Manitowoc Grove TMS700E User Manual

Grove Published 01-29-2015, Control # 512-01 2-71
TMS700E SERVICE MANUAL HYDRAULIC SYSTEM
2
1. Remove all dirt, grease and other contaminants from
around the ports and the head.
2. Retract the cylinder fully to avoid damaging the rod
during removal.
3. Support the base of the cylinder to avoid sudden
extension. Secure cylinder in work area with clamps or a
chain vise to prevent rolling.
NOTE: Excessive wear due to side load or binding is a
possibility. Mark or note the piston and head
relationship to the rod and barrel.
4. Position the rod mount with the ports facing down. Use a
means of collecting the oil, remove the port plugs and
the check valve and allow cylinder to drain.
5. Support the rod with a hoist sling and pull the rod to full
extension to remove additional oil. Keeping the rod
supported, tap the rod back in 1 inch after all oil has
drained.
6. Place protective padding around the rod near the head
to prevent damaging the chrome during head removal.
7. Insert a spanner wrench into the holes provided and turn
the head counter clockwise to remove. If the head is
difficult to remove, tap the head with a plastic mallet
while turning.
8. With the rod still supported, gently pull the piston from
the barrel being careful not to damage the internal
threads. Place the rod on a surface that will not damage
the chrome.
9. Remove the setscrews located near the top of the
piston.
10. Insert a spanner wrench into the holes on the face side
of the piston.
11. Turn the piston counter clockwise to remove.
NOTE: Arranging discarded seals and rings in the order of
disassembly will aid in installation of new seals and
rings. Pay attention to how each seal and ring is
installed to avoid installing replacement seals and
rings improperly.
12. Remove the wear rings and ring seal from the piston.
13. Remove the O-rings, backup ring, wear rings, ring seal
and wiper ring from the head.
Inspection
1. Inspect the rod. There should be no scratches or pits
deep enough to catch the fingernail. Pits that go to the
base metal are unacceptable. Chrome should be
present over the entire surface of the rod. If lack of
chrome on rod, the rod should be replaced.
2. Inspect rod for straightness. Determine if it can be
straightened or must be replaced.
3. Inspect the head. Visually inspect the inside bore for
scratching or polishing. Deep scratches are
unacceptable. Polishing indicates uneven loading, and
the bore should be checked for out-of-roundness.
4. Inspect the piston. Visually inspect the outside surface
for scratches or polishing, Deep scratches are
unacceptable. Polishing indicates uneven loading, and
the diameter should be checked for out-of-roundness.
5. Inspect the barrel carefully for scoring. If barrel is
scored, it must be repaired or replaced.
DANGER
Do not use air pressure to remove the rod. Use only a
source of controlled hydraulic oil pressure if the rod is
hard to move.
CAUTION
Exercise extreme care when handling or setting down the
rod. Damage to the rod surface may cause unnecessary
maintenance and expense.
CAUTION
When removing seals and rings, avoid scratching the
grooved and gland surfaces.
Reference Only

Manitowoc Grove TMS700E Specifications

General

Brand	Manitowoc
Model	Grove TMS700E
Category	Construction Equipment
Language	English