Westward 1ZKX4 Instructions for use

Westward Hydraulic
Service Jacks
Operating Instructions & Parts Manual 1ZKX4, 1ZKX5, 1ZKX6, 1ZKX9, 5M455A and 5M456A
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 service jacks are used for lifting part of a total vehicle (i.e., one
wheel). These 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.
Air models feature a powerful air motor, for effortless lifts of rated loads, conventional
foot pumping and handle pumping. These jacks are designed to meet applicable ANSI/
PALD Standards. RECOMMENDED AIR SUPPLY: 110-175 PSI at 7.8 CFM.
Specifications
Min. Max.
Model Capacity Length Height Height
1ZKX4 4 Ton 47-7/8" 5"”24"
5M455A (air model) 4 Ton 50-5/8" 5" 24”
1ZKX6 5 Ton 55-5/8" 7" 27"
5M456A (air model) 5 Ton 55-5/8" 7" 27"
1ZKX5 10 Ton 55" 7-1/8" 27-1/8"
1ZKX9 (air model) 10 Ton 55" 7-1/8" 27-1/8"
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.
Before Use
1. Secure handle into handle sleeve
with bolt provided. Tighten securely to
prevent accidental removal of handle
while in use.
2. Ensure that release mechanism is
properly connected by turning the
release knob clockwise and counter-
clockwise.
3. With saddle fully lowered, remove oil
filler plug/screw to allow any trapped
air to escape. Ensure that oil level is
within 3/8” from filler hole. Reinstall oil
filler plug/screw.
4. On air models, pour a teaspoon of air
tool lubricant into air supply inlet of air
control valve. Connect to air supply
and operate for 3 seconds to evenly
distribute lubricant.
5. Squirt a small amount of hydraulic jack
oil on pistons and thoroughly 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. To prevent inadvertent vehicle
movement, fully engage emergency
brake, put transmission gear in park.
2. Close release valve by turning the
release knob clockwise firmly. Center
jack saddle under lift point suggested
by vehicle manufacturer.
3. Pump the handle or foot pedal until
saddle contacts lift point. Ensure that
load is centered on saddle.
4. To lift, pump handle or squeeze air
control valve (air model) until load
reaches desired height.
NOTE: Never use foot pedal to raise
load. The jack is equipped with a handle
position lock. To release, pull lever
up, then back until lever is locked into
place. This will allow full range of handle
movement.
This is a lifting
device only. The
load must be supported immediately by a
pair of appropriately rated jack stands.
Release Knob
Air Control Valve
(for air models only)
Foot Pedal
Saddle
Figure 1 — Hydraulic Service Jack Components
SHI 009
Printed in China
10/10
Handle Sleeve
Handle Position Release
Front Wheel
Caster

Operation (Cont.)
LOWERING
Keep hands, feet, and clutter clear of
ground area before lowering the load.
Raise load high enough to clear
vehicle stands, then SLOWLY open the
release valve by turning handle knob
counterclockwise.
IMPORTANT: 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: Use only a good grade
hydraulic jack oil such as Mobil DTE
13M or equivalent. Avoid mixing types
of 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
plug/screw.
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 plug/screw
before use.
CHANGING OIL
1. Remove oil filler plug/screw.
2. Turn jack over and drain old oil out
through oil filler hole.
NOTE: Dispose of hydraulic oil in
accordance with local regulations.
3. Refill with new oil until within 3/8” of 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 plug/screw when done.
LUBRICATION
1. Add lubricating oil to all moving parts as
needed.
2. Apply grease to greasing nipple
periodically.
3. On air models 1ZKX9, 5M455A and
5M456A, pour air tool lubricant into
the air supply inlet at air control valve
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 Service Jacks
®
1ZKX4, 1ZKX5, 1ZKX6, 1ZKX9, 5M455A and 5M456A
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
3. Pressure of air supply is too low 3. Change to a suitable air source
(for air models)
Jack will lift but not maintaining pressure 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 G423-20000-000 G423-60000-000 G250-70000-000 G250-20000-000 1
2 Oil Filler Plug 5905-00100-200 5905-00100-200 5905-00100-200 5905-00100-200 1
3 Return Spring G423-00011-000 G423-00011-000 G251-00003-000 G251-00003-000 2
4 Universal Joint G423-30000-000 G423-70000-000 G250-30000-000 G250-30000-000 1
5 Piston Link G423-40000-000 G423-40000-000 G250-50000-000 G250-50000-000 2
6 * Air Motor N/A G240-01000-000 N/A A27060-0003 1
7 Air Hose Assembly N/A A190-01000-000 N/A A20060-0015 1
8 Air Control Valve N/A A20060-0007 N/A A20060-0007 1
9 Handle Set G251-40000-000 G100-90009-K01 G250-40000-000 G250-40000-000 1
10 Hose Clip N/A A070-40009-000 N/A A070-40009-000 1
11 Greasing Nipple 5701-00006-000 5701-00006-000 5701-00006-000 5701-00006-000 1
12 Saddle G423-00013-000 G423-00013-000 G251-00002-000 G251-00002-000 1
13 Front Wheel Assy. G423-90004-K01 G423-90004-K01 G250-90004-K01 G250-90004-K01 2
14 Rear Caster Assy. G250-90004-K02 G250-90004-K02 G250-90004-K02 G250-90004-K02 2
15 Foot Pedal G251-00009-000 G251-00009-000 G251-00009-000 G251-00009-000 1
16 Swivel Manifold N/A A27060-0001 N/A G27060-0001 1
(*) No repair parts available for power unit. and air motor
Reference Part Number For Models:
Number Description 1ZKX4 (4 Ton) 5M455A (4 Ton) 1ZKX6 (5 Ton) 5M456A (5 Ton) Quantity
1ZKX4, 1ZKX5, 1ZKX6, 1ZKX9, 5M455A and 5M456A
Please provide following information:
-Model number
-Serial number (if any)
-Part description and number as shown in parts list
Repair Parts List
For Repair Parts, call 1-800-323-0620
24 hours a day - 365 days a year
Figure 2 — Repair Parts Illustration for Models 1ZKX4,
1ZKX6, 5M455A, 5M456A (5 Ton model shown)
LIMITED WARRANTY
WESTWARD ONE-YEAR LIMITED WARRANTY.Hydraulic Service Jacks, Models 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. 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.
1
45
8
6
16
7
14
15
10
11
13
12
9
3
2
(manual model)
(air model)
Manufactured for Grainger International, Inc.
100 Grainger Pkwy., Lake Forest, IL 60045 U.S.A.

Reference Part Number For Models:
Number Description 1ZKX5 (10 Ton) 1ZKX9 (10 Ton) Quantity
Westward Operating Instructions and Parts Manual 1ZKX4, 1ZKX5, 1ZKX6, 1ZKX9, 5M455A and 5M456A
Repair Parts List
Manufactured for Grainger International, Inc.
100 Grainger Pkwy., Lake Forest, IL 60045 U.S.A.
Figure 3 — Repair Parts Illustration for Models 1ZKX5 and 1ZKX9
For Repair Parts, call 1-800-323-0620
24 hours a day - 365 days a year
1
4
5
8
6
16
7
14
15
10
11
13
12
9
2
Please provide following information:
-Model number
-Serial number (if any)
-Part description and number as shown in parts list
1 * Power Unit G100-80000-000 G100-40000-000 1
2 Oil Filler Screw G62S-03301-000 G62S-03301-000 1
3 Return Spring G100-00014-000 G100-00014-000 2
4 Universal Joint G100-90009-K04 G100-90009-K04 1
5 Piston Link G100-70000-000 G100-70000-000 2
6 * Air Motor N/A A27060-0003 1
7 Air Hose Assembly N/A A20060-0015 1
8 Air Control Valve N/A A20060-0007 1
9 Handle Set G100-90009-K01 G100-90009-K01 1
10 Hose Clip N/A A070-40009-000 1
11 Greasing Nipple 5701-00001-000 5701-00001-000 8
12 Saddle Assembly G100-90009-K02 G100-90009-K02 1
13 Front Wheel Assembly G100-90004-K02 G100-90004-K02 2
14 Rear Caster Assembly G661-70000-000 G661-70000-000 2
15 Foot Pedal G251-00009-000 G251-00009-000 1
16 Swivel Manifold N/A A27060-0001 1
(*) No repair parts available for power unit.and air motor
3
(manual model)
(air model)