GENERAL 
 
 

The purpose of this specification is to generally describe the removal of four existing in-ground vehicle hoists, installation of three replacement in-ground hoists, and preparation of slab for above-ground portable hoists. (In lieu of a fourth in-ground hoist, the City will solicit responses for an above-ground portable hoist system at a later date). 
 

All work performed shall be in compliance with applicable building codes, safety codes and environmental regulations.  All hoists and related equipment shall be UL approved and shall comply with all federal, state, county, city, ANSI and OSHA regulations. 
 

The Contractor shall provide detailed shop drawings and calculations, which includes equipment layout and details for equipment connections to the building’s structural members.  The shop drawings shall be submitted and approved by the Engineer and the City of Type in the name of your city Building Division prior to the start of on-site construction work. 
 

Removal of Existing Equipment 
 

The successful bidder shall remove four existing in-ground air/hydraulic hoists currently in service in the City of Type in the name of your city Fleet Maintenance Shop.  The existing hoists are used on a daily basis and have not exhibited any indications of leaking hydraulic systems.  The identification plates of the existing hoists indicate that all hoists were manufactured by Weaver Manufacturing, Model EC105, 23,000 - 24,000 lb. capacity.    
 

• Two of the hoists are located in the east portion of the shop, (hereinafter referred to as Light Duty) -- these hoists are approximately forty years old.

• The remaining two hoists are located in the of the west portion of the shop, (hereinafter referred to as Heavy Duty) -- these hoists are approximately thirty years old.

Since the hoists are used in daily operation, it is imperative that the successful bidder coordinate removal and installation activities with the City of Type in the name of your city Fleet Manager to minimize interruption of work flow in the Fleet Maintenance Shop.  Considerations for coordination include, but are not limited to: 
 

• timing of project -- preferred time of project is during Summer months to take advantage of vacant hoists due to City employees on vacation;

• the contractor performing removal and installation of one hoist at a time to minimize loss of shop space while project is in progress;

• the potential of contractor performing demolition, removal and installation during weekend or off-hours to minimize noise and disruption in shop.    

Demolition and Removal 
 

The successful bidder shall demolish and remove portions of slab, slab base and soil required to install lift.  Concrete shall be saw cut on a neat line to the full depth of the slab.  Concrete, base material and soil removed shall be hauled form the site and not used for trench backfill. 
 

As each hoist site is demolished and excavated, the contractor shall coordinate with the Fleet Manager who will arrange for soil sampling tests through the City of Type in the name of your city Fire and Environmental Services Division.  The City will bear all costs associated with soil sampling. 
 

Demolished materials shall be considered property of the Contractor and shall be completely removed from the site.  Remove and transport debris, rubbish and excess material from the site in a manner that will prevent spillage on pavement, streets or adjacent areas.  Comply with Federal, State and Local hauling regulations. 
 

Assembly and Installation of Three Hoists and Preparation of Slab for Portable Hoists 
 

Hoists to be completely assembled and installed by successful bidder.  Installation shall include all electrical work, concrete work, plumbing, and double-containment work required to comply with applicable building code and manufacturer’s requirements. The entire vehicle hoist system shall be installed as indicated on approved shop drawings submitted by bidder, as required by codes, and as recommended by the hoist manufacturer. 
 

An installation, operation and service manual and complete repair parts lists showing illustrations of individual components shall be furnished by the manufacturer.  Hoist manufacturer field staff will be made available for instruction and consultation. 
 

Codes  The contractor shall comply with applicable requirements of the below listed standards: 
 

• Uniform Building Code, UBC 1994 Edition as adopted by the City of Type in the name of your city.

• Uniform Mechanical code, UMC, 1994 Edition

• National Electric Code, NEC, 1993 Edition

• City of Type in the name of your city Municipal Code, Title ??????                 

• American National Standards Institute, ANSI, Standard B153.1, “Safety Requirements for the Construction, Care and Use of Automatic Lifts.

Hoist Warranty    Hoists shall  be fully warranted from any defects for one year by the manufacturer.  Warranty shall contain specific language indicating that City of Type in the name of your city will not be responsible for any cost associated with required repairs due to failure of  materials/workmanship for one year after completed installation. 
 

Descriptive Literature Bidders shall include descriptive literature, illustrations and shop drawings of hoists and hoist installation with bid response. 
 

Tests  The completed vehicle hoists will be tested, at the Contractor’s expense, as required by ANSI Standard B153.1.  The Contractor shall at his expense make all modifications and repairs required to pass testing.  Contractor shall provide the City with documentation indicating that all hoists conform to manufacturer and ANSI standards. 
 

Training The Contractor or manufacturer’s representative shall provide training to City Maintenance Staff in the operation and maintenance of the vehicle hoist installed and specified herein.  The Fleet Manager shall be notified at least 7 days prior to the date of the proposed training course date. 
 

Backfilling/Concrete Finishing Upon completion of hoist installation in Bay #5, 17 and 18 and upon removal of existing vehicle hoist in Bay 4, contractor shall properly backfill all excavated areas and pour 3,000 PSI concrete to a depth of 6”  level to existing floor.  Backfill material and procedures shall comply with applicable building code regulations.  Concrete floor finish shall be smooth and conform to surrounding floor finish. 
 

A. Replace Two (2) Existing Two-Post Air/Hydraulic Hoists in Light Duty Area -- Bay #  17 & 18: 
 

1. Successful bidder shall furnish and properly install two (2) new, unused Rotary brand, Model AT70H or equal.  The lifts shall be an air/hydraulic type.  Each lift shall consist of two individual lifting assemblies in line with the longitudinal axis of the vehicle.  Each lifting cylinder will be equipped to engage the axle and suspension of the vehicle.  One of the two lifting cylinder assemblies will be movable along this same axis to effect variable spacing between the lifting cylinder assemblies.  The front movable unit will herein after be referred to as the “front post” and the stationary unit will be called the “rear post”. 
 

2. Capacity - Each lift shall be capable of raising 24,000 pounds (12,000 pounds with the front post and 12,000 pounds with the rear post) when supplied with a sufficient amount of oil at 165 pounds per square inch minimum. 
 

3. Wheel Base Adjustment - The front post shall be movable to provide proper engagement with vehicles ranging in wheel base from                        _______ inches minimum to __________     inches maximum.

4. Adapter Adjustment - Adapters shall be adjustable so that they will provide a maximum spread and retract to the following dimensions. 
 

a. Front Adapter - ______inches minimum adjustment, _____    inches maximum adjustment. 
 

b. Rear Adapter -             inches minimum,           inches    maximum adjustment. 
 

5. Lift Locks Hoists shall be equipped with telescoping front and rear lift locks. Front and rear legs shall be rated at the same capacity as the corresponding jacking units and shall be designed and constructed to provide a secure mechanical lock  at a minimum of 3” increments when hoist is raised. The locking latches shall be spring loaded to the locked position and shall be released at  the control location.  The lift locking leg shall be attached to the saddle to prevent rotation insuring proper location of releases at all times.  The locking leg shall prevent rotation of the piston assembly preventing bypass of top lugs in the cylinder assembly. 
 

6.  Controls The Hydraulic control valve for each hoist will be equipped with new composite design providing individual or simultaneous control of front and rear plungers.  The valve will be located in a suitable control box on the specified side of the front frame a the extreme front at an adequate lateral distance from the centerline of the main frame to permit operation without opening a  cover plate or door and suitable protected against damage by accidental drive over a capacity size vehicle.  Oil control valves shall be “deadman” type.  Valve cores and seals shall be arranged so that they may be serviced or replaced. 
 

7. Fiberglass Corrosion Resistant Coating  Each in-ground jack assembly shall be enclosed in fiberglass of general purpose polyester rigid with fiberglass reinforcement.  Installation value: D149-ASTM test method dielectric strength - short time is 380-500 volts per mil at 1/8 inch thickness.  This coating shall be factory applied under proper quality control procedure and tested to insure conformance.  The City shall be provided with a copy of the test results. 
 
 
 
 
 
 

B. Replace One (1) Existing Two-Post Air/Hydraulic Hoists in Heavy Duty Area  With an Electric/Hydraulic Hoist-- Bay #5: 
 

1. Successful bidder shall furnish and properly install one (1) new, unused Rotary brand, Model AT70E or equal. The lift shall be an electric/hydraulic type.  The lift shall consist of two individual lifting assemblies in line with the longitudinal axis of the vehicle.  Each lifting cylinder will be equipped to engage the axle and suspension of the vehicle.  One of the two lifting cylinder assemblies will be movable along this same axis to effect variable spacing between the lifting cylinder assemblies.  The front movable unit will herein after be referred to as the “front post” and the stationary unit will be called the “rear post”. 
 

2. Capacity - The lift shall be capable of raising 50,000 pounds (25,000 pounds with the front post and 25,000 pounds with the rear post) when supplied with a sufficient amount of oil at 260 pounds per square inch minimum. 
 

3. Wheel Base Adjustment - The front post shall be movable to provide proper engagement with vehicles ranging in wheel base from                        _______ inches minimum to __________     inches maximum.

4. Adapter Adjustment - Adapters shall be adjustable so that they will provide a maximum spread and retract to the following dimensions. 
 

a. Front Adapter - ______inches minimum adjustment, _____    inches maximum adjustment. 
 

b. Rear Adapter -             inches minimum,           inches    maximum adjustment. 
 

5. Lift Locks Hoists shall be equipped with telescoping front and rear lift locks. Front and rear legs shall be rated at the same capacity as the corresponding jacking units and shall be designed and constructed to provide a secure mechanical lock  at a minimum of 3” increments when hoist is raised. The locking latches shall be spring loaded to the locked position and shall be released at  the control location.  The lift locking leg shall be attached to the saddle to prevent rotation insuring proper location of releases at all times.  The locking leg shall prevent rotation of the piston assembly preventing bypass of top lugs in the cylinder assembly. 
 
 
 
 
 
 

6.  Controls The Hydraulic control valve for each hoist will be equipped with new composite design providing individual or simultaneous control of front and rear plungers.  The valve will be located in a suitable control box on the specified side of the front frame a the extreme front at an adequate lateral distance from the centerline of the main frame to permit operation without opening a  cover plate or door and suitable protected against damage by accidental drive over a capacity size vehicle.  Oil control valves shall be “deadman” type.  Valve cores and seals shall be arranged so that they may be serviced or replaced. 
 

7. Fiberglass Corrosion Resistant Coating  Each in-ground jack assembly shall be enclosed in fiberglass of general purpose polyester rigid with fiberglass reinforcement.  Installation value: D149-ASTM test method dielectric strength - short time is 380-500 volts per mil at 1/8 inch thickness.  This coating shall be factory applied under proper quality control procedure and tested to insure conformance.  The City shall be provided with a copy of the test results. 
 

8. Hydraulic Oil Tank and Power Unit A Rotary brand, Model P571 or equal, combination hydraulic oil tank/power unit (hereinafter referred to as “combination unit”) shall be furnished and installed by the successful bidder.  The combination unit shall be above-ground design with a minimum hydraulic oil capacity of 95 gallons.  The power unit shall be furnished with the tank shall be three phase, 220 volt AC, submerged design capable of  pumping 40 gallons/ minute @  350 PSI.  The pump shall have a magnetic starter with remote push button control.  The combination unit shall utilize a bio-degradable type of hydraulic oil such as Pennzoil Ecolube. 
 

9. Electric Service Point  The contractor shall install new, properly sized, conductors, conduit , circuit breaker(s) and receptacles  from the end of the existing 3 phase electrical sub panel to the pump motor.  Installation of conduit or other related components shall not interfere with hoist operation or activity within the shop area.  The Contractor shall furnish and install a new 3 phase circuit breaker and conductors sized to accommodate the hydraulic pump motor. 
 
 
 
 
 
 
 
 
 

MANDATORY SITE INSPECTION: 
 

A mandatory site inspection is required for consideration of bid response.  Site inspections will be available by appointment during the week of May 12, between the hours of 9:00 AM and 3:30 PM at: 
 

City of Type in the name of your city Fleet Maintenance Shop

Type in your address

Type in the name of your city,  California 94088 
 

Please call Type in your name, Fleet Manager by 5:00 p.m., Friday, May 9th to arrange for an appointment. for an appointment for the mandatory site inspection. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

SUGGESTED VENDORS 
 

Edwards & Son

41925 Osgood Road

Fremont, CA  94539

Attention:  Kelly 
 
 

Ferris Hoist

309 Sango Court

Milpitas, CA  95035

Attention:  Butch 
 
 

Holstein and Chandler

985 Terra Bella

Mt. View, CA  94043

Attention:  Ed