
INSTALLATION OF REPLACEMENT PARTS THERETO.

Record Product’s Serial Number Here:

Note: If product has no serial number, record month and year of purchase instead.

Note: Some parts are listed and shown for illustration purposes only, and are not avail-

able individually as replacement parts.

SKU 66786 For technical questions, please call 1-800-444-3353. Page 11

ASSEMBLY DIAGRAM

24

SKU 66786 For technical questions, please call 1-800-444-3353. Page 12

LIMITED 90 DAY WARRANTY

Harbor Freight Tools Co. makes every effort to assure that its products meet high
quality and durability standards, and warrants to the original purchaser that this prod­uct is free from defects in materials and workmanship for the period of 90 days from
the date of purchase. This warranty does not apply to damage due directly or indirectly,
to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities,
criminal activity, improper installation, normal wear and tear, or to lack of maintenance.

We shall in no event be liable for death, injuries to persons or property, or for incidental,

contingent, special or consequential damages arising from the use of our product. Some
states do not allow the exclusion or limitation of incidental or consequential damages, so
the above limitation of exclusion may not apply to you. THIS WARRANTY IS EXPRESS­LY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE
WARRANTIES OF MERCHANTABILITY AND FITNESS.

To take advantage of this warranty, the product or part must be returned to us with
transportation charges prepaid. Proof of purchase date and an explanation of the com­plaint must accompany the merchandise. If our inspection veries the defect, we will ei­ther repair or replace the product at our election or we may elect to refund the purchase
price if we cannot readily and quickly provide you with a replacement. We will return re­paired products at our expense, but if we determine there is no defect, or that the defect
resulted from causes not within the scope of our warranty, then you must bear the cost
of returning the product.

This warranty gives you specic legal rights and you may also have other rights

which vary from state to state.

3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • [phone]

SKU 66786 For technical questions, please call 1-800-444-3353. Page 13