Westward 3ZC71H Instructions for use

Westward Hydraulic
Engine Cranes
Operating Instructions & Parts Manual 3ZC71H, 3ZC72K and 5Z010G
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 engine cranes are for lifting, lowering, and relocating loads to suitable support devices such as an engine stand.
Power Units are equipped with built-in pressure overload bypass and metered release valve enabling the operator to lower the boom
at a controlled rate of speed. Applications include removal and installation of automotive and light truck engines and assemblies.
Cranes can be knocked down for storage or relocation and reassembled. 3ZC72K features space saver design for compact storage.
These cranes are designed to meet applicable ANSI/PALD Standards.
Specifications
Ext. Boom Hook Height
Model Lock Position* Capacity Min. Max. Boom Length
3ZC71H P1 2 Ton 18 3/8" 69-1/4" 48-3/4"
P2 1-1/2Ton 14" 75" 57-3/4"
P3 1 Ton 9-1/4" 81" 66-3/4"
P4 1/2 5" 86-1/2" 76-3/4"
3ZC72K P1 1 Ton 12" 85-3/8" 47"
P2 3/4 Ton 6-1/4" 87-3/4" 53"
P3 1/2 Ton 3/4" 90-1/2" 59"
5Z010G P1 3/4Ton 9-5/8" 78-1/8" 38-1/8"
P2 1/2 Ton 5-7/8" 80-3/4" 42-1/8"
P3 1/4 Ton 2" 83-1/2" 46-1/2"
NOTE: Lift capacity diminishes as boom length is extended.
(*) Various boom lock positions are indicated on the boom extension.
General Safety Information
Before using this product read,
understand, and follow all printed
materials provided with, and on this device. This crane is
designed for lifting and lowering automotive and light truck
engines and assemblies only. Do not use as a load support
device. Immediately transfer the load to appropriately rated
support device such as an engine stand or work bench
capable of supporting rated capacity loads.
Do not exceed rated capacity. Use only on a hard, level
surface. For model 3ZC71H, never extend boom extension
beyond leg extension. Before moving, lower the load to the
lowest possible point. Use only slings or chains with a rated
capacity equal to or greater than that of the shop crane. Do
not allow load to swing or drop violently while moving or
lowering. No alterations shall be made to this product. Use
only those adapters and accessories provided by the crane
manufacturer. Never work on, under, or around a load
supported by this device. Failure to heed these warnings
may result in personal injury and/or property damage.
NOTE: When removing an engine from a vehicle, ensure that the
front of the vehicle is not jammed up against any part of the crane.
SHI 001
Printed in China
02/10
Boom
Boom Extension
Hook
Front Extension Leg
Base Frame
Hydraulic
Unit
Rear Estension Leg
handle
Post
Struts
Caster
Figure 1 — Typical Engine Crane Components (3ZC71H shown)

Assembly
MODEL 3ZC71H (Refer to Figure 2)
1. Attach swivel casters (No.12) to front
extension legs (No.8) and rear extension
legs (No.9) with washers and bolts
(No.13).
NOTE: Do not tighten any bolts unless told
to do so.
2. Place rear extension leg & front
extension legs inside base frame (No.1)
with caster facing down and secure with
bolt in frame, tighten bolts.
3. Place post (No.4) on the base frame and
secure with bolts (No.18).
4. Put struts (No.10) on each side of post at
top and secure with bolt and nut (No.14).
Do not tighten. Place bottom of support
on inside of base frame and secure with
bolt and nut. (No.14).
5. Attach base bracket (No. 20) to hydraulic
unit (No.7) with bolts and nuts.
6. Attach hydraulic unit assembly on post
using bolt and nut (No.17).
7. Place boom (No.5) on top of post and
secure with bolt and nut (No.16). Pump
ram using handle (No.19) until ram is
approximately 2” above top. Place front
mounting bracket on boom, on top of
ram and secure with bolt and nut
(No.15). Tighten all bolts in step 8 and
step 9.
8. Slide boom extension (No.6) inside of
boom, making sure slot for chain & hook
assembly (No.11) faces down and
secure with bolt and nut (No.17) in
correct hole on boom for your particular
job.
9. Slide chain and hook through slot in
lower front of boom extension and
secure with bolt and nut (No.11).
NOTE: Check all bolts and nuts for
tightness, including those pre-assembled at
the factory. Tighten where required.
2
Westward Operating Instructions and Parts Manual
Westward Hydraulic Engine Cranes
®
3ZC71H, 3ZC72K and 5Z010G
Figure 2 — Assembly Parts Illustration for Models 3ZC71H
IMPORTANT: Reference numbers
are for assembly purposes only. See
appropriate replacement parts
illustration of your model for parts
ordering.
1
10
4
5
6
7
8
9
11
20
19
12
13 14
17
15
17
15
16
17
18
18
Size of Hardware Kits
11*- bolt & nut - M12X75 & M12
13 - bolt & washer - M8X16
14 - bolt & nut - M12X90 & M12
15 - bolt & nut - M16X90 & M16
16 - bolt & nut - M20X120 & M20
17 - bolt & nut - M16X90 & M16
18 - bolt - M12X25
20*- bolt, washer & nut - M10X30 & M10
* part of assembly
14

Models 3ZC71H, 3ZC72K and 5Z010G
3
Westward Operating Instructions and Parts Manual
IMPORTANT: Reference numbers
are for assembly purposes only. See
appropriate replacement parts
illustration of your model for parts
ordering.
Figure 3 — Assembly Parts Illustration for Model 3ZC72K
MODEL 3ZC72K (Refer to Figure 3)
1. Install 3 3/8” wheels (No.18) and casters
(No.13 & 15) to base frame (No.1)
using bolts, washers and nuts.
2. Install casters (No.13 ) to front legs
(No.2) using bolts, washers and nuts
(No.25).
3. Attach front legs (No.2 ) to base frame
using bolt pin, lock washers and bolts
(No.14 & 16).
NOTE: Do not tighten any bolts unless
told to do so.
4. Attach post (No.4) to base frame using
bolts and washers (No.23). Post must
lean towards the rear of the base frame
as shown. Leave nuts finger tight.
5. Attach struts (No.7) to post with bolt and
nut (No.21). Leave nut finger tight.
6. Attach struts to inside of base frame
with two bolts and nuts (No.24).
7. Tighten post to base frame. Now
proceed to fully tighten strut to post and
strut to base frame bolts.
8. Install hydraulic unit (No.9) to the base
bracket (No.27) with two bolts and nuts.
9. Position hydraulic unit with base
bracket between mounting ears on
post, and attach using bolt and nut
(No.22)
NOTE: Handle socket of hydraulic unit
must face the front of the base frame as
shown. Tighten nut. Lean hydraulic unit
assembly back against post.
10. Connect boom (No.5) to post using
bolt and nut (No.20).
11. Hold boom and pivot hydraulic unit out
away from post and position ram
between mounting bracket on boom.
Attach hydraulic unit to boom with bolt
and nut ( No.19). Tighten nut.
12. Slide boom extension (No.6) into
boom and secure in retracted position
using lock pin and “R” pin (No.12).
13. Slide square washer (No.10) into
boom using bolt and washer.
14. Insert hook (No.8) to boom extension
using bolt and nylon nut.
NOTE: Check all bolts and nuts for
tightness, including those pre-assembled
at the factory. Tighten where required.
FRONT LEG STORAGE POSITION
Remove pins from base and pull front legs
out and up to post. Use “R” lock pin
assemblies for storage.
5
10
1
2
4
6
78
9
12
12
13
14
15
16 18 25
19
20
21
21
22
23
24
13
8
27
Size of Hardware Kits
8* - bolt, washer & nut - M12X65 & M12
10*- bolt & washer - M8 X 16
15 - bolt & washer - M8X16
17*- bolt, washer & nut - M12X65 & M12
18*- bolt, washer & nut - M12X65 & M12
19 - bolt, washer & nut - M16X90 & M16
20 - bolt, washer & nut - M20X100 & M20
21 - bolt, washer & nut - M12X90 & M12
22 - bolt, washer & nut - M16X70 & M16
23 - bolt & washer - M12X70
24 - bolt & washer - M12X30
25 - bolt, washer & nut - M8X16 & M8
27* - bolt, washer & nut - M10X30 & M10
* part of assembly
11

MODEL 5Z010G (Refer to Figure 4)
1. Attach swivel casters (No.13) to rear
support (No.1) with bolts, nuts and
washers (No.15).
2. Attach wheel (No.17) to front legs (No.2
& 3) with bolts and nuts.
NOTE: Do not tighten any bolts unless
told to do so.
3. Attach front legs (No.2 & 3) to rear
support (No.1) with bolts and nuts
(No.25).
4. Place post support (No.26) on front legs
and secure with bolts and washers
(No.27).
5. Place post (No.4) on post support
(No.26) and secure with bolts and nuts
(No.23).
6. Put strut (No.7) on each side of post,
secure the top with bolts and nuts
(No.21), place angled portion of support
on inside of each front leg and secure
with bolt and nut (No.24).
7. Attach boom (No.5) on post with bolt
and nut (No.20).
8. Attach base bracket (No.29) to
hydraulic unit (No.9) with bolts and
nuts. Place the hydraulic unit with base
bracket to post, secure with bolt and nut
(No.22) then pump the unit up until it
reaches the boom and attach the upper
part of unit to boom with bolt and nut
(No.19).
9. Slide boom extension (No.6) inside of
boom (No.5), secure square washer
(No.10) and bolt and lock washer
(No.10), and secure the boom
extension to boom in correct hole for
particular job with lock pin and “R” pin
(No.12).
10. Attach hook (No.8) to boom extension
(No.6) with bolt and nut.
11. Tighten all bolts and nuts, the engine
crane is ready for use.
IMPORTANT: Use boom in its retracted
position whenever possible. Extend boom
only when necessary to reach load. Be
sure load is within capacity limit for boom
position selected. If load is to be moved
to another location, raise only high enough
to clear floor, move crane slowly and avoid
sudden stop that could cause load to
swing (all models) violently.
4
Westward Operating Instructions and Parts Manual
Westward Hydraulic Engine Cranes
®
3ZC71H, 3ZC72K, and 5Z010G
Figure 4 — Assembly Parts Illustration for Model 5Z010G
IMPORTANT: Reference numbers
are for assembly purposes only. See
appropriate replacement parts
illustration of your model for parts
ordering.
1
2
3
4
5
6
21 8
9
10
12
12
13
15
17
19
20
20
21
7
22
22
23
24
25
26
27
23
25
29
9
Size of Hardware Kits
8* - bolt, washer & nut - M12X70 & M12
10*- bolt - M8 X 16
15 - bolt, washer & nut - M8X16 & M8
17*- bolt, washer & nut - M12X70 & M12
19 - bolt, washer & nut - M12X85 & M12
20 - bolt, washer & nut - M16X90 & M16
21 - bolt, washer & nut - M12X70 & M12
22 - bolt, washer & nut - M14X65 & M14
23 - bolt, washer & nut - M10X60 & M10
24 - bolt, washer & nut - M12X30 & M12
25 - bolt, washer & nut - M12X70 & M12
27 - bolt & washer - M12X20
29* - bolt, washer & nut - M8X30 & M8
* part of assembly

5
Westward Operating Instructions and Parts Manual
Operation
PURGE AIR PRIOR TO OPERATION
Sometimes during shipment and/or
handling, air gets into hydraulic system
causing poor lifting performance. To
correct this:
1. Open release valve by turning it
counterclockwise two full turns.
2. Pump hydraulic unit about 6 full strokes.
3. Close release valve and continue
pumping until boom has raised several
feet.
4. Open release valve and slowly lower
boom.
NOTE: Avoid overtightening release valve
- the tighter it is closed the harder it is to
crack open for very slow lowering.
OPERATING THE CRANE
NOTE: Capacity of crane varies with
boom position. (See boom or
Specifications chart.)
1. Use boom in its retracted position,
whenever possible.
2. Extend boom only when necessary to
reach load.
3. Be sure load is within capacity limit for
boom position selected.
4. Close release valve (do not overtighten)
and pump to raise load to desired
height.
IMPORTANT: If load is to be moved to
another location, raise only high enough to
clear floor. Move crane slowly and avoid
sudden stops that could cause load to
swing violently.
CHANGING BOOM EXTENSION
Do not try to change boom position while
under load. Do not exceed load capacity.
NOTE: Check load rating located on
boom or on Specifications chart.
1. Place boom in horizontal position.
2. Move boom and secure with pin and “R”
clip.
Maintenance
GENERAL
1. Avoid overloads.
2. Keep hook clean and inspect
occasionally for damage.
3. Oil all moving joints periodically (at least
every 30 days) with a medium weight
machine oil or motor oil.
4. Keep sufficient hydraulic jack oil in
reservoir.
Do not use brake or
shock absorber
fluids. They have ingredients harmful to the
jack’s oil seals.
ADDING OIL
1. Make sure boom is in lowered position.
2. Remove oil fill plug from hydraulic unit.
3. Squirt clean hydraulic jack oil into hole.
NOTE: In most cases, the addition of a
few ounces of oil is sufficient.
4. Fill to level of filler hole. Do Not
Overfill.
RUST PREVENTION
1. Check ram and plunger every 3 months
for rust or corrosion.
2. Clean as needed and wipe with an oily
cloth.
NOTE: When not in use always position
boom and pump plunger all the way down.
STORAGE
When not in use, store the crane with the
legs folded and secured with the bolt pins
and “R” lock pins (Model 3ZC72K only).
NOTE: If necessary to move the crane
with legs in the storage position, do so
with care and only across a smooth,
level, seamless surface.
See illustration below for details of
securing legs for storage.
Models 3ZC71H, 3ZC72K and 5Z010G

Westward Operating Instructions and Parts Manual
Westward Hydraulic Engine Cranes
3ZC71H, 3ZC72K, and 5Z010G
Troubleshooting Chart
Crane will not lift load 1. Release valve not tightly closed 1. Ensure release valve tightly closed
2. Overload condition 2. Remedy overload condition
Crane will lift, but not maintaining 1. Release valve not tightly closed 1. Ensure release valve tightly closed
pressure 2. Overload condition 2. Remedy overload condition
3. Hydraulic unit malfunctioning 3. Replace
Crane 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 1. Fluid level low 1. Ensure proper fluid level
Symptom Possible Cause(s) Corrective Action
6

7
Westward Operating Instructions and Parts Manual 3ZC71H, 3ZC72K and 5Z010G
Figure 5 — Repair Parts Illustration for Model 3ZC71H
1 Hydraulic Unit BL80-60000-000 1
2 Oil Filler Plug 5905-00100-200 1
3 Pump Handle BL80-20000-000 1
4 Hydraulic Unit Bracket T473-00005-000 1
5 Boom Extension T473-00006-000 1
6 Braces T473-00001-000 2
7 Rear Leg Extension T473-40000-100 2
8 Frong Leg Extension T473-50000-100 2
9 Caster, 3-1/2" T473-04000-000 4
10 Hook Assembly T473-05000-000 1
 • HardwareKit T473-06000-000  1 
** Seal Kit, Hydraulic Unit BL800S-034 1
Reference Part Number For Model:
Number Description 3ZC71H (2 Ton) Quantity
Repair Parts List
IMPORTANT: Boom lock
positions and load rating are
indicated on boom.
5
8
9
7
Please provide following information:
-Model number
-Serial number (if any)
-Part descriptions and number as shown in parts list
Address parts correspondence to:
Grainger Parts
P.O. Box 3074
1657 Shermer Road
Northbrook, IL 60065-3074 U.S.A.
For Repair Parts, call 1-800-323-0620
24 hours a day - 365 days a year
3
6
10
1
4
2

31
8
Westward Operating Instructions and Parts Manual 3ZC71H, 3ZC72K and 5Z010G
IMPORTANT: Boom lock
positions and load rating
are indicated on boom.
5
6
11
9
8
7
1
10
Please provide following information:
-Model number
-Serial number (if any)
-Part descriptions and number as shown in parts list
Address parts correspondence to:
Grainger Parts
P.O. Box 3074
1657 Shermer Road
Northbrook, IL 60065-3074 U.S.A.
For Repair Parts, call 1-800-323-0620
24 hours a day - 365 days a year
Figure 6 — Repair Parts Illustration for Model 3ZC72K
1 Hydraulic Unit BL80-50000-000 1
2 Oil Filler Plug 5905-00100-100 1
3 Pump Handle BL80-20000-000 1
4 Hydraulic Unit Bracket T473-00005-000 1
5 Boom Extension T474-08000-000 1
6 Braces T474-00001-000 1
7 Front Wheel, 3-1/2" T474-00002-000 2
8 Middle Wheel. 3-1/2" T474-00002-000 2
9 Caster, 3-1/2" T474-04000-000 2
10 Hook Assembly T474-07000-000 1
11 Lock Pin T474-03000-000 2
 • HardwareKit T474-50000-000  1 
** Seal Kit, Hydraulic Unit BL800S-034 1
Reference Part Number For Model:
Number Description 3ZC72K (1 Ton) Quantity.
3
4
Repair Parts List
2

Westward Operating Instructions and Parts Manual 3ZC71H, 3ZC72K and 5Z010G
1 Hydraulic Unit BL40-40000-000 1
2 Pump Handle BL80-20000-000 1
3 Hydraulic Unit Bracket T010-00005-000 1
4 Boom Extension T077-10000-000 1
5 Braces T077-00001-000 1
6 Front Wheel, 3-1/2" T474-90004-K18 2
7 Caster, T474-04000-000 2
8 Hook Assembly, Chain and Hook T375-50000-000 1
Reference Part Number For Model:
Number Description 5Z010G (3/4 Ton) Quantity
9
Figure 7 — Repair Parts Illustration for Model 5Z010G 6
4
1
3
5
IMPORTANT: Boom lock
positions and load rating
are indicated on boom.
Please provide following information:
-Model number
-Serial number (if any)
-Part descriptions and number as shown in parts list
Address parts correspondence to:
Grainger Parts
P.O. Box 3074
1657 Shermer Road
Northbrook, IL 60065-3074 U.S.A.
2
Repair Parts List
7
8
For Repair Parts, call 1-800-323-0620
24 hours a day - 365 days a year

10
3ZC71H, 3ZC72K and 5Z010G
Westward Operating Instructions and Parts Manual
LIMITED WARRANTY
WESTWARD ONE-YEAR LIMITED WARRANTY.Hydraulic Engine Cranes, 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. 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 Hydraulic Engine Cranes
®