Sunex HD 7752C User manual

7752C Rev. D 1 rev. 01/23/15
OWNER'S MANUAL
MODEL 7752C (Rev. D)
CAPACITY: 1-1/2 TON
TRANSMISSION JACK
CONTENTS:
Page 1 Specifications
2 Warning Information
3 Setup, Operating and Maintenance
4 Trouble Shooting and Warranty Information
5 Exploded View Drawing
6 Replacement Parts
© Copyright 2015, Sunex Tools®
SPECIFICATIONS
Capacity.....................................................................1-1/2 Ton
Low Height..........................................................................8.7"
Raised Height .................................................................36.62"
Length...............................................................................43.5"
Overall Width ..................................................................25.75"
Saddle Tilt Fore and Aft.......................................... 10° by 10°
Saddle Tilt Side to Side ...........................................+10°, -10°
Shipping Weight .......................................................... 337 lbs.

7752C Rev. D 2 rev. 01/23/15
WARNINg INFORMATION
This is the safety alert symbol. It is used to alert you
to potential personal injury hazards. Obey all safety
messages that follow this symbol to avoid possible
injury or death.
IMPORTANT: READ THESE INSTRUCTIONS BEFORE OPERATING
BEFORE USING THIS DEVICE, READ THIS MANUAL COMPLETELY AND THOROUGHLY, UNDERSTAND ITS OPERATING
PROCEDURES, SAFETY WARNINGS AND MAINTENANCE REQUIREMENTS.
It is the responsibility of the owner to make sure all personnel read this manual prior to using the device. It is also the responsibility of
the device owner to keep this manual intact and in a convenient location for all to see and read. If the manual or product labels are lost
or not legible, contact Sunex for replacements. If the operator is not fluent in English, the product and safety instructions shall be read to
and discussed with the operator in the operator's native language by the purchaser/owner or his designee, making sure that the operator
comprehends its contents.
THE NATURE OF HAZARDOUS SITUATIONS
The use of portable automotive lifting devices is subject to certain hazards that cannot be prevented by mechanical means, but only
by the exercise of intelligence, care, and common sense. It is therefore essential to have owners and personnel involved in the use and
operation of the equipment who are careful, competent, trained, and qualified in the safe operation of the equipment and its proper use.
Examples of hazards are dropping, tipping or slipping of loads caused primarily by improperly secured loads, overloading, off-centered
loads, use on other than hard level surfaces, and using equipment for a purpose for which it was not designed.
METHODS TO AVOID HAZARDOUS SITUATIONS
• Read,study,understandandfollowallinstructionsbeforeoperatingthisdevice.
• Inspectbeforeeachuse.Donotusejackifdamaged,altered,modied,inpoorcondition,orhaslooseormissinghadwareor
components. Take corrective action before using the jack.
• Consultthevehiclemanufacturerforthetransmission'scenterofbalance.
• Securethetransmissiontothejack'ssaddlewiththeanchoragerestraintsystemprovidedbeforeraisingorlowering
the transmission.
• Centerloadonsaddle.Besuresetupisstablebeforeworkingonvehicle.
• Supporttheenginewithastandbeforeunboltingthetransmissionfromtheengine.
• Donotusejackbeyonditsratedcapacity.Donotshockload.
• Useonlyonahardlevelsurface.
• Adequatelysupportthevehiclebeforestartingrepairs.
• Useofthisproductislimitedtotheremoval,installationandtransportationintheloweredposition,oftransmissions,
transfer cases and transaxles.
• WeareyeprotectionthatmeetsANSIZ87.1andOSHAstandards(users&bystanders).
• Donotliftorsupportthevehiclewiththisjack.
• DonotuseanyadaptersunlessapprovedorsuppliedbySunex®Tools.
• Alwayslowerthejackslowlyandcarefully.
• Donotuse(ormodify)thisproductforanyotherpurposethanthatforwhichitwasdesignedwithoutconsultingthemanufacturer's
authorized representative.
• ThisproductmaycontainoneormorechemicalsknowntotheStateofCaliforniatocausecancerandbirthdefectsorother
reproductive harm. Wash hands thoroughly after handling.
• Failuretoheedthesewarningsmayresultinseriousorfatalpersonalinjuryand/orpropertydamage.
CONSEQUENCES OF NOT AVOIDING HAZARDOUS SITUATIONS
Failure to read this manual completely and thoroughly, failure to understand its OPERATING INSTRUCTIONS, SAFETY WARNINGS,
MAINTENANCEINSTRUCTIONSandcomplywiththem,andfailuretocomplywiththeMETHODSTOAVOIDHAZARDOUSSITUATIONS
could cause accidents resulting in serious or fatal personal injury and/or property damage.
WARNING: Indicates a hazardous situation
which, if not avoided, could result in death
or serious injury.
WARNING
WARNING
WARNING
WARNING

7752C Rev. D 3 rev. 01/23/15
SETUP
PLEASE REFER TO THE EXPLODED VIEW DRAWING IN THIS MANUAL IN ORDER TO IDENTIFY PARTS.
1. Refer to the exploded view drawing on page 5 to identify jack components.
2. The #3-7 and 3-13 brackets must be installed on the #3-8 saddle plate with the #3-6 bolts, #3-9 washers and #3-10 wing nuts as shown in
the exploded view drawing.
3. The #3-4 chains must be attached to the #3-7 brackets as shown in the exploded view drawing and secured to the brackets with
the #3-1 bolts, #3-2 washers, #3-3 lock washers and #3-5 nuts provided.
4. Assemble the #3-16 chain hooks to the #3-15 adaptor bolts with the #3-14 wing nuts as shown in the drawing.
5. Secure the #3-15 adaptor bolts to the two remaining #3-13 brackets using the #3-12 washers and #3-11 nuts.
6. Air may get trapped in the hydraulic system during freight and handling.
PURGING AIR FROM THE HYDRAULIC SYSTEM:
a. Rotate the release knob at the top of the hydraulic block in a clockwise direction until tight.
Now turn it in a counterclockwise direction two full turns.
b. Activate the hand pump #1-45 about 15 times.
c. Rotate the release knob at the top of the hydraulic block in a clockwise direction until tight.
d. Activate the hand pump until the lift arm is raised to maximum height. You should experience a full pump stroke with each
incremental pump.
e. Repeat steps "a" through "d" until all air is purged from the system.
OPERATING INSTRUCTIONS
This is the safety alert symbol used for the OPERATING INSTRUCTIONS section of this manual to alert you to potential personal
injury hazards. Obey all instructions to avoid possible injury or death.
1. Lift the vehicle to the desired work height, and support the vehicle in accordance with the lift manufacturer's recommended
lifting and support procedures.
2. Position the transmission jack directly under the transmission. Turn the release valve knob all the way in a clockwise direction until
it stops. Pump the handle, and the saddle assembly will start to rise. Raise the saddle to a height very close to the center of
balance point of the transmission, but do not touch the transmission.
3. Loosen the four bolts that secure the four brackets to the saddle. The brackets can be adjusted in and out to help position the
transmission on the saddle. Now gently raise the saddle so it supports the transmission. Adjust the four brackets in position
against the transmission, and tighten the wing nuts that secure the brackets to the saddle. Fore and aft saddle tilt adjustments are
sometimes necessary to properly position the transmission on the saddle. Side to side tilt positioning may be necessary for the
same reason and can be accomplished by activating the side to side tilt knob.
4. The chains should be pulled over the center of balance portion of the transmission and secured on the chain hooks. Rotate the
#3-10 wing nuts to take up the slack in the chain and secure the transmission to the saddle.
5. Remove the transmission from the engine according to instructions in the vehicle service manual.
6. Once the transmission has been disconnected from the engine, very slowly turn the jack's release knob in a counterclockwise
direction to make sure the jack's saddle and transmission do not hang up on any undertruck components, wiring, fuel lines, etc.
Continue to lower the jack all the way down.
7. Remember to secure the transmission to the saddle before installing, and follow the vehicle manufacturer's installation instructions.
PREVENTATIVE MAINTENANCE
This is the safety alert symbol used for the PREVENTATIVE MAINTENANCE section of this manual to alert you to potential personal
injury hazards. Obey all instructions to avoid possible injury or death.
1. Always store the jack in a well protected area where it will not be exposed to inclement weather, corrosive vapors, abrasive dust, or any
other harmful elements. The jack must be cleaned of water, snow, sand, grit, oil, grease or other foreign matter before using .
2. The jack must be lubricated periodically in order to prevent premature wearing of parts. A general purpose grease must be applied to all
zerk grease fittings, caster wheels, elevator arm, handle base pivot bolts, release mechanism and all other bearing surfaces.
IMPORTANT: any jack found to be defective as a result of worn parts due to insufficient or lack of lubrication is not eligible
for warranty consideration.
MODEL 7752C (Rev. D)
CAPACITY: 1-1/2 TON
TRANSMISSION JACK

7752C Rev. D 4 rev. 01/23/15
PREVENTATIVE MAINTENANCE (CONT.)
3. It should not be necessary to refill or top off the reservoir with hydraulic fluid unless there is an external leak. An external leak
requires immediate repair which must be performed in a dirt-free environment by qualified hydraulic repair personnel who are
familiar with this equipment.
IMPORTANT: In order to prevent seal damage and jack failure, never use alcohol, hydraulic brake fluid or transmission oil in the jack.
Use Chevron Hydraulic Oil AW ISO 32 or its equivalent Unocal Unax AW150.
4. Every jack owner is responsible for keeping the jack labels clean and readable. Use a mild soap solution to wash external surfaces of the
jack but not any moving hydraulic components. Contact Sunex for a replacement label if your jack's label is unreadable.
5. Inspect the jack before each use. Do not use the jack if any component is cracked, broken, bent, shows sign of damage or leaks
hydraulic fluid. Do not use the jack if it has loose or missing hardware or components, or is modified in any way. Take corrective action
before using the jack again.
6. Do not attempt to make any hydraulic repairs unless you are a qualified hydraulic repair person that is familiar with this
equipment. Repairs must be performed by an authorized service center.
TROUBLESHOOTING
PROBLEM ACTION
1. Unit will not lift rated load. Purge air from hydraulic system by following procedure under SETUP.
2. Unit will not sustain rated load or feels “spongy” under rated load. Purge air from hydraulic system as above.
3. Unit will not lift to full height. Purge air from hydraulic system as above.
4. Handle tends to raise up while the unit is under rated load. Pump the handle rapidly several times to push oil past ball
valves in power unit.
5. Unit still does not operate. Contact Sunex authorized hydraulic service center.
OWNER'S MANUAL

7752C Rev. D 5 rev. 01/23/15
MODEL 7752C (Rev. D)
CAPACITY: 1-1/2 TON
TRANSMISSION JACK
PARTS DRAWINg
1-0
RS7752DHU
Complete
HyDRaUliC
Unit

7752C Rev. D 6
PARTS LIST
MODEL 7752C (Rev. D)
CAPACITY: 1-1/2 TON
TRANSMISSION JACK
1 RS7752D01 Wheel Assembly/each (incl. #1,2,3) 4
2 Washer 6
3 Nut 6
4 Frame Board Assy. 1
5 Bolt 2
6Shaft 1
7 Washer 1
8 Rod Link 2
9 Washer 2
10 Saddle Seat 1
11 Shaft 1
12 Washer 4
13 Bracket 1
14 Nut 2
15 Shaft 1
16 Pin 2
17 ** Bolt 9
18 Handwheel 2
19 RS7752D19 Adjustment Rod Assembly/each (incl. #16-19) 2
20 ** Nut 3
21 RS7752D21 Shaft 1
22 RS7752D22 Retaining Ring/each 6
23 ** Nut 2
24 ** Bearing 4
25 ** Nut 2
26 RS7752D26 3" Shaft 1
27 RS7752D27 5.5" Shaft 1
28 Grease Fitting 1
29 Lift Arm Assembly 1
30 Pin 2
31 Shaft 2
32 Rod Link 2
33 Washer 2
34 Rod Link 1
35 Pin 1
1-0 RS7752DHU Complete Hydraulic Unit 1
1-1 Washer 1
1-2 Washer 2
1-3 * O-ring 1
1-4 Piston Rod 1
1-5 Piston ring 1
1-6 * Sealing washer 1
1-7 * O-ring 1
1-8 Washer 1
1-9 Washer 1
1-10 Body 1
1-11 * Oil filler plug 1
1-12 Washer 2
1-13 Bolt 2
1-14 Bolt 1
1-15 * Copper washer 1
1-16 Valve 1
1-17 * Steel ball 6 2
1-18 * O-ring 2
1-19 RS7752D119
Release Valve Assembly (incl. 1-19 to 1-21) 1
1-20 Pin 1
1-21 Release Knob 1
1-22 Screw 1
1-23 * Steel ball 4 1
1-24 Ball seat 1
1-25 * Spring 1
1-26 Screw 1
1-27 Sealing washer 1
1-28 Screw 1
1-29 * Spring 1
1-30 * Steel ball 9 1
1-31 * Spring 1
1-32 * Copper washer 1
1-33 Screw 1
1-34 * Copper washer 1
1-35 Washer 3
1-36 Bracket 1
1-37 Pin 1
1-38 * Y-ring 1
1-39 * O-ring 1
1-40 Cylinder Pump 1
1-41 Pump cylinder 1
1-42 * Dustproof plug 1
1-43 Washer 2
1-44 Pin 2
1-45 Handle 1
1-46 Handle Sleeve 1
3-1 *** Bolt 2
3-2 *** Washer 2
3-3 *** Lock Washer 2
3-4 RS7752D34 Chain/each 2
3-5 *** Nut 2
3-6 *** Bolt 4
3-7 RS7752D37 Bracket/each 2
3-8 Saddle Plate 1
3-9 *** Washer 4
3-10 *** Wing Nut 4
3-11 *** Nut 2
3-12 *** Washer 2
3-13 RS7752D313 Bracket/each 2
3-14 *** Wing Nut 2
3-15 *** Adapter Bolt 2
3-16 *** Chain Hook 2
3-17 Bolt 2
3-18 Board 1
RS7752DLK Product Label Kit (not shown) 1
*Available in seal kit, RS7752DSK
** Available in saddle bearing kit, RS7752DSBK (incl. #17 (7), #20 (3), #23 (2),
#24 (4), #25 (2).
*** Available in bolt kit, RS7752DBK
Only index numbers identified by part number are available separately.
Index Part
No. No. Description Qty.
Index Part
No. No. Description Qty.
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