Westward 3ZC71H - User Manual

To Next Page

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

/8" 69-

/4" 48-

/4"

P2 1-

/2 Ton 14" 75" 57-

/4"

P3 1 Ton 9-

/4" 81" 66-

/4"

/2 5" 86-

/2" 76-

/4"

3ZC72K P1 1 Ton 12" 85-

/8" 47"

/4 Ton 6-

/4" 87-

/4" 53"

/2 Ton

/4" 90-

/2" 59"

5Z010G P1

/4 Ton 9-

/8" 78-

/8" 38-

/8"

/2 Ton 5-

/8" 80-

/4" 42-

/8"

/4 Ton 2" 83-

/2" 46-

/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)

Need help?

Do you have a question about the Westward 3ZC71H and is the answer not in the manual?

The Westward Hydraulic Engine Crane is a robust lifting device designed for the safe and controlled lifting, lowering, and relocation of automotive and light truck engines and assemblies. It is not intended for use as a load support device; loads must be immediately transferred to appropriately rated support devices such as engine stands or workbenches. The crane is designed to meet applicable ANSI/PALD Standards, ensuring a level of safety and performance for its intended applications.

Function Description:

The primary function of the Westward Hydraulic Engine Crane is to facilitate the removal and installation of engines and assemblies in vehicles. It achieves this through a hydraulic power unit equipped with a built-in pressure overload bypass and a metered release valve. This allows the operator to lower the boom at a controlled rate of speed, preventing sudden drops and ensuring precise positioning of the load. The crane's design allows for it to be knocked down for storage or relocation and reassembled, making it a versatile tool for various workshop environments. The 3ZC72K model specifically features a space-saver design for compact storage, addressing concerns about workshop space.

Important Technical Specifications:

The manual provides specifications for three models: 3ZC71H, 3ZC72K, and 5Z010G, each with varying capacities and boom dimensions depending on the boom extension lock position.

Model 3ZC71H:

P1 (Boom Lock Position):
- Capacity: 2 Ton
- Hook Height (Min.): 18 3/8"
- Hook Height (Max.): 69 1/4"
- Boom Length: 48 3/4"
P2 (Boom Lock Position):
- Capacity: 1 1/2 Ton
- Hook Height (Min.): 14"
- Hook Height (Max.): 75"
- Boom Length: 57 3/4"
P3 (Boom Lock Position):
- Capacity: 1 Ton
- Hook Height (Min.): 9 1/4"
- Hook Height (Max.): 81"
- Boom Length: 66 3/4"
P4 (Boom Lock Position):
- Capacity: 1/2 Ton
- Hook Height (Min.): 5"
- Hook Height (Max.): 86 1/2"
- Boom Length: 76 3/4"

Model 3ZC72K:

P1 (Boom Lock Position):
- Capacity: 1 Ton
- Hook Height (Min.): 12"
- Hook Height (Max.): 85 3/8"
- Boom Length: 47"
P2 (Boom Lock Position):
- Capacity: 3/4 Ton
- Hook Height (Min.): 6 1/4"
- Hook Height (Max.): 87 3/4"
- Boom Length: 53"
P3 (Boom Lock Position):
- Capacity: 1/2 Ton
- Hook Height (Min.): 3/4"
- Hook Height (Max.): 90 1/2"
- Boom Length: 59"

Model 5Z010G:

P1 (Boom Lock Position):
- Capacity: 3/4 Ton
- Hook Height (Min.): 9 5/8"
- Hook Height (Max.): 78 1/8"
- Boom Length: 38 1/8"
P2 (Boom Lock Position):
- Capacity: 1/2 Ton
- Hook Height (Min.): 5 7/8"
- Hook Height (Max.): 80 3/4"
- Boom Length: 42 1/8"
P3 (Boom Lock Position):
- Capacity: 1/4 Ton
- Hook Height (Min.): 2"
- Hook Height (Max.): 83 1/2"
- Boom Length: 46 1/2"

Note: Lift capacity diminishes as boom length is extended. Various boom lock positions are indicated on the boom extension.

Usage Features:

Safety First: Users are warned to read, understand, and follow all printed materials provided with the device. The crane is strictly for lifting and lowering, not for load support. Loads must be transferred immediately to appropriate support devices.
Capacity Adherence: Never exceed the rated capacity for the selected boom position.
Surface Requirements: Always use the crane on a hard, level surface.
Boom Extension (3ZC71H): For model 3ZC71H, the boom extension should never be extended beyond the leg extension.
Load Movement: Before moving the crane, lower the load to the lowest possible point. When moving a load, raise it only high enough to clear the floor, move the crane slowly, and avoid sudden stops that could cause the load to swing violently.
Slings and Chains: Only use slings or chains with a rated capacity equal to or greater than that of the shop crane.
No Alterations: No alterations should be made to the product. Only use adapters and accessories provided by the crane manufacturer.
No Working Under Load: Never work on, under, or around a load supported by the device.
Vehicle Clearance: When removing an engine from a vehicle, ensure the front of the vehicle is not jammed against any part of the crane.
Purging Air: Before initial operation or if poor lifting performance is observed, purge air from the hydraulic system by opening the release valve, pumping the hydraulic unit, closing the valve, pumping until the boom raises, and then slowly lowering it.
Operating the Crane: Use the boom in its retracted position whenever possible. Extend the boom only when necessary to reach the load, ensuring the load is within the capacity limit for the selected boom position. Close the release valve (without overtightening) and pump to raise the load.
Changing Boom Extension: Do not attempt to change the boom position while under load. Place the boom in a horizontal position, move it, and secure it with the pin and "R" clip.

Maintenance Features:

Avoid Overloads: To ensure longevity and safe operation, avoid overloading the crane.
Hook Inspection: Keep the hook clean and inspect it occasionally for damage.
Lubrication: Oil all moving joints periodically (at least every 30 days) with a medium-weight machine oil or motor oil.
Hydraulic Jack Oil: Maintain a sufficient level of hydraulic jack oil in the reservoir.
Fluid Type: WARNING: Do not use brake or shock absorber fluids, as they contain ingredients harmful to the jack's oil seals.
Adding Oil:
1. Ensure the boom is in the lowered position.
2. Remove the oil fill plug from the hydraulic unit.
3. Squirt clean hydraulic jack oil into the hole. A few ounces are usually sufficient.
4. Fill to the level of the filler hole. Do not overfill.
Rust Prevention:
1. Check the ram and plunger every 3 months for rust or corrosion.
2. Clean as needed and wipe with an oily cloth.
Storage: When not in use, store the crane with the boom and pump plunger all the way down. For model 3ZC72K, store the crane with the legs folded and secured with the bolt pins and "R" lock pins. If moving the crane with legs in the storage position, do so with care and only across a smooth, level, seamless surface.

Troubleshooting Chart:

The manual includes a troubleshooting chart to address common issues:

Crane will not lift load:
- Possible Cause: Release valve not tightly closed, Overload condition.
- Corrective Action: Ensure release valve is tightly closed, Remedy overload condition.
Crane will lift, but not maintaining pressure:
- Possible Cause: Release valve not tightly closed, Overload condition, Hydraulic unit malfunctioning.
- Corrective Action: Ensure release valve is tightly closed, Remedy overload condition, Replace hydraulic unit.
Crane will not lower after unloading:
- Possible Cause: Reservoir overfilled, Linkages binding.
- Corrective Action: Drain fluid to proper level, Clean and lubricate moving parts.
Poor lift performance:
- Possible Cause: Fluid level low, Air trapped in system.
- Corrective Action: Ensure proper fluid level, With ram fully retracted, remove oil filler plug to let pressurized air escape, then reinstall.
Will not lift to full height:
- Possible Cause: Fluid level low.
- Corrective Action: Ensure proper fluid level.

Westward 3ZC71H Specifications

General

Brand	Westward
Model	3ZC71H
Category	Construction Equipment
Language	English