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June 2021
Service and Repair Manual
Hydraulic Pump
Part No. 1285307GT
S
®
-80 J, S
®
-80 J TraX
™
53
How to Install the Drive Pump Coupler
How to Install the Drive Pump
Coupler
1 Install the coupler onto the pump shaft with
the set screw towards the pump. Leave a
1/32 inch / 0.8 mm gap between the coupler
and pump end plate.
1 drive pump
2 coupler spacing
3 pump coupler
2 Apply Loctite
®
removable thread locker to the
coupler set screw. Torque the set screw to
70 ft-lbs / 95 Nm.
6-3
How to Prime the Drive and
Function Pumps
1 Fill the tank with hydraulic oil until the fluid
level is in the center of the sight glass at the
rear of the tank. Do not overfill.
2 If any of the pumps are new and have not
been previously used, they must be primed.
Drive Pump:
After the pump is installed,
fasteners torqued and all hoses connected,
remove one of the hoses at the top of the
pump (port E or port F) and add a minimum of
0.75 liter / 25 ounces of hydraulic oil to the
pump. Install and torque the hose to
specification.
Function Pump:
After the pump is installed,
fasteners torqued and all hoses connected,
remove the plug at the uppermost port of the
pump and add a minimum of 0.375 liter /
13 ounces of hydraulic oil to the pump. Install
and torque the port plug to 77 Nm / 57 ft-lbs.
3 Locate the quick-disconnect port at the top of
the siphon riser hydraulic oil supply line from
tank to the pumps.
4 Use a clear line to connect an air-powered
vacuum pump to the test port.
5 Activate the pump until no bubbles are seen
in the clear vacuum pump hose while the
pump is running. Disconnect the vacuum
pump from the quick-disconnect port.
6 Start the engine from the ground controls and
check for hydraulic leaks.
Содержание Genie S-80 J
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