Altec Industries, Inc.
Elizabethtown Operations
Elizabethtown, KY

SIL 822

Service Information Letter
August 25, 2021
Units Affected: Certain AT237 and AT248F aerial devices built from April 2017 through March
2020 (Verify that your unit serial number is affected by reviewing the attached list in this SIL or by accessing your fleet on connect.altec.com/login)

Hydraulic Hose Routing Inspection
Altec is committed to providing our customers with safe and reliable products from initial delivery
throughout the useful life of the unit.
Altec has learned that the affected units may have insufficient slack in the hydraulic hoses at the riser between the lower and upper booms, which may lead to hoses rubbing on the metal surface of the riser. This
could cause damage to the hoses and result in unplanned downtime.
Altec requires the hydraulic hose routing to be inspected on the affected units no later than the next periodic
maintenance interval or 90 days from the receipt of this SIL, whichever comes first. Use the Inspection
Procedure beginning on page 2.
If the inspection criteria are not met, call 1-877-GO ALTEC (1-877-462-5832) option 1 to order the Bonded Hose Assembly Replacement Kit, part number 991093546. Install the kit upon receipt.
This inspection and repair are covered under the Altec Warranty Policy and can be performed by Altec, the
customer, or the customer’s warranty provider. Altec will perform the work for free at an Altec facility. If
the customer or the customer’s warranty provider performs the work, a warranty claim must be submitted
to be reimbursed for the cost of the parts and/or labor. Altec will allow up to $45 for the labor to perform
the inspection and up to $270 for the labor to install the kit.
Call 1-877-GO ALTEC (1-877-462-5832) option 3 to schedule the work to be done by an Altec Mobile
Service technician or option 2 to schedule the work to be done at an Altec facility. Customers are responsible for the travel costs of an Altec Mobile Service technician if the technician performs the inspection
and/or repair at the owner’s location.

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

Altec Use Only
1.0 hr
3.0 hr
010.0554.43151.554.0000.000
Not included
98
027199336
074900785

Altec Use Only
Parts Kit
Part No.
Qty
Bonded hose assembly repl. kit
991093546 1

Page 1 of 4

Warranty
Yes

SIL 822

Inspection Procedure
Normal mechanic’s hand tools are required for this procedure. Read and understand all steps of the instructions before beginning the procedure.
1. Position the unit on a level surface. Apply the parking brake. Ensure that the booms are fully
retracted and stowed. Turn off the engine. Remove the key from the ignition and secure it.
Chock the wheels. Follow your employer’s vehicle lockout/tagout procedure.
2. Locate the hose bundle that passes from the arm to the lower boom in front of the riser (refer
to Figure 1).

Riser Hose Bundle

Riser

Figure 1 — Hose Bundle at Riser

3. Inspect the hose bundle for any wear or damage due to contact with metal edges on or near
the riser. Damage would be deformation to the hoses inside the bundle.
• If the hose bundle is in good condition, proceed to step 4.
• If there is wear or damage to the hose bundle, proceed to step 8.
4. Gently pull the hose bundle upward and outward away from the riser to allow taking a measurement of its natural slack. Do not force it. Hold the fabric hose sleeve snug against the side
of the hoses toward the riser. Use a tape measure to determine the maximum gap between the
front of the riser and the side of the hose bundle (refer to Figure 2).
• If the gap is at least 3 inches, the hoses are routed correctly. Proceed to step 8.
• If the gap is less than 3 inches, the hose routing is incorrect. Proceed to step 5.
5. Cut off the plastic cable tie retaining the riser hose bundle to the adjacent hose bundle in the
turntable (refer to Figure 3).

Page 2 of 4

SIL 822
Adjacent
Hose Bundle
Riser
Gap

Riser Hose
Bundle

Turntable

Cable Tie

Riser Hose
Bundle Lifted
Upward and
Outward

Figure 3 —
Removing the Cable Tie

Figure 2 —
Measuring Hose Bundle Gap

6. Increase the hose bundle gap at the riser by gently pulling the hose bundle up at the pedestal
and turntable and transferring it through the arm to the front of the riser. Do not use excessive force to push or pull the hose bundle. Reattach the riser hose bundle to the adjacent hose
bundle in the turntable with a new cable tie.
7. Repeat step 4.
8. Review inspection results.
• If the hoses are not damaged and there is sufficient slack, complete the Inspection Sheet
at the end of the SIL and return it to Altec.
• If damage to hoses is found or insufficient slack is found that is not repairable by step 6,
take the unit out of service until the kit can be installed. Do not complete the Inspection
Sheet at the end of the SIL.
- Call 1-877-GO ALTEC (1-877-462-5832) option 1 to order the Bonded Hose Assembly Replacement Kit, part number 991093546. Install the kit upon receipt.
- Call 1-877-GO ALTEC (1-877-462-5832) to schedule the work to be done by Altec.

Page 3 of 4

SIL 822

SIL 822 Hydraulic Hose Routing Inspection Sheet
Complete this form and return to Altec if all fasteners are correct, not damaged, and tight.
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]
• FAX to 1-877-659-9929
*Customer performed warranty can be submitted online for reimbursement
through Altec Connect.
Model

Altec Unit Serial Number

To login to your existing
Altec Connect account,
scan here with your
smart phone!

Date Inspected

Company Name: _______________________________________________

Phone____________________________

Service Company Name:_________________________________________

Phone:___________________________

Company Contact: _________________________________________________________________________________
Company Street Address:_____________________________________________________________________________
City _______________________________________________ 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 4 of 4