Bush Hog 665H Assembly, 10 .5 GPM PTO Pump KIT, Or 8 GPM PTO Pump KIT, 11 .5 GPM PTO Pump KIT

PTO PUMP AND RESERVOIR KIT (Optional)

General Description

The PTO Pump Kit consists of those parts required to power the backhoe from the tractor’s PTO shaft. It includes the PTO pump and adapter, reservoir, filtra- tion system, hydraulic hoses and fittings. In addition, it includes a pump plate which attaches to the tractor’s draw bar and keeps the pump from turning with the PTO shaft.

Note: The speed of the backhoe operation increases as PTO speed increases.

Assembly

Note: When installing hoses and fittings always use thread sealant in permanent connections. Do not use thread sealant in union ends of adapters. Do not over- tighten fittings - they can split or expand, causing leakage.

1.Assemble filler tube (19) and breather cap with dip- stick (18) to reservoir (16) as shown in Figure 25 & 26.

2.Assemble reservoir (16) to backhoe using locknuts (3) as shown in Figures 25 & 26.

3.Preassembly of filter base and element (22):

Remove filter element from base to ease installation. Assemble pipe nipple (26) to inlet port on filter base (22) as shown in Figures 25 & 26.

Assemble 90 degree adapter union (5) to Outlet port on filter base (22) as shown in Figures 25 & 26.

4.Assemble filter base (22) to reservoir (16) using 90 degree pipe elbow (28 or 29) as shown in Figures 25 &

NOTE - Change filter element (11) every time oil is changed.

5.Assemble suction hose (23) to straight beaded fitting (21) using hose clamp (24). Connect assembly to 90 degree adapter union (5) located on filter base and ele- ment (22) as shown in Figures 25 & 26.

6.Connect 15” long return line hose (17) to steel oil line coming from the “OUT” port on backhoe control valve as shown in Figures 25 & 26.

7.Complete return line connection to reservoir (16) using pipe bushing (6), and 90 degree adapter union (12) as shown in Figures 24 & 25. Reinstall filter element to filter base (22)

8.Assemble Pump Plate (27) to pump (10), using hard- ware provided (1, 4, 7), as shown in Figures 25 & 26. Pump Plate may have to be readjusted later.

9.Slide PTO adapter (15) onto pump shaft allowing 1/8 inch between adapter and pump face and secure with two setscrews (9), as shown in Figures 25 & 26, lock with two nuts (2).

10.4.5 GPM PTO PUMP KIT -

Assemble suction hose (23) to pump (10), using reduc-

er (14), 90 degree beaded fitting (20), and hose clamp (24) as shown in Figure 25.

6.1 or 8 GPM PTO PUMP KIT -

Assemble suction hose (23) to pump (10), using reduc- er (28), reducer (14), 90 degree beaded fitting (20), and hose clamp (24) as shown in Figures 26.

11.4.5 GPM PTO PUMP KIT -

Connect 36” long pressure line (25) to steel oil line com- ing from the valve “IN” port fitting. Complete connection to pump using 90 degree adapter union (13) as shown in Figure 25.

6.1 or 8 GPM PTO PUMP KIT -

Connect 36” long pressure line (25) to steel oil line com- ing from the valve “IN” port fitting. Complete connection to pump usign 90 degree adapter union (12) and reduc- er (13) as shown in Figures 26.

IMPORTANT - If hoses are hooked up incorrectly, seri- ous damage to the backhoe valve will result.

12.NOTE: Initial fill up of the Reservoir Tank will require 4-1/2 gallons of fluid. Fill reservoir with recommended fluid to correct level, referring to Service Section in the Backhoe Manual.

13.Mount the backhoe to the tractor at this time follow- ing the procedure in the Attaching Kit Manual.

14.Slide complete pump assemble onto the PTO shaft and secure with lock pin on PTO adapter. Be sure kinks do not develop in any of the lines. Suction hose can be shortened to prevent this problem.

CAUTION

DO NOT REMOVE THE TRACTOR PTO GUARD

15.Pump Plate (27) may be adjusted (flipped front to back or bottom to top) on pump (10) for proper fit-up to tractor drawbar or three point mount if necessary. The optimum position is to have the plate pointing down and over the drawbar with the offset towards the tractor. (Refer to illustration on following page)

An alternate position for the pump plate may have it pointed upwards and retained by the Upper Bar of the 3- Point Mount Kit. Whatever position is used by the Pump Plate, it is important that the pump be restrained from rotating. (Refer to illustration on following page)

IMPORTANT - When mounting backhoe on the adapter, do not let the swing cylinders interfere with the backhoe pump, or the hydraulic lines become tangled in any part of the adapter during installation. Make sure both pres- sure and suction lines are free from kinks or twists to reduce back pressure and excessive heat built-up.

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