Challenger Lifts EW1020-QC Instruction manual

Rev.2024/01/30
MODEL EW1020 / EW1020-QC
(10,000 LB CAPACITY – 2500 LB PER ARM)
MODEL EW1220 / EW1220-QC
(12,000 LB CAPACITY – 3000 LB PER ARM)
INSTALLATION,OPERATION &MAINTENANCE MANUAL
Two Post, Inground, Cassette EnviroLift™
2311 South Park Rd. Louisville, Kentucky 40219
Email:[email protected]Web site:www.challengerlifts.com
Office 800-648-5438 / 502-625-0700 Fax [phone]
IMPORTANT: READ THIS MANUAL COMPLETELY BEFORE
INSTALLING or OPERATING LIFT

Models EW1020, EW1220
Installation, Operation and Maintenance
2 EW-IOM-A.doc Rev.2024/01/30

Models EW1020, EW1220
Installation, Operation and Maintenance
3 EW-IOM-A.doc Rev.2024/01/30
General Specifications
See Pa
g
e 3 EW1020
/
EW1020-QC EW1220
/
EW1220-QC
ARise Hei
g
ht
(
Screw Pads Hi
g
hest Position
)
78” 78”
BOverall Width 117 1/2” 121 1/2"”
CDrive Thru 88” 88”
D
A
rm Reach
(
min/max
)
20” Min / 42” Max 20” Min / 48 1/2” Max
Screw Pad Hei
g
h
t
4” / 6 1/8” Max 4 1/2"/ 6 1/4" Max
*Lifting Capacity
(Hydraulic Pressure at Cap.)
10,000 lbs.
(2550 psi)
12,000 lbs.
(3050 psi)
Max Load Per Arm/Pad 2,500 lbs. 3,000 lbs.
**Liftin
g
Time 41 Sec.
/
24 Sec. 63 Sec.
/
38 Sec.
Standard Motor
Quick Cycle Motor
Optional
2HP, 208 – 230V, 1PH, 60 Hz
3HP, 208 – 230V, 1PH, 60 Hz
2HP, 208
–
230V, 3 Ph, 50/60 Hz
* Lift capacity ratings are based on loads equally distributed on all four arms.
**Lifting and lowering speeds may vary depending on the type, viscosity, and
temperature of the oil as well as vehicle weight.

Models EW1020, EW1220
Installation, Operation and Maintenance
4 EW-IOM-A.doc Rev.2024/01/30
VERTICAL CLEARANCE
Check the height of the area where the lift is to be
installed. Clearance should be calculated based
on the full raised height of the lift.
Failure by purchaser to
provide adequate
clearance could result in
unsatisfactory lift performance, property
damage, or personal injury.
LOCATION
This lift has been evaluated for indoor use only
with an operating ambient temp. range of 5 –
40°C (41– 104°F). Outdoor Installation is
Prohibited.
ELECTRICAL REQUIREMENTS
For lift installation and operation, it is necessary
to have a dedicated circuit with circuit breaker or
time delay fuse. Refer to wiring diagram for
circuit sizing.
FLOORING
A qualified person should be consulted to
address seismic loads and other local or state
requirements.
SAFETY NOTICES AND DECALS
For your safety, and the safety of others, read and
understand all of the safety notices and decals
included here.
READ ENTIRE MANUAL BEFORE
ASSEMBLING,INSTALLING,OPERATING,OR
SERVICING THIS EQUIPMENT.
PROPER MAINTENANCE AND INSPECTION IS
NECESSARY FOR SAFE OPERATION.
DO NOT OPERATE A DAMAGED LIFT.
Safety decals similar to those shown here are
found on a properly installed lift. Be sure that all
safety decals have been correctly installed on the
Power Unit reservoir. Verify that all authorized
operators know the location of these decals and
fully understand their meaning. Replace worn,
faded, or damaged decals promptly.
Do not attempt to raise a
vehicle on the lift until the
lift has been correctly
installed and adjusted as described in this
manual.
WARNING
WARNING

Models EW1020, EW1220
Installation, Operation and Maintenance
5 EW-IOM-A.doc Rev.2024/01/30
WARNING:
DO NOT permit personnel to operate lifts who are not familiar with the information contained in
these instructions.
Safety devices and controls are provided for your protection. DO NOT alter any devices to serve
a special purpose. Never interfere with safety features built into the controls or the lift lock. DO
NOT block valves open.
Study these instructions carefully to become familiar with the general installation procedure. Before
installing your Challenger EnviroLift™, inspect the lift to ensure that it is complete and undamaged. If it is
apparent that the lift has been mishandled in shipment, or if parts or assemblies are missing, note the
damage or missing part(s) on the shipping papers and notify Challenger Lifts, Inc. immediately.
The Challenger 2-Post EnviroLift™ consists of two packages, the lift-containment assy. and an accessory
package. This accessory package includes the superstructures, arms, power unit and hardware box.
In addition to the components furnished with the lift, certain tools, equipment, supplies and materials are
required. The installer or purchaser of the lift must furnish these items:
TOOLS &SUPPLIES
(MINIMUM REQUIRED)
Forklift, cherry picker, crane, winch truck, chain falls, winches, or hoist to unload and erect lift.
Machinist level, or four-foot carpenters’ level to check cylinder plumb
Drywall Square, chalk line, or transit for bay layout
Wiring, conduit, wiring devices for electrical power supply, Shop Air supply with filter lubricator.
Hand tools for lift assembly
6” x 6” wood beam (length will vary based on soil conditions and pit width)
Quantity 4 of each: 1/2-13 x 18” lg all thread rods, 1/2 Washers, and 1/2-13 nuts.
2" sch. 40 PVC for air / hyd. chase
12 Qtz 10wt Dexron III ATF
Hydraulic Hose (4000 psi working/16000 psi min. Burst) SAE #6 9/16-18 37° Female Swivel Both
Ends. Fittings must conform to the SAE J514 Guidelines. This hose will connect the power unit to
a fitting in the center of the tub. The length of hose needed to run from the chase to the fitting is
50inches.
Five yards pea gravel as backfill.
Accepted Oils – Do not use oils with detergents, hydraulic fluid is not provided with the lift shipment.
-10 wt. anti-foam, anti-rust hydraulic / biodegradable oil
-Dexron III ATF
Installation Procedure
SAFETY REQUIREMENTS FOR INSTALLATION AND SERVICE
Refer to ANSI/ALI ALIS (current edition)
IMPORTANT:Always wear safety glasses while installing lift.

Models EW1020, EW1220
Installation, Operation and Maintenance
6 EW-IOM-A.doc Rev.2024/01/30
Location
Locate lift to allow plenty of working room on all sides. Allow room for workbenches at front of bay, aisles,
lubrication equipment or other obstructions. Check overhead clearances. Ordinarily 12 feet is ample for
automobiles. Observe the recommended minimums in Fig. 1.
13'-0" Min.
Nearest Obstruction
12' Min.
7'-0" Min.
Fig. 1
New Construction Excavation
New construction requires an excavation as shown in Fig. 2. NOTE: Concrete must be finished to edge
of concrete tie (3/16” below top of concrete ties, see Fig. 2 below). All depths are measured from the
finished floor level. Failure to comply will void the warranty. The power unit may be installed on the
nearest wall or floor pedestal. The power unit should be located out of the working area around the lift
and vehicle, but close enough to allow good visibility while operating the lift. Hydraulic and air lines from
the lift should be recessed under the slab in a 2” sch. 40 PVC chase. CLI will supply the proper coupling
to join the PVC chase to the lift.
C
oncre
t
e
Ti
e
A
nc
h
o
r
102 1/4"
9'-0"
11'-6"
3'-0"
Clean Pea Gravel
Back Fill
2" PVC Chase
8 1/4"
18"
135° Typ.
3/16"
Finished Floor
Fig. 2

Models EW1020, EW1220
Installation, Operation and Maintenance
7 EW-IOM-A.doc Rev.2024/01/30
Existing Facility Excavation
Excavation is the same as in new construction. However, it will be necessary to break out a trench 6"-8"
wide by 12" deep to run the PVC chase.
Installation
1. For best balance of lift / containment assembly while lowering into excavation, sling using the
shipping straps provided. See Figure 3. DO NOT remove or loosen any of the bearing assembly
bolts at this time.
Note: The assembly weighs approximately 3600 lbs.
Hoist
Bolts Removed For
1/2-13 x 18 All Thread
PVC Chase Inlet
Lift /Containment Assembly
Bolts Removed For
1/2-13 x 18 All Thread
Fig. 3
2. Using a chain hoist and tripod, forklift, crane, etc. for lifting; lower the lift / containment assembly
in the excavation being sure the PVC inlet hole is toward the power unit, until the top of the
assembly is 1/8" to 1/4" above finished floor level and aligned with the previously determined
center lines. Refer to Figures 1 and 3.
3. Remove the outer two bolts from each end of the center cover plate and replace with 1/2-13 x 18
threaded rods. Attach two 6 x 6 timbers using ½-13 nuts and washers, to support the lift /
containment assembly on the existing floor or forms. Remove the shipping straps and replace
the bolts. Torque the bolts to 60 ft-lbs. Bend concrete tie anchors out 90 degrees and down 45
degrees. Refer to Figures 3 and 4.

Models EW1020, EW1220
Installation, Operation and Maintenance
8 EW-IOM-A.doc Rev.2024/01/30
Finished
Floor
1/2-13 x 18
All Thread Rod
1/2-13
Nut and Washer
6 x 6 Support
1/2-13 x 18
All Thread Rod
Lift / Containment
Assembly
Concrete Tie Anchor
1/2-13
Nut and Washer
Fig. 4
4. Plumb and level using a machinist level on top of each bearing assembly. Level in several
directions. DO NOT level off the lift frame.
5. Run the 2" PVC chase from the control area and join to the lift / containment assembly using the
coupling provided. Use a soap water solution to ease assembly. All PVC joints must be leak
proof. The power unit end of the chase should be finished as shown in Fig. 5 to prevent
contamination from entering the chase, while allowing the system to breathe.
Fig. 5
Note: Mount power unit high enough to avoid inadvertently depressing the
lowering valve handle with a tool cart, oil pan, etc.
18.0" Min.
2" PVC Chase
Lock Release Valve Bracket Assy.
Power Unit
Wall Mounting Bracket
5/16-18 Hex Bolt, Washer and Nut

Models EW1020, EW1220
Installation, Operation and Maintenance
9 EW-IOM-A.doc Rev.2024/01/30
6. Before beginning to back fill take care to protect the plunger tops, cover joints and hardware from
debris. Duct tape should be used to cover these joints. Make sure all factory supplied thread
protectors and caps are in place. Recheck plumb and back fill approximately 2 feet with pea
gravel. Recheck plumb and continue back filling using pea gravel and rechecking plumb to within
18 inches of finished floor level. DO NOT use a mechanical tamper or saturate the fill to achieve
compaction, hand tamp only.
7. Check plumb and elevation, adjust if necessary. DO NOT remove 6 x 6 supports at this time.
Existing Floor / Block Out
8. If a Block Out is used or an Existing floor needs to be saw cut for excavation the Cut Out/Block
Out should be a minimum of 6' x 15' as per the figure below.
13' Min.
Nearest Obstruction
7' Min.
6' Min.
15' Min.
9. Pour concrete floor taking care not to run concrete in or on top of the lift / containment assembly.
NOTE: Concrete must be finished to edge of concrete tie (3/16” below top of concrete ties, see
Fig. 2). The floor should slope away from the lift for drainage. The floor slope should not exceed
1/16” per foot. 3500 psi concrete, steel reinforced per local commercial practice is required. The
new concrete must be mechanically joined to the existing floor with rebar.
10. After the concrete has set up remove the 6 x 6 supports, threaded rods, and shipping straps.
Replace the cover bolts with the ½-13 x 2” HFHB. The shipping strap bolt replacements are
supplied in the hardware box. Torque the bolts to 60 ft-lbs.
11. DO NOT use the lift until the concrete has fully cured to 3500 psi.

Models EW1020, EW1220
Installation, Operation and Maintenance
10 EW-IOM-A.doc Rev.2024/01/30
New Floor
12. Pour 8” to 12” of concrete around the top of the lift / containment assembly and install rebar to tie
in the finished floor as shown in Fig. 6.
6 x 6 Support
Lift / Containment
Assembly
1/2-13 x 18
All Thread Rod
1/2-13
Nut and Washer
8"-12"
Rebar
Fig. 6
13. After the concrete has set up remove the 6 x 6 supports, threaded rods, and shipping straps.
Replace the cover bolts with the ½-13 x 2” HFHB. The shipping strap bolt replacements are
supplied in the hardware box. Torque the bolts to 60 ft-lbs.
14. Pour concrete floor taking care not to run concrete in or on top of the lift / containment assembly.
The floor should slope away from the lift for drainage. The floor slope should not accede 1/16" per
foot.
15. DO NOT use the lift until the concrete has fully cured to 3500 psi.
16. Install the power unit mounting bracket or floor pedestal using the anchors provided. IMPORTANT:
The electric motor must be mounted at least 18 inches above the finished floor level as per National
Electric Code NFPA70. Assemble the power unit and lock release valve bracket to wall mounting
bracket or pedestal with 5/16-18 cap screws and nuts provided. Refer to Fig. 5.
17. Connect the power unit to an electrical source as shown in Fig. 7.

Models EW1020, EW1220
Installation, Operation and Maintenance
11 EW-IOM-A.doc Rev.2024/01/30
T9
T5
T4
T6
M
T8
T3
T7
T2
T1
12
34
56
FACTORY WIRED FOR
208−240V
6
4
2
5
3
1
RECONNECTIONS FOR
440−480V
T3
T2
T1
T9
T6
T7
T4
T8
T5
FOR THREE PHASE
M
1
5
4
6
(Normally Open)
M
FIELD
CONECTIONS
Wiring Diagram
FOR SINGLE PHASE
Fig. 7

Models EW1020, EW1220
Installation, Operation and Maintenance
12 EW-IOM-A.doc Rev.2024/01/30
18. Fill the reservoir with 12 quarts of 10 weight hydraulic / biodegradable oil or Dexron III ATF.
19. Remove the center cover plate from the lift / containment assembly to expose the hydraulic
connection. Attach the 37 deg. Union adapter (supplied) to the hard hydraulic line. Attach the 37
deg. Elbow adapter (supplied) to the power unit pressure port. Fish the hydraulic hose assembly
through the PVC chase starting at the power unit end.
20. The shop air supply must be clean, dry, lubricated, and regulated to 90-120 psi. The air
supply must run through a Filter/Regulator/Lubricator (FLR) within 30 feet of factory assembled
air valve. Failure to provide clean, dry lubricated and pressure regulated air will void
warranty on pneumatic components. Push ¼” airline through the PVC chase beginning at the
power unit. Connect the airline to the appropriate push lock fittings at each end. Refer to Fig. 8.
NOTE: DO NOT bypass factory supplied in-line filter.
Fig. 8
21. Finish Energize the power unit to run the cylinder up about 3 feet. Loosen the bleed screw at
the top of each cylinder and allow the trapped air to escape. Bleed both cylinders until clear
oil is seen. Refer to Fig. 9. Raise the lift to full stroke and continue to run the power unit for
another 10 seconds to check for hydraulic leaks.
Fig. 9
22. While the lift is in up position actuate the air valve and check for proper operation of the locking
mechanism.
23. Replace the center cover plate (see NOTE) and torque bolts to 60 ft-lbs.
NOTE: The cover plates are asymmetric and have a notch to indicate
installation. The cover plate notches should be positioned towards the
center of the lift.
3/8 Hose Barb (For Inlet Shop Air)
In-Line Air Filter
1/4" Push Lock Fitting

Models EW1020, EW1220
Installation, Operation and Maintenance
13 EW-IOM-A.doc Rev.2024/01/30
24. With the plungers raised slight (1”-2”) to avoid damaging the wiper. Position the bolster over the
pistons and attach using the 7/8-9x3 1/2 cap screws and lock washers provided and torque to
120 ft-lbs. Lightly grease each arm pin and hole with anti-seize and install the swing arms with
pins and snap rings.
25. Extend the foot pad to both extents and apply “anti-seize” to the three retaining rings and where
the double screw makes contact with the base of the foot pad.
26. With the lift lowered, arms extended fully and foot pad in the lowest position, check clearance of
the foot pad screw to ensure it does not make contact with the floor. Use the height adjustment
bolt shown in Fig. 10 to either raise or lower the bolster as necessary. If there is more than 3/8”
of clearance on both screws with the bolt fully seated against the bottom of the bolster remove
the bolt.
HEIGHT ADJUSTMENT BOLT
Fig. 10
27. Finish installation by cleaning around the top of the lift / containment unit and thoroughly seal
joints between the cover plate, bearing plates, and the perimeter with a premium silicone caulk.
FEMALE ARM SHIM INSTALL (3-STAGE ARMS ONLY)
28. Extend the arm fully and lift up on the male portion, Fig. 11.
29. Using a hammer to set, place the shim on the mouth of the female arm. Use the provide self-
locking set screw and 1/8” Allen head wrench to securely lock the shim in place.
Fig. 11 – Arm Shim, 3-Stage

Models EW1020, EW1220
Installation, Operation and Maintenance
14 EW-IOM-A.doc Rev.2024/01/30
Lifting a Vehicle
Be sure the adapters are in the lowered position and
the arms are parked as seen in Fig. 1 before
attempting to drive on or off of the lift. Failure to do
so may damage the adapters or vehicle.
Adjust the adapters laterally and fore and aft to
contact points of maximum stability in accordance
with the vehicle manufacturer’s recommended lifting
points.
Remember that positioning the adapters to yield
the widest and longest distances between points
of contact with the vehicle lifting points provides
the maximum stability.
Adapters may be used in lowered, intermediate or
raised height positions as necessary to clear mufflers,
pipes, brake lines etc. To obtain maximum stability
when adapters are used at maximum height position,
front and rear adapters should be rotated to oppose
each other.
To raise depress the run switch on the power unit and
hold until the vehicles tires just clear the floor. STOP
and check adapters for proper contact of vehicle
manufacturers recommended lifting points and
stability of the vehicle. Continue to raise the vehicle
to a few inches above the desired working height.
Lower the lift by depressing the lowering valve handle
until the lock is engaged. DO NOT go under vehicle
unless lock is engaged, and all four adapters are
securely contacting the vehicle manufacturers
recommended lifting points.
Lowering a Vehicle
To lower, raise lift slightly and disengage lock by
depressing lock release palm button. Continue to
hold lock release palm button and depress the
lowering valve handle until the lift is completely
lowered. Return adapters to their lowest position and
park the swing arms to provide unobstructed exit of
the vehicle.
Loss of Power
If for any reason the lift will not raise off the locks or
the locks will not retract, consult factory authorized
personnel.
DO NOT OVERRIDE ANY SAFETY FEATURE IN AN
ATTEMPT TO LOWER THE LIFT.
Trouble Shooting
If any problems are encountered, please contact
your local Challenger Representative.
OWNER/OPERATOR CHECKLIST
30. Demonstrate the operation of the lift to the
owner/operator and review correct and safe
lifting procedures using the Lifting It Right
booklet as a guide.
31. Return all provided literature (including this
manual) to the literature pack envelope and
deliver the envelope to the
owner/operator/employer
32. Complete the online warranty registration
(refer to the included warranty statement).

Models EW1020, EW1220
Installation, Operation and Maintenance
15 EW-IOM-A.doc Rev.2024/01/30
OPERATION PROCEDURE
SAFETY NOTICES AND DECALS
This product is furnished with graphic safety
warning labels, which are reproduced on page 3
of these instructions. Do not remove or deface
these warning labels or allow them to be removed
or defaced. For your safety, and the safety of
others, read and understand all of the safety
notices and decals included.
OWNER/EMPLOYER RESPONSIBILITIES
This lift has been designed and constructed
according to ANSI/ALI ALCTV standard. The
standard applies to lift manufacturers, as well as to
owners and employers. The owner/employer’s
responsibilities as prescribed by ANSI/ALI ALOIM,
are summarized below. For exact wording refer to the
actual standard provided with this manual in the
literature pack.
The Owner/Employer shall ensure that lift operators
are qualified and that they are trained in the safe use
and operation of the lift using the manufacturer’s
operating instructions; ALI/SM, ALI Lifting it Right
safety manual; ALI/ST, ALI Safety Tips card;
ANSI/ALI ALOIM, American National Standard for
Automotive Lifts-Safety Requirements for Operation,
Inspection and Maintenance; ALI/WL Series, ALI
Uniform Warning Label Decals/Placards; and in case
of frame engaging lifts, ALI/LP-GUIDE, Vehicle Lifting
Points/Quick Reference Guide for Frame Engaging
Lifts.
The Owner/Employer shall establish procedures to
periodically inspect the lift in accordance with the lift
manufacturer’s instructions or ANSI/ALI ALOIM,
American National Standard for Automotive Lifts-
Safety Requirements for Operation, Inspection and
Maintenance; and the employer shall ensure that the
lift inspectors are qualified and that they are
adequately trained in the inspection of the lift.
The Owner/Employer shall establish procedures to
periodically maintain the lift in accordance with the lift
manufacturer’s instructions or ANSI/ALI ALOIM,
American National Standard for Automotive Lifts-
Safety Requirements for Operation, Inspection and
Maintenance; and the employer shall ensure that the
lift maintenance personnel are qualified and that they
are adequately trained in the maintenance of the lift.
The Owner/Employer shall maintain the periodic
inspection and maintenance records recommended
by the manufacturer or ANSI/ALI ALOIM, American
National Standard for Automotive Lifts-Safety
Requirements for Operation, Inspection and
Maintenance.
The Owner/Employer shall display the lift
manufacturer’s operating instructions; ALI/SM, ALI
Lifting it Right safety manual; ALI/ST, ALI Safety
Tips card; ANSI/ALI ALOIM, American National
Standard for Automotive Lifts-Safety Requirements
for Operation, Inspection and Maintenance; and in the
case of frame engaging lift, ALI/LP-GUIDE,
Vehicle Lifting Points/Quick Reference Guide for
Frame Engaging Lifts; in a conspicuous location in
the lift area convenient to the operator.
IMPORTANT SAFETY INSTRUCTIONS
When using your garage equipment, basic safety
precautions should always be followed, including
the following:
1. Read all instructions.
2. Care must be taken as burns can occur from
touching hot parts.
3. To reduce the risk of fire, do not operate
equipment in the vicinity of open containers
of flammable liquids (gasoline).
4. Keep hair, loose clothing, fingers, and all
parts of body away from moving parts.
5. Use only as described in this manual. Use
only manufacturer’s recommended
attachments.
6. ALWAYS WEAR SAFETY GLASSES.
Everyday eyeglasses only have impact
resistant lenses, they are not safety glasses.
SAVE THESE INSTRUCTIONS

Models EW1020, EW1220
Installation, Operation and Maintenance
16 EW-IOM-A.doc Rev.2024/01/30
Maintenance
To avoid personal injury, permit only qualified personnel to perform maintenance on this equipment. Maintenance
personnel should follow lockout/tagout instructions per ANSI Z244.1.
The following maintenance points are suggested as the basis of a routine maintenance program. The actual maintenance
program should be tailored to the installation and include a record of each planned maintenance activity and repair
maintenance activity performed. Refer to the maintenance section of the ANSI/ALI ALOIM booklet (blue book) provided
with the lift.
If lift stops short of full rise or chatters, check fluid level and bleed both cylinders per Installation Instructions.
Replace all Safety, Warning or Caution Labels if missing or damaged (See Installation instructions page 3.)
Daily
Drain water from air supply to avoid contamination of lock release components.
Check lock operation. The lock operation should be heard as lift is raised.
Inspect lifting adapters for damage.
Keep area around lift / containment assembly clean and free of dirt, sand, water, etc. to prevent scoring of the
plunger.
Remove excess grease and debris from plunger by wiping them down with a clean cloth.
Monthly
Check fluid level in the power unit.
Check for proper torque on all superstructure bolts (120 ft-lbs.).
Clean and lubricate lifting arm pins and pads.
Quarterly
Grease Lift Guide bearings using Mobil, Mobilith SHC 1500 synthetic grease. Each guide bearing is supplied with
two grease zerks and should take 10-12 pumps (hand pump only) while raising and lowering the lift empty.
Grease Fitting
Locations
Grease Fitting Locations

Models EW1020, EW1220
Installation, Operation and Maintenance
17 EW-IOM-A.doc Rev.2024/01/30
Parts Break Down
Model EW1020
Model EW1020-QC
Model EW1220
Model EW1220-QC
EW1020
EW1220
IMPORTANT
Replace all worn, damaged, or broken parts with parts approved by Challenger Lifts Inc.
or with parts meeting Challenger Lifts Inc. specifications.
Contact your local Challenger Lifts Parts Distributor for pricing and availability.
(Call Challenger Lifts Inc. [phone] for the Parts Distributor in your area)

Models EW1020, EW1220
Installation, Operation and Maintenance
18 EW-IOM-A.doc Rev.2024/01/30
EW1020 SUPER STRUCTURE
B17550SRA
B17550SLA

Models EW1020, EW1220
Installation, Operation and Maintenance
19 EW-IOM-A.doc Rev.2024/01/30
EW1020 SUPER STRUCTURE
Item Part Qt
y
. / Lift Description
1 B2270 4
Foot Pad Assembl
y
(
items 1
A
-1F
)
1
A
A
1104-H 4
Rubber Insert
1B
A
1101-1H 4
Foot Pad Weld
1C B17256 4
2 x 30mm Retainin
g
Rin
g
1D B17257 8
3 x 45mm Retainin
g
Rin
g
1E B2261 4
Threaded Sleeve
1F B17276-1 4
Threaded inser
t
2 B2211 4
Roll Pin, 6mm DIA x 30mm L
g
.
7 B2218C 4 Male Arm Weld
8 B2202-02 4
Roll Pin, Ø12mm x 80mm L
g
.
9 CS1020010200C 4
Intermediate Arm Weld Left
10 B17551 2 Female Arm Weld Left
B17555 Female Arm Weld Ri
g
h
t
11 B17574 4
A
rm Pin Collar
12 B17567 4
A
rm Pin
13 17531 2
Bolster
14 B17550SL
A
2 3-Sta
g
e Arm Assembl
y
Left
B17550SR
A
3-Sta
g
e Arm Assembl
y
Ri
g
ht
15 17598-5 12
7/8-9 x 5” Hex Head Cap Screw
16 16160 2
Finishin
g
Plu
g
17 16154 12
7/8 External Tooth Lock Washer
18 16157 4
½-13 x 1” HHCS
19 B2202-01 4
Roll Pin, 12mm Dia x 60mm L
g
.
20 17425 4
Female Arm Shim, 3-Sta
g
e
21 17426 4
1/4-20 x 1/4” L
g
. Self Lock Set Screw
22 CS1020-04 4
Stop Block
23 17350 8
8mm x 10mm L
g
. Flat Head Bolt
24 CS1020-05 4
Stop Loop
25 17594 4
Inner Arm Restraint Gear
26 X10-022 12
M10 Lock Washer
27 X10-021 12
M10 x 20mm SHCS
28 CS1020-03-02 4
M6 x 6mm Set Screw
29 17592 8
UHMW Washer
30 17595 4
Outer Restraint Gear
31 17597 4
#8-32 x ¾” SHCS
32 17596 4
Sprin
g
33 17575 4
A
rm Restraint Pin
34
A
1075 4
Rin
g
Replace all worn, damaged, or broken parts with parts approved by Challenger Lifts Inc. or with parts meeting
Challenger Lifts Inc. specifications. Contact your local Challenger Lifts Parts Distributor for pricing and availability.
(Call Challenger Lifts Inc. [phone] for the Parts Distributor in your area)

Models EW1020, EW1220
Installation, Operation and Maintenance
20 EW-IOM-A.doc Rev.2024/01/30
EW1220 SUPER STRUCTURE
ADAPTERS
B17560SLA Left Arm Assy.
B17560SRA Right Arm Assy.