TM 5-2420-231-10
0012
BACKHOE OPERATING PROCEDURES - Continued
Installing Backhoe Bucket
WARNING
Do not leave the BHL when engine is operating. If external procedures require engine to be
operating, have another person help. Failure to comply may result in serious injury or death
to personnel.
Make sure all other personnel are away from the BHL. Failure to comply may result in
serious injury or death to personnel.
CAUTION
Do not use backhoe boom to move the BHL unless bucket is attached. Damage to hydraulic
quick coupler may result.
NOTE
1. Move backhoe into position to pick up bucket, with bucket off to left or right of the BHL approximately 30
degrees and with boom and dipper approximately 90 degrees to each other (Figure 8).
2. Retract backhoe bucket cylinder to engage bucket into hydraulic quick coupler.
NOTE
Left and right backhoe hydraulic quick coupler switches must be pushed at same time to
activate quick coupler.
3. Push top of both backhoe hydraulic quick coupler switches (Figure 10, Items 1 and 2) to retract both
hydraulic quick coupler pins (Figure 10, Item 4).
4. While holding down top of both backhoe hydraulic quick coupler switches (Figure 10, Items 1 and 2), lift
backhoe bucket to allow hook (Figure 10, Item 3) to rotate into locking position.
5. Push bottom of both backhoe hydraulic quick coupler switches (Figure 10, Items 1 and 2) to extend both
hydraulic quick coupler lock pins (Figure 10, Item 4).
6. Visually check that backhoe hydraulic quick coupler lock pins (Figure 10, Item 4) are fully extended into
bucket ears before operating.
0012-17
