Removal and Replacement
- Boom Ram
Removal
1 Park the machine on firm level ground, engage the
parking brake and set the transmission to neutral.
Lower the backhoe and loader end to the ground and
stop the engine.
2 Remove pivot pin retaining nut A and bolt B. Remove
the pivot pin C.
3 Remove the grease nipple from the eye end of the ram
(through access hole D).
4 Use the machine hydraulics to SLOWLY retract the ram.
5 Remove the hose clamp.
DANGER
Hydraulic Pressure
Hydraulic fluid at system pressure can injure you. Before
disconnecting or connecting hydraulic hoses, stop the
engine and operate the controls to release pressure
trapped in the hoses. Make sure the engine cannot be
started while the hoses are open.
INT-3-1-11/1
6 Vent residual hydraulic pressure from the backhoe
hoses by operating the backhoe controls back and forth
several times.
Note: If a hose burst protection valve is fitted on the ram, the
system will not vent. Extreme caution must be used when
releasing hydraulic connections - release the connections
one turn and allow the pressure to dissipate.
7 Label and then remove the boom ram hoses E. Plug
and cap all open orifices to prevent loss of fluid and
ingress of dirt.
!
CAUTION
This component is heavy. Do not attempt to remove it
unless its weight is held by a sling. Make sure that the
sling is attached to a suitable lifting appliance.
HYD 2-3/1
8 Fasten lifting straps to the boom ram, make sure that
the weight of the ram is supported by the sling.
9 Remove the pivot pin retaining nut F and bolt G remove
the kingpost pivot pin H.
10 Remove the boom ram.
Replacement
Replacement is a reversal of the removal sequence.
!
WARNING
Fine jets of hydraulic fluid at high pressure can
penetrate the skin. Do not use your fingers to check for
hydraulic fluid leaks. Do not put your face close to
suspected leaks. Hold a piece of cardboard close to
suspected leaks and then inspect the cardboard for
signs of hydraulic fluid. If hydraulic fluid penetrates your
skin, get medical help immediately.
INT-3-1-10/1
It will be necessary to extend the ram to align and engage
the boom pivot pin C. As the ram extends, the ram will tend
to turn.
For this reason it is recommended that a smaller diameter
steel bar is used to locate the boom ram at the kingpost
casting. The steel bar can be more readily removed to allow
for re-alignment of the boom pivot pin C.
When the boom pivot pin has been correctly aligned and
fitted, then fit the correct pivot pin H at the kingpost.
81 - 2
Section E
Hydraulics
9803/3280
Section E
81 - 2
Issue 1
Hydraulic Rams
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