3.
system pressure.
Operate all hydraulic controls to relieve hydraulic
6. Connect two (2) wires to neutral switch on piston
pump (Fig. 30).
4.
Remove traction cable ball joint from control plate on
7. Remove plugs or caps from disconnected hydraulic
hoses and ports of the pump assembly. Lubricate new
o–rings and install fittings and hoses to correct location
on gear and piston pumps.
piston pump by removing lock nut (Fig. 30). Remove cap
screw from control plate. Locate and retrieve three (3)
flat washers (Fig. 31).
5.
ton pump (Fig. 30).
Disconnect two (2) wires from neutral switch on pis-
8. Secure R–clamp and right side brake cable to pump
assembly with flange head screw and flange nut.
6.
cures R–clamp and right side brake cable to pump as-
sembly (Fig. 30).
Remove flange head screw and flange nut that se-
9. Install new hydraulic oil filter and fill hydraulic reser-
voir with correct oil (see Operator’s Manual).
10.Properly
fill hydraulic system (see Charge Hydraulic
7.
Installing Hydraulic System Components at the begin-
ning of the Service and Repairs section of this chapter.
Read the General Precautions for Removing and
System in the Service and Repairs section of this chap-
ter).
11.
Stop engine and check for hydraulic oil leaks. Check
NOTE: To ease reassembly, tag hydraulic hoses to
hydraulic reservoir oil level.
show their correct position on the pump assembly.
4
8.
Put a drain pan below the pump assembly. Remove
3
hydraulic hoses and fittings connected to piston and
gear pumps. Put plugs or caps on disconnected hydrau-
lic hoses to prevent contamination of the system. Put
plugs in open ports of pumps.
1
9.
Support the pump assembly to prevent it from falling.
2
Remove two (2) cap screws, lock washers and flat
washers that retain pump assembly to engine bell hous-
ing.
10.Carefully
pull pump assembly from engine and lower
it out of the machine.
Figure 30
11.
(see Gear Pump Removal in this section).
If needed, separate gear pump from piston pump
1.
2.
Traction cable lock nut
Neutral switch
3.
4.
R–clamp/brake cable
Centering arm
Installation (Fig. 29)
1.
If gear pump was removed from piston pump, install
gear pump to piston pump (see Gear Pump Installation
in this section).
1
2
3
4
2.
Apply antisieze lubricant to piston pump shaft
splines.
3.
engine. Make sure that both bushings on control plate
are between centering arms on rear of engine (Fig. 30).
Carefully raise pump assembly and position it to the
6
7
5
4.
Align spline teeth and slide piston pump input shaft
into engine coupling spline. Support pump to prevent it
from falling while installing two (2) cap screws, lock
washers and flat washers to secure pump to engine bell
housing.
Figure 31
1.
2.
3.
4.
Cap screw
5.
6.
7.
Lock nut
Flat washer
Neutral plate
Flat washer
Ball joint
5.
Secure traction cable to control plate with cap screw,
Traction cable
three (3) washers and lock nut (Fig. 30 and 31).
Multi Pro 5700–D
Page 4 – 35
Hydraulic System
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