Page 1
SPX Corporation
655 Eisenhower Drive
Owatonna, MN 55060-0995 USA
Phone: (507) 455-7000
Tech. Serv.: (800) 533-6127
Fax: (800) 955-8329
Order Entry: (800) 533-6127
Fax: (800) 283-8665
International Sales: (507) 455-7223
Fax: (507) 455-7063
Service Jack
Max. Capacity: 2 Tons
Application: Designed to lift a wide range of motor vehicles.
This parts list covers OTC No. 1727 Service Jacks
stamped with a date code of 109286 and later. (The
date code can be found on a silver plaque located
inside the frame rail above the pump.) This date
code indicates the model of your jack.
When you receive a repair parts kit, parts for all
models will be included. Use only the parts for your
jack; discard the other parts.
Saddle Low Point: 33/4 in.
Saddle High Point: 221/2 in.
3
/4 in.
5
(parts list
on back
of this sheet)
6
21
Lifting Range: 18
Handle Length: 48 in.
1
2
3, 4
Form No. 107191
Parts List and
Operating Instructions
for: 1727
Item Part
No. No. Qty. Description
1 501238 1 Handle Ass'y
2 12368 1 Hex Hd. Cap Screw
3 509167 1 U-joint
4 10549 1 Roll Pin
5 501294 1 Hydraulic Ass'y
6 502032 1 Decal
7 501237 1 Saddle
8 217176 1 Cotter Pin
9 501800 2 Front Wheel
10 15953 2 Washer
11 14855 6 Retaining Ring
12 501814 2 Anchor Pin
13 513781 2 Spring
14 501394 1 Rod
15 501803 2 Spacer Bushing
16 501288 2 Caster
17 10252 2 Lockwasher
18 10397 2 Hex Nut
19 501818 4 Spacer
20 501805 4 Bolt
21 501817 1 Grease Fitting
7
22 501401 1 Load Block
23 10236 2 Washer
Parts Included but not Shown
501234 1 Pump Roller
516675 1 Groove Pin
(5/8-11 x 1")
(not shown)
(see back)
(1/8-2")
(3/4")
(3/4")
(3/4")
(3/4")
(not shown)
(3/8-16)
19, 20
l
ll
ll
17, 18
23
16
14, 15, 11
12, 13
© SPX Corporation
10, 11
8
22, 11
Sheet No.
1 of 2
9
Issue Date: Rev. F (9-18-03)
Page 2
Parts List & Operating Instructions Form No. 107191, Back of Sheet 1 of 2
Verify yours
21
20
19
18
Note: Previous part nos.
509131 & 509132 have
been replaced by Item
18 (516432).
17
16
Shaded areas reflect the last revisions
1
2
15
14
made to this document.
No. 501294 Hydraulic Assembly
Item Part
No. No. Qty. Description
1 512958 1 Rod Assembly
(includes items 5, 6, & 18)
j
2
3
4
5
6
7
9, 10
11
12
13
3
4
5
6
7
9
10
11
12
13 501354 1 Pump Rod
14
15 501355 1 Pump Tube
16
17 221281 1 Check Valve
18
19
20
21 501300 1 Gland
Parts marked with an asterisk (
Seal Kit No. 501816.
Parts marked with a triangle (s) are included in
Pump Release Valve Repair Kit No. 501235.
Parts marked with a dagger (=) are included with
Item No. 1 – Piston Rod Assembly No. 512958.
When you receive a repair parts kit, parts for all
models will be included. Use only the parts for your
jack; discard the other parts.
501351 1 Retaining Ring
j
501299 1 Retaining Wire
j
10913 1 O-ring
=j
201433 1 Retaining Ring
=j
509133 1 U-Cup Seal
j
221278 1 Plug
s
j
501804 1 Ball Seat Screw
(torque to 130 in.•lbs.)
s
j
12223 1 Ball
s
j
10268 1 O-ring
s
j
508931 1 Relief Screw
j
501397 1 U-cup
(torque to 75 ft.•lbs.)
j
501400 1 Crush Washer
=j
516432 1 Brass Backup Ring
j
501298 1 Wear Ring
j
14739 1 O-ring
j
) are included in
Bleeding Air from the System
Air can accumulate within a hydraulic system during shipment, or if the oil supply runs too low. This entrapped air causes
the jack to respond slowly or feel “spongy.” The following procedure bleeds air from the system.
1. Remove the jack from service, and place it on a level surface.
2. Open the release valve by turning the handle all the way counterclockwise (CCW).
3. Pump the handle six full strokes.
4. Close the release valve by turning the handle all the way clockwise (CW).
5. Pump the handle until the lift arm is fully extended.
6. Lower the lift arm by turning the handle all the way counterclockwise (CCW).
7. Test the jack for normal operation. If the lift pad doesn’t rise to the correct height, repeat Steps 2-6. If this doesn’t solve
the problem, call the OTC Technical Services Dept. at (800) 533-6127.
Page 3
Parts List & Operating Instructions Form No. 107191
Safety Precautions
CAUTION: To prevent personal injury and damage to equipment,
Read, understand, and follow all instructions, including ASME PALD Part 10 for service jacks.
•
If the operator cannot read English, operating instructions and safety precautions must be
read and discussed in the operator’s native language.
–
Si el operador no puede leer inglés, las instrucciones de operación y las precauciones de
seguridad deberán leerse y comentarse en el idioma nativo del operador.
– Si l’utilisateur ne peut lire l’anglais, les instructions et les consignes de sécurité doivent lui
être expliquées dans sa langue maternelle.
Before using the service jack to lift a vehicle, refer to the vehicle service manual to determine
•
recommended lifting surfaces on the vehicle chassis.
Wear eye protection that meets ANSI Z87.1 and OSHA standards.
•
Inspect the jack before each use; do not use the jack if it’s damaged, altered, or in poor
•
condition. Take corrective action if any of the following conditions are found: cracked or
damaged housing; excessive wear, bending, or other damage; leaking hydraulic fluid;
scored or damaged piston rod; loose hardware; modified or altered equipment.
A load must never exceed the rated lifting capacity of the jack.
•
Use the jack on a hard, level surface. The jack must be free to roll without any obstructions
•
while lifting or lowering the vehicle. The wheels of the vehicle must be in the straight-ahead
position, and the hand brake released.
Use the jack for lifting purposes only. Stay clear of a lifted load. Place support stands under
•
the axles before working on the vehicle.
Center the load on the jack saddle. Off-center loads can damage seals and cause jack failure. Lift only dead
•
weight.
Do not use blocks or other extenders between the saddle and the load being lifted.
•
Do not modify the jack or use adapters unless approved or supplied by OTC.
•
Lower the jack slowly and carefully while watching the position of the jack saddle.
•
Use only automatic transmission fluid. The use of alcohol, hydraulic brake fluid, or transmission oil could
•
damage seals and result in jack failure.
This guide cannot cover every situation, so always do the job with safety first.
Setup
1. Loosen the thumb screw on the front of the handle socket.
2. Grease the socket opening. Insert the handle.
3. Torque the thumb screw to 150–200 in. lbs.
Operation
1. Close the release valve by turning the handle clockwise (CW) as far as it will go.
2. Position the jack under the vehicle. IMPORTANT: Use the manufacturer’s recommended lifting points on the chassis.
3. Pump the jack handle to raise the saddle to the contact point.
4. Check the placement of the jack; the load must be centered on the jack saddle. IMPORTANT: Avoid wheel obstructions
such as gravel, tools, or uneven expansion joints.
5. Finish lifting the vehicle by pumping the handle. Do not attempt to raise the jack beyond its travel stops.
6. Place approved support stands under the vehicle at points that will provide stable support. Before making repairs on
the vehicle, lower it onto the support stands by SLOWLY and CAREFULLY turning the handle counterclockwise (CCW).
© SPX Corporation
Operating Instructions
Sheet No.
Issue Date: Rev. F (9-18-03)
2 of 2
Page 4
Parts List & Operating Instructions Form No. 107191, Back of Sheet 2 of 2
Preventive Maintenance
IMPORTANT: The greatest single cause of failure in hydraulic units is dirt. Keep the service jack clean and well
lubricated to prevent foreign matter from entering the system. If the jack has been exposed to rain, snow, sand, or grit, it
must be cleaned before it is used.
1. Store the jack in a well-protected area where it will not be exposed to corrosive vapors, abrasive dust, or any other
harmful elements.
2. Regularly lubricate the moving parts in the wheels, arm, and handle.
3. Replace the oil in the reservoir at least once per year. To check the oil level, lower the lift arm completely. Remove the
rubber filler plug. Oil level should be at the bottom of the filler plug hole. If necessary, add automatic transmission fluid,
and install the filler plug. IMPORTANT: The use of alcohol, hydraulic brake fluid could damage the seals and result
in jack failure.
4. Inspect the jack before each use. Take corrective action if any of the following problems are found:
a. cracked, damaged housing c. leaking hydraulic fluid e. loose hardware
b. excessive wear, bending, other damage d. scored, damaged piston rod f. modified equipment
5. Keep warning labels and instructional decals clean and readable. Use a mild soap solution to wash external surfaces
of the jack.
Troubleshooting Guide
Repair procedures must be performed in a dirt-free environment by qualified personnel who are familiar with this
equipment. CAUTION: Inspection, maintenance, and repair procedures must be performed when the jack is free
of a load (not in use).
Trouble Cause Solution
Jack does not lift
Jack lifts only partially
Jack advances slowly
Jack lifts load, but doesn’t hold
Jack leaks oil
1. Release valve is open.
2. Low/no oil in reservoir.
3. Air-locked system.
4. Load is above capacity of jack.
5. Delivery valve and/or bypass valve not
working correctly.
6. Packing worn out or defective.
1. Too much or not enough oil.
1. Pump not working correctly.
2. Leaking seals.
1. Cylinder packing is leaking.
2. Valve not working correctly (suction,
delivery, release, or bypass).
3. Air-locked system.
1. Worn or damaged seals.
1. Close release valve.
2. Fill with automatic transmission fluid and
bleed system.
3. Bleed system.
4. Use correct equipment.
5. Clean to remove dirt or foreign matter.
Replace oil.
6. Replace packing.
1. Check oil level.
1. Rework pump.
2. Replace seals. (Seal kit No. 501816 is
available from OTC.)
1. Replace packing.
2. Inspect valves. Clean and repair seat
surfaces.
3. Bleed system.
1. Replace seals.
Jack will not retract
Jack retracts slowly
1. Release valve is closed.
1. Cylinder damaged internally.
2. Return spring is damaged.
3. Link section is binding.
1. Open release valve all the way
counterclockwise (CCW). May be
necessary to clean release valve.
1. Send jack to OTC-authorized service
center. (Refer to OTC Form No. 104031.)
2. Replace return spring.
3. Lubricate or replace link section.
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