Genie TZ-34/20 Service Manual page 47

January 2016
7 Tag, disconnect and plug the hydraulic hoses
from the power unit. Cap the fi ttings.
Note: Do not disconnect the hydraulic fi lter lines
from the power unit.
8 Tag and disconnect the brake line at the fi tting
under the motor controller.
9 Remove the hydraulic fi lter from the fi lter head.
10 Remove the power unit module retaining
fasteners and remove the power unit module
from the machine.
11 Remove the mounting fasteners that attach the
hydraulic tank to the power unit. Remove the
tank from the power unit.
12 Remove the pick-up fi lter. Clean the fi lter and
tank using a mild solvent.
13 Install the pick-up fi lter onto the oil pick-up.
14 Apply thread sealant to the threads of the drain
plug. Install the drain plug into the pump and
tighten. Do not overtighten.
15 Install the hydraulic tank onto the power unit.
Component damage hazard.
The O-ring can be damaged if
the hydraulic tank is not installed
correctly. Use caution when
installing the hydraulic tank onto
the power unit.
16 Install the power unit onto the machine, and
install and tighten the power unit retaining
fasteners. Do not overtighten.
17 Apply a thin layer of fresh oil to the gasket of
the new oil fi lter.
Part No. 825934
Section 3 • Scheduled Maintenance Procedures
18 Install the hydraulic hoses onto the power unit.
Torque to specifi cation.
19 Install the brake line to the brake fi tting under
the motor controller and tighten the fi tting. Do
not overtighten.
20 Install the wire harness onto the motor
controller and 275A fuse.
21 Route the trailer wiring harness through the
module bulkhead and to the front of the trailer.
Secure the wiring.
22 Install the wiring harness onto the valve coils at
the power unit.
23 Fill the tank with hydraulic oil until the oil is
visible in the sight gauge. Do not overfi ll. Refer
to Section 2, Specifi cations.
24 Activate the pump to fi ll the hydraulic system
with oil and bleed the system of air.
25 Repeat steps 23 through 24 until the hydraulic
system and tank are both full.
26 Retract the outriggers and return the boom to
the stowed position.
27 Clean up any oil that may have spilled. Properly
discard the used oil and fi lter.
Genie TZ-34/20
CHECKLIST E PROCEDURE
Component damage hazard. The
pump can be damaged if operated
without oil. Be careful not to empty
the hydraulic tank while in the
process of fi lling the hydraulic
system.
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