Bush Hog CBH80 PTO Pump & Reservoir KIT Installation, General Description CBH70, GPM Pump

PTO PUMP & RESERVOIR KIT INSTALLATION
General Description CBH70			7. Reinstall Filter Element to the Filter Base.
4.5 GPM Pump			8. Assemble Pump P late ( 26) to Pump	(11) using
The PTO Pump Kit consists of those par ts required			two 3/8” NF x 1-3/4 ” Bolts (1), Lockwashers (8), and
to power the backhoe from the tractor’s PTO shaft. It			Nuts (4 ). P ump Plate may have to be readjusted
includes the PTO pump and adapter, reservoir, filtra-			later when inst alled on t ractor PTO Shaft. The P late
tion s ystem, hyd raulic hoses, and fittings. In addi -			may need to be turned 180 degrees to provide prop-
tion, it includes a pump pla te which attaches to the			er e ngagement with tractor drawbar and h ave ade -
tractor’s dra wbar and keeps the pump from t urning			quate clearances.
with the PTO shaft.			9. Slide PTO Adapter (19) onto pump shaft, allowing
NOTE: The speed of the backhoe operation increas-			1/8” clearance between Adapter (19) in pl ace using
es as PTO speed increases.			two Setscrews (9) and 5/16” NC Nuts (2).
Assembly			10. Assemble Suction Hose (12) to Pump (11) using
			Reducer F itting (1 5) an d 90 D egree Barbed Fitti ng
IMPORTANT - When installing hoses and fitt ings			(16) Secure Hose using Hose Clamp.
always use thread sea lant in permanent connec -			11. Connect 36” H ydraulic Hose (21) to Inlet Li ne
tions. Do not use thread sealant in union ends of			steel oil line located under Left Hand Foot Pad area
adapters. Do not	over tighten fittings - t hey can		of the backh oe mainframe. Co mplete connection to
split or expand, causing leakage.			Pump using 90 Adapter Union (14).
IMPORTAN T - Ha ve a sui table ho ist avail able			IMPORTANT - If hoses are connected incorrectly,
before proceeding with loader setup.			serious damage to the backhoe valve will result.
1. Assemble Filler Tube (27) and B reather Cap with			12. NOTE: Initial fill up of Reservoir Tank will require
Dipstick (28) to Reservoir Tank (20).			4-1/2 gallons of fluid. Fill Reservoir with recommend-
2. Assemble Reser voir Tank (20) to backhoe main -			ed fluid to corr ect level; refer to Service	Section in
frame using 5/16” NF Locknuts (3).			the Backhoe Manual.
3. Preassembly of Filter Base and Element (22):			13. Install the backhoe to the t ractor at this time fol -
			lowing the ins tallati on pro cedure in the	Attaching
Remove Filter El ement from b ase t o e ase installa -			Section of the manual.
tion. Assemble Pipe Nipple ( 5) to “Inlet” por t on filter			14. Sli de co mplete Pump a ssembly on to the PTO
base (22).			shaft o f th e tracto r, ma king su re locki ng c ollar on
Assemble 90 Degree Adapter Union ( 13) to “Outlet”			PTO Adapter has locked into position.
port on filter base (22).			IMPORTANT - Make sure kinks DO N OT develop
4. Assemble Filter Base (22) to R eservoir Tank (20)			in a ny of the li nes. Suct ion hose can be short -
using 90 Degree Pipe Elbow (7) and 45 Degree Pipe			ened to prevent this problem.
Elbow (6).			! CAUTION
NOTE - Change Filter Element (29) every time oil is
changed.			DO NOT REMOVE THE TRACTOR PTO SHIELD!
5. A ssemble Suction Hose (12) to s traight B arbed			15. Pump Plate (26) may be adjusted (turned front to
			back or bottom to top) on Pump (11) for proper fit-up
Fitting (17) using Hose Clamp (18). C onnect assem-			to tractor drawbar or three p oint mount if necessary.
bly to 90 Degree Adapter Union (13) installed earlier			The o ptimum p osition is to have t he plate pointin g
on the Filter Base and Element (22).			down and o ver the drawbar with the offset towards
6. Install 9 0 De gree Adapter		Uni on ( 25) top upp er	the tractor. Refer to illustration.
port o n Reservoir	Tank (2	0). Inst all 9 0 Degree	An alternate position for the Pump Plate may have it
Adapter Union (24) to Retu rn Line “Check Valve” in
upper steel oil line located under Left Hand Foot Pad			pointed upwards an d reta ined b y t he U pper Bar of
area of the ba ckhoe mainframe. Complete return			the Th ree Point Mount Kit. Whatever	position is
line connection to Rese rvoir T ank usi ng Steel Oil			selected, it is importa nt that the pump be rest rained
Line (23).			from rotating. Refer to illustration.

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