Amerequip 8600 Backhoe - Manual (Page 27)

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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 torque arm which attaches to the
tractor’s lower link 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 overtighten fittings - they can split or
expand, causing leakage
1. Assemble filler tube (1) and breather cap with dip-
stick (2) to reservoir (3) as shown in Figure 19.
2. Assemble reservoir (3) to backhoe:
Use 5/16 x 3/4” bolt (39), flat washer (36), and lock-
washers (37) as shown in Figure 19.
3. Assemble suction hose (4) to reservoir (3) using
street elbow (5), hose nipple (6), and hose clamp (7)
as shown in Figure 19.
4. Preassembly of filter base and element (8):
Assemble street elbow (5), pipe bushing (9), and 38”
hose (12) to Inlet port on filter base (8) as shown in
Figure 19. Assemble pipe bushing (9) and adapter
union (28) to Outlet port on filter base (8) as shown in
Figure 19.
5. Assemble filter base and element (8) to Left Hand
Foot Pad on backhoe using 1/4 x 3/4” bolt (13), lock-
washer (14), and flat washer (15) as shown in Figure
19.
NOTE - Change filter element (16) every time oil is
changed.
6. Connect return line hose (12) to “OUT” port on
backhoe control valve. Note - Backhoe return line
hose is routed under reservoir tank.
7. Complete connection between filter base (8) Out-
let port and reservoir (3) using 29” hose (17), pipe
bushing (9), and street elbow (11) as shown in Figure
19.
8. Assemble torque arm (18) to pump (19), using
hardware provided (20, 21, 22), as shown in Figure
19. Pump plate may have to be readjusted later.
9. Slide PTO adapter (23) onto pump shaft allowing
1/8” between adapter and pump face and secure with
two setscrews (24), as shown in Figure 19. Lock with
two nuts (25).
10. Assemble suction hose (4) to pump (19), using
pipe adapter (26), street elbow (5), hose nipple (6),
and hose clamp (7) as shown in Figure 19. Set-up
requires a pipe bushing (27) between the pipe adap-
ter and the street elbow.
NOTE: For Pump and Reservoir installation, pres-
sure line is routed under the reservoir tank. To ease
installation of pressure line, 90 degree hydraulic fit-
ting in control valve “IN” port can be removed. Attach
90 degree fitting to hose, reinstall fitting and proceed
as noted below.
Connect pressure line between valve “IN” port fitting
and pump, using adapter union (28) and hose (12) as
shown in Figure 19. Set-up requires a pipe adapter
(29) between the pump and adapter union.
IMPORTANT - If hoses are hooked up incorrectly,
serious damage to the backhoe valve will result.
11. NOTE: Initial fill up of the Reservoir Tank will
require 4fi gallons of fluid. Fill reservoir with rec-
ommended fluid to correct level, referring to Service
Section in the Backhoe Manual.
12. Mount the backhoe to the tractor at this time fol-
lowing the procedure in the Attaching Kit Manual.
13. Slide complete pump assembly 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
14. Attach torque arm (18) to tractor’s lower link using
hook-up chain (30), 3/8 x 2” bolt (31), washer (32),
lockwasher (21), and nut (22), as shown in Figure 19.
Torque arm (18) may be adjusted on pump (19) for
proper fit-up to lower link if necessary.
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 pressure and suction
lines are free from kinks or twists to reduce back
pressure and excessive heat build-up.
PTO PUMP AND RESERVOIR KIT
(Optional)