Rhino Mounts DB150 manual Operation, Problem, Possible Cause, Remedy

OPERATION

Problem	Possible Cause	Remedy
Spindle Leaking At	Due to Motor Seal Failure	See section on motor seal failure and repair as
Motor	(hydraulic Oil leak)	needed
	Motor Loose or bolts	Bolts should be checked every 8 hrs. Loss of
	missing	torque will result in seal failure and leakage
	Gasket torn due to	See above
	movement of motor on
	spindle flange
	Excessive Backpressure in	Remove the Spindle vent plug and check for
	Spindle	clogs or contamination.
Spindle Leaking	Seal Damaged due to	Replace as required. Check for damaged or
Around Bottom Seal	Debris	missing seal guard
	Bearings Loose	Disassemble the Spindle and inspect the
		bearings for damage. Re-assemble and
		properly pre-load the bearings based on the
		technical service manual.
	Seal blown out due to	Remove the Spindle vent plug and check for
	excessive back pressure	clogs or contamination.
Spindle Leaking At	Relief fitting installed in the	Install the vent in the top most hole or even
Relief Vent	fill hole (wrong hole)	with the top of the top bearing race. The lower
		hole is the fill hole and should have a grease
		zerk or plug installed.
	Spindle Overfilled	Overfilling will result in the lubricating oil being
		expelled from the vent.
Spindle Overheating	Low Grease Level in the	Fill lubricant until it can be seen in the top most
	spindle	(vent plug) hole.
	Excessive Bearing Pre-	Disassemble the spindle and inspect the
	load	bearings for wear. Re-assemble following the
		bearing pre-load specifications in the Technical
		Service Manual.
	Blade bar bolts are too	Installing the incorrect bolts (too long) for the
	long	blade carrier will allow the bolts to contact the
		lower bearing and will lock up the spindle.
		Install the correct bolts.
Spindle Shaft Loose or	Bearing Pre-load adjusting	Locking washers are provided to retain the pre-
Falls Out	nut and/or lock nut failure	load lock nut in place. Improper installation of
		the washer and locking mechanism will allow
		the lock nuts to back off. Re-assemble
		following the recommended procedures
	Bearing cups or cones not	Disassemble and check for wear. Follow
	installed properly	reassembly procedures indicated in the
		Technical Service Manual
	Severe upper bearing	Usually due to lack of lube. Replace the
	failure.	bearing(s) and make sure the spindle is
		properly filled. Also check for leakage and
		repair as needed.
DB150 07/11	Operation Section 4-45
© 2011 Alamo Group Inc.

OPERATION