210 Inverness Center Parkway
Birmingham, AL 35242

Telephone: 205-991-7733
Facsimile: 205-991-9993
www.altec.com

This notice applies to your vehicle. See SIL for specific unit identification.
April 20, 2020
Dear Altec Owner,
Altec Industries, Inc. has developed a product improvement which relates to certain LS60 Units.
Refer to SIL 753 for items covered under the warranty policy. Altec will supply necessary parts to correct
this condition.
In order to determine if your unit is affected by SIL 753, compare the serial number of your unit with the list of
affected units as described on the SIL. The product improvement can be performed by the customer or you may
contact Altec at 1-877-GO-ALTEC (1-877-462-5832) for further assistance.
At any time, you may contact Altec at 1-877 GO ALTEC (1-877-462-5832) with your unit’s serial number to
determine if there are any other outstanding notices.
If you have sold or retired the unit please call Altec at 1-877-GO-ALTEC (1-877-462-5832) so the records may
be changed.
We regret this inconvenience; however we are taking this action in the interest of your safety and continued
satisfaction with Altec products.
Thank you for your immediate attention on this important matter.

Altec Industries, Inc.
HiLine Operations
Duluth, MN

SIL 753

Service Information Letter
April 20, 2020
Units Affected: LS60 units (see attached list)

Maintenance Manual Correction
Altec is committed to providing our customers reliable products from initial delivery throughout
the useful life of the machine.
Altec discovered that the torque requirement for the inner race rotation bearing bolts for the
LS60 was incorrect on one of the pages in the Maintenance Manual. The correct torque requirement is 300 foot-pounds (407 N.m). In the two manuals included with the affected units, the
torque requirement is incorrectly stated at 365 foot-pounds (496 N.m) on page 24.
Two replacement pages stating the correct torque value are included with this SIL. Altec requires
that the original page 24 be removed from each of the two maintenance manuals in the three ring
binders and the replacement page be inserted in its place. This replacement should be completed
no later than 30 days from receipt of this SIL. If additional maintenance manuals are required for
multiple units, two-sided copies can be made and used for replacement.
After completing the manual update, complete and return the SIL 753 Completion form on page
2 of this SIL to Altec.
Call 1-877-GO ALTEC (1-877-462-5832) and select prompt 4, Technical Support, with questions.

Inspection labor
Repair labor
Account #
Travel
NHTSA code
Prime fail P/N
Doc ref

Altec Use Only
0.25 hr
0.0 hr
010.1953.43151.786.0000.000
Not Included
None
None
None

Parts Kit
None

Page 1 of 2

Part Number Qty
None
0

Warranty
No

SIL 753

SIL 753 Completion
Complete this form and return to Altec to document inspection completion.
Choose one of these options.
• Online through the customer portal – Altec Connect*
Sign in or Register for an account at www.altec.com/altec-connect/
1. Select Equipment
2. Select Altec Product Notices
3. Select Report a Completed APN
• Scan and Email to [email protected]
To login to your existing
• FAX to 1-877-659-9929
*Customer performed warranty can be submitted online for reimbursement
through Altec Connect.
Model

Altec Unit
Serial Number

Altec Connect account,
scan here with your
smart phone!

Date Maintenance Manual Update is Completed

Company Name: _______________________________________________

Phone____________________________

Service Company Name:_________________________________________

Phone:___________________________

Company Contact: _________________________________________________________________________________
Company Street Address:_____________________________________________________________________________
State:_________________________________________________________ZIP Code:____________________________
Signature:_____________________________________________________

Submission of this form does not order parts or schedule service from Altec.
If the customer or the customer’s warranty provider performs the repair, a warranty claim must
be submitted to be reimbursed for the cost of the parts and/or labor through Altec Connect.
For more information or to schedule the work to be done by an Altec Service technician call:
1-877-GO ALTEC (1-877-462-5832)
Make copies of this form for additional units if needed.
Page 2 of 2

Anti-seize compound may be used to prevent rust and
corrosion from forming on the metal-to-metal contact
areas between a connecting pin and its boss. It is also
recommended for certain fasteners to reduce friction during torquing to increase clamping load. Apply anti-seize
compound to the following components.
•
•
•
•
•
•
•
•
•
•
•

Pump input spline shafts
Outrigger cylinder and shoe pins
Rotation gearbox eccentric ring
Winch drum shaft/keys/set screws/line anchor
Boom pivot pin
Lifting cylinder pins
Outer extension cylinder pins
Outer extension cylinder octagon collars
Inner extension cylinder pins
Inner extension cylinder octagon collars
Leveling pivot pins and wedge bracket pivot pins

The area on which the anti-seize is applied must be clean
and dry for the anti-seize to be effective.
Pins used with self-lubricating bearings require special
attention. Apply anti-seize compound to the surface of
the pin only where the pin and steel bin bosses make
contact. This pin installation procedure is described under
Pins and Pin Retainers in this section.

Rotation Bearing Cap Screws

Grade 8 cap screws are used to secure the rotation
bearing to the pedestal and turntable. These cap screws
are coated with a dry film lubricant and have a patch
lock material permanently bonded to the threads. The
torque value for the outer race cap screws that secure
the rotation bearing to the pedestal is 260 foot-pounds
(353 N•m). The torque value for the inner race cap screws
that secure the rotation bearing to the turntable is 300
foot pounds (407 N•m). The cap screws require special
inspection procedures.

NOTICE
Only use Altec supplied cap screws and washers to
install the rotation bearing.
When rotation bearing cap screws or washers are removed, they must be replaced with new ones. Contact
your Altec representative for replacement fasteners.
Insufficient or uneven cap screw tightness can contribute
to reduced life of the bearing.

CAUTION
Injury can result from being pinched or trapped between moving components. Keep hands clear.

Use caution when covers have been removed to service the unit. Pinch points and shear points may exist
between moving parts. Replace the covers immediately
after servicing.

NOTICE
Use an accurate, click-type manual torque wrench
for the inspection of these cap screws. Torque the
cap screws by a smooth pull on the torque wrench
without jerking. Do not overtighten the cap screws.
If any cap screws are broken or missing, replace all the
fasteners in that race (refer to Section 6 under Rotation
Bearing Cap Screws). If a cap screw will not remain
properly torqued between normal inspections, further
inspection may be required.
Impacts to and excessive forces on the unit due to vehicular accidents, rollovers, and excessive loading may
result in structural damage not obvious during a visual
inspection. A more detailed inspection by a qualified
individual may be required to determine if replacement
of the rotation bearing and fasteners is required.
Visual Inspection Procedure
Perform this visual inspection procedure as recommended by the Preventive Maintenance and Inspection
Checklist.
Visually inspect all rotation bearing cap screws, looking for
any evidence that a cap screw is loose. Check for loose
washers under the heads of the cap screws by trying to
turn each washer by hand. If movement is indicated, all
the cap screws must be retorqued using the retorquing
procedure.
Annual Torque Inspection Procedure
Check the cap screws to be sure they are torqued to 90
percent of the normal installation torque. Use a regularly
calibrated, accurate torque wrench. If one or more of
these cap screws turns before the wrench clicks, check
the torque on the cap screws as described under Retorquing Procedure in this section. If the rotation bearing
is replaced or removed, the same inspection intervals
must be followed.
Retorquing Procedure
Perform this procedure on the entire bearing race (outer,
inner, or both) if any cap screws were found loose at the
visual or annual inspections.
Some components may need to be removed to make
the rotation bearing cap screws accessible for retorquing. It is important that experienced, trained mechanics
perform this procedure.

Section 4 — Preventive Maintenance and Inspection • 23

1. Retorque according to the appropriate pattern shown
in Figure 4.9 for the inner and outer race.

15

12

2

10

7. Beginning at number 2 on the inner race, torque
all inner race cap screws to 300 foot-pounds (407
N•m) again. Go around in a circular pattern this time
instead of the numbered order.

21
8

5

18

12
20

13

3

4

17

24
9

16
7

6
14

8

19

22
1
Outer Race

17

1

16

11

Rotation Gearbox Mounting Cap Screws
Special cap screws are used to secure the rotation gearbox to the turntable. The torque value for the cap screws
is 150 foot-pounds (203 N•m). The cap screws require
special inspection procedures.
Insufficient or uneven cap screw tightness can contribute
to reduced life of the gearbox.

CAUTION
Injury can result from being pinched or trapped between moving components. Keep hands clear.

9
12

13

6. Beginning at number 1 on the outer race, torque
all outer race cap screws to 260 foot-pounds (353
N•m) again. Go around in a circular pattern this time
instead of the numbered order.

4

3

Use caution when covers have been removed to service the unit. Pinch points and shear points may exist
between moving parts. Replace the covers immediately
after servicing.

NOTICE
Only use Altec supplied cap screws and washers to
install the rotation gearbox.

6

7
10

11
15

14
5
X
Gearbox Here
Inner Race

2

Use an accurate, drive click-type manual torque
wrench for the inspection of these cap screws. Torque
the cap screws by a smooth pull on the torque wrench
without jerking. Do not overtighten the cap screws.
Visual Inspection Procedure
Perform this visual inspection procedure as recommended by the Preventive Maintenance and Inspection
Checklist.

Figure 4.9 — Cap Screw Torque Patterns
2. Torque cap screw number 1 on the outer race to 260
foot-pounds (353 N•m).
3. Continue around the pattern, torquing each cap screw
to 260 foot-pounds (353 N•m).
4. Torque cap screw number 2 on the inner race to 300
foot-pounds (407 N•m). There is not a cap screw in
the number 1 position.
5. Continue around the pattern, torquing each cap screw
to 300 foot-pounds (407 N•m).
24 • Section 4 — Preventive Maintenance and Inspection

Visually inspect all rotation gearbox cap screws, looking for any evidence that a cap screw is loose. Check
for loose washers under the heads of the cap screws
by trying to turn each washer by hand. If movement is
indicated, retorque all the cap screws.
Annual Torque Inspection Procedure
Check the cap screws to be sure they are torqued to 90
percent of the normal installation torque. Use a regularly
calibrated, accurate torque wrench. If one or more of
these cap screws turns before the wrench clicks, retorque
all the cap screws. If the rotation gearbox is replaced or
removed, follow the same inspection intervals.