Westward 5ML68A Instructions for use

Westward Hydraulic Quick Lifting
Jacks
Operating Instructions & Parts Manual 5ML68A, 5ML69A and 5ML70A
Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself
and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage! Retain instructions
for future reference.
®
Description
Westward hydraulic Quick Lifting jacks are used for lifting part of a total vehicle (i.e.,
one wheel). Jacks are equipped with a built-in by-pass device to prevent damage
to jack from overpumping. An internal safety valve prevents damage to jack from
overloading. Applications include automotive, truck, farm, industrial and construction.
These jacks are designed to meet applicable ASME/ANSI Standards.
Specifications
Min. Max.
Model Capacity Length Height Height
5ML68A 4 Ton 48 13/16" 5" 24"
5ML69A 5 Ton 52 3/4" 6 1/2" 22 1/4"
5ML70A 10 Ton 51 1/2" 6 7/8" 27"
General Safety Information
Study, understand,
and follow all
instructions before operating this device.
Lifting device only. Intended use is for
lifting part of a total vehicle, only one
wheel or axle at a time. Immediately after
lifting, support vehicle with appropriate
means. Do not exceed rated capacity. Use
only on hard, level surfaces capable of
sustaining rated capacity loads. Lift only
on those areas of the vehicle as specified
by the vehicle manufacturer. Ensure that
the lift point is properly centered on the
jack saddle. Always wear safety glasses
when using this equipment. Inspect
jack before each use. Do not use if bent,
broken, leaking, or damaged components
are noted. No alteration of this product
is allowed. Do not use this device for
any purpose other than that for which it
was intended. Failure to heed any one or
combination of these warnings may result
in severe personal injury and/or property
damage.
Assembly
Use figure 1 as reference.
1. Assemble the handle to handle socket
by inserting the handle piece into
the socket; align the handle with jack
chassis, then tighten the hexagon nut
securely.
2. Try to operate the release mechanism
by turning the release knob located
on top of the handle clockwise and
counterclockwise to see if release shaft
fits together well.
3. Occasionally, hydraulic jacks become
air bound and will not function
properly. To correct this condition,
remove oil filler/vent plug. This will
allow any pressurized air to escape.
Check for proper oil level (see Adding
Oil, page 2), adjust as needed.
DO NOT OVERFILL! Reinstall oil filler/
vent plug.
4. Squirt a small amount of hydraulic jack
oil on pistons and lightly lubricate all
moving parts of jack.
Operation
Off-centered loads
and loads lifted while
jack is not level may damage the jack or
cause personal injury.
LIFTING
1. Prevent inadvertent vehicle movement
by fully engaging emergency brake,
putting transmission in park. Use
wheel chocks in pairs on the wheel
diagonally opposed to the wheel or
axle lifted.
2. Close release valve by turning
the release knob on top of handle
clockwise until it is firmly closed.
3. Position jack under load and align
to the lift point suggested by vehicle
manufacturer.
4. Operate jack by pumping the handle,
foot pedal until saddle contacts load
point. Ensure load is centered on
saddle. Then operate jack until load
reaches desired height.
NOTE: Never use foot pedal to raise
load.
This is a lifting
device only. The
load must be supported immediately by
other appropriate means.
Keep hands, feet,
and clutter clear of
ground area when lowering the load.
Figure 1 — Hydraulic Service Jack Components
Release Knob
Foot Pedal
Saddle
Front Wheel
Caster
Grease Fitting
Nipple
Handle
SHI 020
Printed in China
11/07

Operation (cont.)
LOWERING
SLOWLY open the release valve by
turning the handle knob counterclockwise.
Avoid shock loads
created by quickly
opening and closing the release valve as
the load is being lowered. Shock loads
can create dangerously high operating
pressures within the hydraulic system,
causing system failure and resulting in
personal injury and/or property damage.
Maintenance
IMPORTANT: When adding or replacing
oil, always use a good grade hydraulic
jack oil. Do not use hydraulic brake fluid,
alcohol, glycerine, detergent motor oil or
dirty oil. Improper fluid can cause serious
internal damage to the jack rendering it
inoperative.
ADDING OIL
1. Position the jack on level ground and
fully lower the saddle. Remove oil filler/
vent plug.
2. Fill oil to within 3/8” of filler hole.
DO NOT OVERFILL! If overfilled,
the jack will not lower to published
minimum height. If underfilled, the
jack will not reach published maximum
height. Adjust fluid level as needed.
Always reinstall oil filler/vent plug before
use.
REPLACING OIL
1. Remove oil filler/vent plug.
2. Turn jack over and drain old oil out
through oil filler plug hole.
3. Refill with new oil through the oil filler
hole.
IMPORTANT: Do not allow dirt or other
foreign material to enter the hydraulic
system when filling.
4. After refilling, remove air from system
by opening release valve and rapidly
pumping handle several times.
Reinstall oil filler/vent plug when done.
LUBRICATION
1. Add lubricating oil to all moving parts as
needed.
2. Apply grease to grease fittings
periodically.
PREVENTING RUST
1. Check ram and piston periodically for
signs of corrosion. Clean as needed
with an oily cloth.
2. When not in use, store jack with saddle
and piston fully retracted.
2
Westward Operating Instructions and Parts Manual
Westward Hydraulic Quick Lifting
Jacks
®
5ML68A, 5ML69A and 5ML70A
Troubleshooting Chart
Jack will not lift load 1. Release valve not tightly closed 1. Ensure release valve tightly closed
2. Overload condition 2. Remedy overload condition
Jack bleeds off after lift 1. Same as above 1. Same as above
2. Hydraulic unit malfunctioning 2. Replace
Jack will not lower after unloading 1. Reservoir overfilled 1. Drain fluid to proper level
2. Linkages binding 2. Clean and lubricate moving parts
Poor lift performance 1. Fluid level low 1. Ensure proper fluid level
2. Air trapped in system 2. With ram fully retracted, remove oil
filler plug to let pressurized air
escape, reinstall oil filler plug
Will not lift to full height Fluid level low Ensure proper fluid level
Symptom Possible Cause(s) Corrective Action

3
Westward Operating Instructions and Parts Manual
1 * Power Unit G240701 G6510S-01 G6610S-01 1
2 Saddle G240702 G2501S-12 G6610S-02 1
3 Front Wheel Assembly G240703 G2501S-13 G6610S-03 2
4 Handle Set G240704 G6510S-04 G6610S-04 1
5 Rear Caster G240705 G6510S-05 G6610S-05 2
6 Oil plug/ Vent plug G240706 G6510S-06 G6510S-06 1
7 Return Spring G240707 G6510S-07 G6610S-07 1
8 Release Valve Cable G240708 G6510S-08 G6510S-08 1
9 Piston Links G240709 G6510S-09 G6610S-09 1
10 Greasing Nipple G240710 G2501S-11 G2501S-11 1
11 Foot Pedal G240711 G2501S-15 G2501S-15 1
(*) No repair parts available for power unit.
Reference Part Number For Models:
Number Description 5ML68A (4 Ton) 5ML69A (5 Ton) 5ML70A (10 Ton) Quantity
5ML68A, 5ML69A and 5ML70A
Repair Parts List
For Repair Parts, call 1-800-323-0620
24 hours a day - 365 days a year
Please provide following information:
-Model number
-Serial number (if any)
-Part description and number as shown in parts list
Figure 2 — Repair Parts Illustration for Models 5ML68A, 5ML69A and 5ML70A
Manufactured for Grainger International, Inc.
100 Grainger Pkwy., Lake Forest, IL 60045 U.S.A.
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Westward Hydraulic Quick Lifting
Jacks
LIMITED WARRANTY
WESTWARD ONE-YEAR LIMITED WARRANTY. Hydraulic Quick Lifting Jacks, Model covered in this manual,
are warranted by Westward to the original user against defects in workmanship or materials under normal use
for one year after date of purchase. Any part which is determined to be defective in material or workmanship
and returned to an authorized service location, as Westward designates, shipping costs prepaid, will be, as
the exclusive remedy, repaired or replaced at Westward's option. For limited warranty claim procedures, see
PROMPT DISPOSITION below. This limited warranty gives purchasers specific legal rights which vary from
jurisdiction to jurisdiction.
LIMITATION OF LIABILITY. To the extent allowable under applicable law, Westward's liability for consequential
and incidental damages is expressly disclaimed. Westward's liability in all events is limited to and shall not
exceed the purchase price paid.
WARRANTY DISCLAIMER.Westward has made a diligent effort to provide product information and illustrate
the products in this literature accurately; however, such information and illustrations are for the sole purpose of
identification, and do not express or imply a warranty that the products are merchantable, or fit for a particular
purpose, or that the products will necessarily conform to the illustrations or descriptions.
Except as provided below, no warranty or affirmation of fact, expressed or implied, other than as stated in the
"LIMITED WARRANTY" above is made or authorized by Westward.
PRODUCT SUITABILITY. Many jurisdictions have codes and regulations governing sales, construction,
installation, and/or use of products for certain purposes, which may vary from those in neighboring areas. While
Westward attempts to assure that its products comply with such codes, it cannot guarantee compliance, and
cannot be responsible for how the product is installed or used. Before purchase and use of a product, review the
product applications, and all applicable national and local codes and regulations, and be sure that the product,
installation, and use will comply with them.
Certain aspects of disclaimers are not applicable to consumer products; e.g., (a) some jurisdictions do not
allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion
may not apply to you; (b) also, some jurisdictions do not allow a limitation on how long an implied warranty
lasts, consequentially the above limitation may not apply to you; and (c) by law, during the period of this Limited
Warranty, any implied warranties of implied merchantability or fitness for a particular purpose applicable to
consumer products purchased by consumers, may not be excluded or otherwise disclaimed.
PROMPT DISPOSITION. Westward will make a good faith effort for prompt correction or other adjustment
with respect to any product which proves to be defective within limited warranty. For any product believed to
be defective within limited warranty, first write or call dealer from whom the product was purchased. Dealer will
give additional directions. If unable to resolve satisfactorily, write to Westward at address below, giving dealer's
name, address, date, and number of dealer's invoice, and describing the nature of the defect. Title and risk of
loss pass to buyer on delivery to common carrier. If product was damaged in transit to you, file claim with carrier.
Manufactured for Grainger International, 100 Grainger Pkwy., Lake Forest, Illinois 60045 U.S.A.
Westward Operating Instructions and Parts Manual 5ML68A, 5ML69A and 5ML70A
®