- Mini Hydraulic Excavator
- 303E (S/N: CR71-1205; SGE1-292; SMG1-1621; HHM1-2117)
Reference: Refer to M0073592Service Magazine, "An Updated Battery Wiring Group is Now Used on 303E Mini Hydraulic Excavators"
Description Of Change: The battery wiring group on certain 303E CR Mini Hydraulic Excavators is now updated with an improved mounting procedure.
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| Illustration 1 | g06154836 |
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(A) Battery Wiring Gp
(B) Ladder Clip (C) Cable Strap | |
In severe applications, excess engine vibration may have adverse effects to the harnesses in the battery wiring group. The adverse effect occurs where the harness is secured to a fixed point. Refer to Illustration 1.
Adaptable To: The following changes are adaptable to the products within the listed serial numbers, and are effective with all products after the listed serial numbers.
The 422-2917 Chassis Harness As or 444-9942 Chassis Harness As on certain 303E CR Mini Hydraulic Excavators may be damaged during machine operation.
In severe applications, excess engine vibration may have adverse effects to the harnesses where the harness is secured to a fixed point.
Most of the observed cases of harness failure have resulted in an alternator charge issue.
Rework Procedure
| Required Parts | ||
|---|---|---|
| Item | Qty | Part |
| 1 | 1 | 7K-1181 Cable Strap |
| 2 | 1 | 306-8526 Grommet |
- Remove the existing Cable Strap (C) and discard.
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Illustration 3 g06154846 (2) 306-8526 Grommet
(B) Ladder Clip - Install a 306-8526 Grommet (1) onto the harness. Place the Grommet over the tape (D) on the harness.
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Illustration 4 g06154848 (1) 7K-1181 Cable Strap
(2)306-8526 Grommet
(A) Battery Wiring Gp
(B) Ladder Clip - Install the 7K-1181 Cable Strap (2) through the clip (B) and around the grommet (1). Refer to Illustration 4.
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Illustration 5 g06154850 (1) 7K-1181 Cable Strap
(2)306-8526 Grommet
(A) Battery Wiring Gp
(B) Ladder Clip - Tighten the Cable Strap (1). Cut off the excess strap.
- Adjust engine low idle to 1525 ± 25 rpm.
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| Illustration 2 | g06154844 |
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(A) Battery Wiring Gp
(B) Ladder Clip (D) Tape | |
