JLG DVSP Series Service Manual - Manual (Page 99)

SECTION 5 - MAST COMPONENTS
3121136 – JLG Lift – 5-11
6. When the rod assembly is ready to be installed into
the tube, liberally apply an anti-seize lubricant to the
cylinder head surface which slides into the cylinder
tube.
7. Next dip the entire rod assembly into hydraulic fluid
and stuff this assembly into the tube. Watch the
seals as they pass over the rod port (if visible) to be
sure they are not nicked or cut.
8. Install the head until the retaining ring seats in it’s
groove.
Cylinder Installation
To install the lift cylinder reverse the Lift Cylinder Removal
instructions at the start of this section, however perform the
following additional steps during re-assembly.
1. Apply Loctite #222 (purple) and torque to 85 ft. lbs.
the cylinder mount shoulder screws securing the lift
cylinder mount halves together at the bottom of the
mast.
2. Check that the platform electrical control cables and
the sequence cables are seated in their sheave
wheel assemblies when extending mast sections for
reassembly.
3. After assembly, readjust the chain at the bottom of
mast section-3 and apply Loctite #242 to the lock
nuts before final tightening.
4. Remove the plastic from under the hydraulic reser-
voir tank cap.
Lift Down Valve and Manual Release Installation (DVL/DVSP)
1. Lift Down Valve (a) 3. Solenoid Retaining Nut 5. O-Ring with Backing Rings (a) 7. Solenoid O-Ring (a)
2. Valve Solenoid (b) 4. Manual Release Assembly 6. Valve O-Ring (a)
Notes: (a) Coat all o-rings with clean hydraulic fluid before assembling.
(b) Mount with electrical terminals pointing down.
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