4500 SRM 971
Reach Cylinders
CLEAN AND INSPECT
WARNING
Cleaning solvents can be flammable and toxic
and can cause skin irritation. Wear protection
for eyes and skin.
When using cleaning sol-
vents, always follow the recommendations of
the manufacturer.
CAUTION
DO NOT operate any functions if the front
frame has been removed.
Hydraulic oil can
come out of the hoses.
Clean all of the parts of the reach cylinder with sol-
vent. Dry the parts with compressed air. Inspect the
parts of the reach cylinder for damage and wear. Re-
place all parts that are worn or damaged. Replace all
parts included in the cylinder repair kit.
ASSEMBLE
1.
Install the parts of the rod assembly as shown
in Figure 16. Make sure to replace all seals and
other parts included in the cylinder repair kit.
Use Loctite
®
No. 242 on the rod and nut for the
piston. Install the piston seal and piston rings.
If removed, tighten the piston nut to 95 N•m
(70 lbf ft).
CAUTION
DO NOT cut or damage seals during installa-
tion. Be especially careful when moving seals
across threads or edges of parts. Install tape
over the rod threads to protect the seals.
2.
Install the rod seal, backup ring, O-ring, and
wiper on the retainer. Put a thin coat of hydraulic
fluid on the inside of the shell and all parts of the
piston and rod. Use O-ring lubricant and install
the rod assembly in the shell. Carefully install
the retainer on the rod and in the shell. Use a
spanner wrench to tighten the retainer to 129 to
142 N•m (95 to 105 lbf ft).
INSTALL
NOTE:
It may be necessary to loosen the hydraulic
fittings to allow movement of the rods. The rods need
to move for correct alignment at the mounts for the
scissor arms.
1.
If removed, install the correct rod end on the rod
as marked during removal. Install new bushings
in all four mounts for the reach cylinders. Lubri-
cate the bushings with multipurpose grease.
2.
Align the anchor end of the cylinders on the cylin-
der mount of the inner frame of the reach assem-
bly. See Figure 15. Install the mount pins and
shoulder bolt and nut to fasten the cylinders to
the inner frame. Use a hammer with a soft metal
(brass or copper) or a plastic face to install the
pins.
3.
Connect the hydraulic lines to the reach cylin-
ders as marked during removal. Always use new
O-rings on the O-ring fittings.
4.
Hold each reach cylinder to align the rod end to
the scissor arm mounts. Use a hammer with a
soft metal (brass or copper) or a plastic face to in-
stall the mount pins to fasten the rod end of each
reach cylinder. Align the holes for the shoulder
bolt and nut. Install the shoulder bolt and nut.
NOTE:
If the rod ends were not removed and the
cylinders are installed in the same positions, reach
adjustment is normally not necessary.
5.
If the rod ends were NOT removed, install the
shoulder bolt and nut at each mount pin. If the
rod ends were removed, reach adjustment IS nec-
essary. Make sure the adjustment is complete be-
fore installing the shoulder bolt and nut.
6.
Make sure the hydraulic fittings are tightened,
and remove the clamps and blocks under the load
bearings.
CAUTION
DO NOT operate any functions if the front
frame has been removed.
Hydraulic oil can
come out of the hoses.
7.
Operate the REACH control lever to operate the
function to check for leaks and correct operation.
8.
Remove the air from the system and adjust the
stroke of each reach cylinder as described in Car-
riage or Reach Assembly Adjustments.
31
Содержание N30-40XMR3 C470
Страница 8: ...Description 4500 SRM 971 Figure 2 Hydraulic Parts for Double Reach Assembly Single Reach is Similar 4...
Страница 24: ...Double Reach Scissor Arms 4500 SRM 971 Figure 11 Double Reach Scissor Arms 20...
Страница 29: ...4500 SRM 971 Inner Frame Assembly Figure 12 Inner Frame 25...
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Страница 50: ...TECHNICAL PUBLICATIONS 4500 SRM 971 10 07 4 03 11 02 7 02 5 01 Printed in U S A...
