BE-PHDLG USER MANUAL
9
MAINTENANCE
READ ALL SAFETY WARNINGS AND PRECAUTIONS IN THIS MANUAL, AS WELL AS THE
SPECIFIC SAFETY PRECAUTIONS BELOW:
DANGER:
• Always use approved personal protective devices (such as eye, hand and hearing protectors), While
performing service or during operation.
• • Be sure that no bolt longer than 2-1/2” is used for PTO connections. Be sure that no bolt longer than
3-1/2” is used at the auger/gearbox connection. Longer bolts will protrude, hitting the safety shield and
causing a safety hazard.
CAUTION:
Be sure that all hardware is tight and in place.
GENERAL MAINTENANCE
• Nuts and bolts should be snugged with wrenches; cotter pins should be in place and bent over or flared
out with pliers.
• The Twist collar at the splined PTO union should be secure.
• The PTO shaft should be bolted with grade 2 bolt and roll pin inserted through the gear box yoke.
• Replace any safety shields that may have been removed during installation.
• Periodically lubricate the PTO shaft universal joints at the grease fittings.
GEAR BOX SERVICE
The gear box uses gear oil. The oil should be checked before the Digger is used.
The capacity is 4.4 pints (70oz.) of EP-140 weight gear oil. Any good quality, multiple grade gear oil such as
Shell Spirax 85w-140 HD oil may also be used.
SHEAR PROTECTION
CAUTION:
The 5/16” x 2-1/2” bolt connecting the PTO shaft to the gear box is a shear bolt. If the auger encounters
hard objects, such as large rocks or otherwise, locks up and cannot rotate properly, this bolt is designed
to shear to prevent damage to other parts of the machinery.
DO NOT UNDER ANY CIRCUMSTANCES INSTALL A BOLT HARDER THAN GRADE 2. All warranties will
be invalid if a bolt harder than Grade 2 is installed.
The roll pin fits across a groove machined around the shaft on the gear box. If the 5/16” shear bolt
shears, the mechanism is designed so that the roll pin holds the PTO on the gear box shaft to prevent
injuries or damage to the machine. The PTO shaft spins freely on the gear box shaft.
If the bolt shears, the cause of the shear should be determined, the Digger moved from that location
and the shear bolt replaced before starting to dig again.
