TSI Instruments Back Buddy II 350B User manual

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Tire Service International, LLC
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Phoenix, AZ 85040
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Email: [email protected]
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350B
Back Buddy II™
Revised: May 2022

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1. Read and follow instructions for optimum use
2. Steel toe shoes, safety glasses and gloves are recommended
3. Be sure handle locks are secure before moving load.
4. Keep the handle and knobs free of grease.
5. Be sure to stay below the lift capacity of 350 lbs.
Safety Requirements
General Information
1. The 350B Back Buddy II™ is designed to reduce fatigue and injury during brake and bearing
seal maintenance on vehicles. Lift capacity is 350 lbs.
2. 48” tall x 27” wide and 27 1 /2” deep. Freestanding weight just over 100 lbs and is very easy to
handle and maneuver.
3. The 350B Back Buddy II™ can handle all hub and drum assemblies with the universal receiver
and adapter sets. With a simple change of adapters users of the Back Buddy II™ can change from
an inboard hub/drum lifting device to an outboard drum or spoke lifting device in seconds.
4. Changing adapters is as easy as pulling the knob of the spring loaded lock/locking pin,
removing the existing adapter and replace it with another adapter.
Angle Adjustment Knob
Adapter
Ratchet/Lift Handle

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Set-Up Instructions
1. Figure 2 above shows a Back Buddy II™ with a handle nearly installed.
2. The inset at top right indicates where to match "A" for proper assembly. Line up the handle
and align the locking tabs. The handle "locking tabs" go on the inside of the main frame tabs.
You may want to temporarily fasten these together using the handle lock pin.
3. Line up the hinge halves and insert hinge pin and cotter pins.
4. Prior to shipping each Back Buddy II™ unit has been fully assembled. It may be necessary to
gently tap the hinge pin into place. DO NOT BEND IT.

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Operating Instruction
1. Roll the Back Buddy II™ up to the hub.
2. Select the correct adapter and fasten it
into position ( See Fig. 3 and 4). Insert the
adapter with the grooves on the adapter
facing away from unit.
3. Align the Back Buddy II™ to the hub. Turn
the angle adjust knob. (Fig. 2) in or out.
4. Make sure the pin locks the adapter in the
receiver.
5. Below are two standard adapters sent with
each Back Buddy II™ unit.
MKA2/2H - TSI #6069
10 stud inboard hubs. Studs 335 mm on center.
MKA3/3HD - TSI #6073
10 stud outboard hubs. Studs 11.25" on
center, 3/4" hub back plate thickness.
6. Figure 4 shows an operator has
fastened the Back Buddy II™ to a hub.
7.
8. The arrows point to the lift ratchet and
the angle adjustment knob. Use both to
align the unit to your vehicle hub.

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Operating Instruction
9. Ensure ratchet handle is stowed before
laying it down on its back.
10. Tip the Back Buddy II™ back to service
brake drum.
11. The pull handles in back are angled to
rest the unit on its back without crushing or
pinching your ngers as you use the upper
hand to pivot it with. See Fig. 6
Tip it foward to service the
hub as shown.

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Repair Parts List
TSl#6069 - MKA2/2HD
Interchangeable left or right. Adapters connect directly to studs, 10 stud inboard hubs.
Studs 335 mm on center.
TSI #6073 - MKA3/3HD
One right and one left. Adapters connect directly to brake drum, 10 stud outboard hubs.
Studs 11.25" on center, 3/4" hub back plate thickness.
TSI #6071 - MKA4
One right and one left. Adapters connect directly to stud on a 5 spoke hub and drum.
Same adapters are inverted for use on a 6 spoke hub and drum.
TSI #6074 - MKA5
One right and one left. Adapters connect directly to studs, 8 stud inboard hub. Studs 275
mm on center.
TSI #6075 - MKA6
One right and one left. Adapters connect directly to brake drum, 8 stud outboard drum.
Studs 275 mm on center with 1 /2" hub back plate thickness.
TSI #6076 - MKA7
One right and one left. Adapters connect directly to studs, 6 stud inboard hub. Studs 8
3/4" on center.
TSI #6077 - MKA8
One right and one left. Adapters connect directly to brake drum, 6 hole outboard drum.
Studs are 8 3/4" on center with 1 /2" hub back plate thickness.
TSI #6067 - MKHMV
Only one required. Adapter connects directly to studs, 8 stud inboard hubs. Studs are 6
1 /2" on center for Hummer/Humvee geared hubs.

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Maintenance
The maintenance recommendations on this product are on an as needed basis. Under normal use
it is advisable to periodically check for loose bolts, knobs the ratchet chain and rollers and tighten
them when necessary.
Apply grease on square tube where shown To adjust ratchet chain loosen bolts and lift on
ratchet and re-tighten the bolts.
Tighten round knobs if loose. Snug all other bolts as needed, also shown

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Warranty & Workmanship you can depend on.
With over 30 years of manufacturing experience we maintain the ability to provide competitive
prices while employing and manufacturing the majority of our products in the USA. Pride in
our workmanship and standing behind each and every product is not just our claim but our
uncompromising responsibility.
Tire Service International equipment is warranted to be free from defects in materials and
workmanship for a period of one year from the date of original purchase to the original owner.
Repair labor is warranted for 90 days from the date of original purchase. Bushings, blades, bearings
and normal wear and tear are not covered under warranty. Careless handling, negligence, misuse,
abuse, mutilation, improper operation, making unauthorized repairs, additions, and or alterations
automatically cancel this warranty and relieves TSI of any obligation. Cheetah tanks claimed to be
defective while under warranty will be evaluated at our manufacturing plant and either repaired
if possible or exchanged and returned or credit issued to the customer account at our discretion.
Damage resulting from dropping the tanks will not receive warranty consideration. Warranty parts
need to be returned prepaid to the plant for credit. Any replacement parts shipped from the plant
will be shipped at the customer's expense. Machines requiring warranty work must be brought to
the manufacturing plant in 201 Chelsea Rd, Monticello, MN or to a repair facility authorized by TSI.
!!WARNING!! Goods returned without an RGA will be refused. A Returned Goods Authorization
form must be obtained before returning any material or goods. All non-warranty returns will be
subject to a 15% restocking fee plus any additional charges for reconditioning/repacking.
Warranty and Return Policy
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