BENDIX TCH-001-008 User Manual

Technical Bulletin

Bulletin No.: PRO-01-08 Effective Date: 8/20/77 Cancels: PRO-01-8 Dated 7/20/77 Page: 1 of 1

Subject: Tu-Flo 1000 Compressor Connecting Rod

The connecting rod design in the Tu-Flo 1000 Compressor has been revised by a
change in material from aluminum to nodular iron. This will give the rod greater strength
than was possible with the aluminum rod.

The design change eliminates the lockwashers used under the connecting rod bolts, and
instead uses lock strap 292129. The corners of the lock strap should be turned up
around the hex flats on the rod bolts after they are properly torqued to 80-100 inch
pounds.

The service number for a connecting rod assembly with wrist pin bushing and locking
strap without bearing inserts is 289029. 289029 is interchangeable with and supercedes
the aluminum rod piece number 279694.

The chart below shows other pertinent piece numbers for service:

Bearing Insert Piston & Pin Ring Set (Includes

Size Kit Assembly 10 Rings for 2 Pistons)
Std. 282751 (includes 226103 288646

2 – 239409)

.010” 282752 (includes 226998 288647
Undersize 2 – 240619)

.020” 282753 (includes 226999 288648
Undersize 2 – 240620)

.030” 282754 (includes 227000 288649
Undersize 2 – 240621)

Caution:
Regarding the change from aluminum to nodular iron connecting rods, any customer

attempting to purchase a single connecting rod must be advised that the new iron rod
cannot be used in combination with aluminum rods. Anyone trying to repair or rebuild a
Tu-Flo 1000 should be warned they should use all aluminum or all iron rods. Your
records for iron rod 289029 should be so noted as well as aluminum rods 229004 or

279694.