SkyTrak 6036 Service Manual - Manual (Page 283)

8.67 Model 6036 Legacy
Hydraulic System
h. Pump Installation
1. Place the pump (Fig. 8-33, 1) and a new oiled o-ring
(2) into position on the transmission. Align the pump
gear shaft with the internal transmission gear so that
the machined teeth mesh together.
2. Align the bolt holes with the pump mount holes.
Secure the pump to the transmission with four plain
washers (Fig. 8-33, 4), four lockwashers (3) and four
hex-head capscrews (5). Torque the capscrews to
75 lb/ft (102 Nm).
3. If necessary, slide the T-bolt band clamp (Fig. 8-33, 6)
onto the pump inlet hose (7). Secure the hose to the
hydraulic reservoir outlet connection with the T-bolt
band clamp.
4. Thread the outlet hose (Fig. 8-33, 8) onto the
connector (9).
5. Prime the pump by filling the pump inlet opening with
fresh, filtered hydraulic oil from a clean container
before attaching the inlet hose (Fig. 8-33, 7).
6. Place a new oiled o-ring (Fig. 8-33, 10) into position
over the opening and secure the 2" I.D. x 32" long
inlet hose (7) with two flange halves (11), four
lockwashers (12) and four hex-head capscrews (13).
Torque the capscrews to 31 lb/ft (42 Nm).
Figure 8-33 Pump Installation
7. Check all routing of hoses, wiring and tubing for
sharp bends or interference with any rotating
members. All tube and hose clamps must be tight.
8. Refill the hydraulic reservoir. The hydraulic reservoir
oil level must be in the upper 1/2" of the sight gauge
when the vehicle is level, the oil is cold and all the
cylinders are fully retracted.
Note: Be sure not to overfill the hydraulic reservoir when
you have the boom in the raised position since the lift/
lower cylinders will be holding oil that will be returned to
the hydraulic reservoir when the boom is lowered.
9. Start the engine and run at approximately one-third
to one-half throttle for about one minute without
moving the vehicle or operating any hydraulic
functions.
10. Inspect for leaks and check all fluid levels. The
hydraulic reservoir oil level must be to the middle of
the sight gauge.
Note: Check for leaks and repair as required before
continuing.
i. Pump Test
Refer to Section 8.7, “Hydraulic System Testing.”
1. Perform a flow meter test on the pump.
2. Check the load sense at the unloader valve.
3. Check the system functions.
MA7330
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2
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8 9
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7
WARNING:
Avoid prolonged engine
operation in closed areas with inadequate
ventilation. Failure to properly ventilate exhaust
fumes can result in death or serious injury.
WARNING:
Hydraulic oil leaking under
pressure can penetrate the skin and cause
severe personal injury. DO NOT use your hand
or any part of your body to check for hydraulic
leaks. When checking for hydraulic leaks, wear
safety glasses and gloves to help provide
protection from spraying hydraulic oil. Use a
piece of cardboard or paper to search for leaks.