Allied Hy-Ram HR270, Safety, Operation And Maintenance Instructions, Page: 42 / 60

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10.0 Changing the Tool – [cont’d]
10.3.2 Tools Required to Install

PPE including safety eyewear and gloves

Snap Ring Pliers

Hammer - Hand sledge

Drift pin

Sling and lifting device

Grease gun
10.3.3 Tool Install
IMPORTANT
Rapid wear of bushings and tool will result if the
following are not observed.

Pre-lubricate the breaker tool before inserting
into front head. This applies to new tools and
tools that have been wiped clean for
inspection.

Prevent dirt and rocks from contaminating the
grease.
Fig. 10-6 Pre-Lube the Tool Shank
1. Position breaker horizontally on a stable and
level surface. Use adequate load bearing device
to support weight of breaker.
2. If attached to the carrier, close shut off valves
[Fig. 10-3].
3. Large Tools are Heavy! [Fig. 10-5]. Handle tools
with a suitable hoist and sling. Insert tool in front
head.
4. Insert the large retainer (B). [Fig. 10-4].
5. Insert small pin (C) through slot in large retainer
(B) until fully engaged. [Fig. 10-4].
6. Install (D) Rubber Plug and (E) Snap Ring. [Fig.
10-4].
CAUTION
If tool lubrication is provided by an automatic
dispenser, please read carefully. When delivery is
continuous and the output is properly adjusted, the
amount dispensed from the pump will be sufficient
in volume to replenish the amount consumed
during normal breaker operations. Any
interruptions from normal delivery will require
special attention before the breaker is returned to
service. Interruptions from normal delivery include:

New replacement tool installed

New replacement bushings installed or wiped
clean of grease for purpose of inspection

Any grease line is replaced or added

Operating the grease dispenser beyond the
minimum mark has depleted the reservoir
Prior to insertion, pre-lubricate all new tools or if
used tool was cleaned for inspection. Spread a
layer of clean grease over surface of tool shank
including the retainer slots. Further greasing is
required after it is installed. Read and follow
instructions for re-lubrication in Section 10.4. New
grease lines must be Pre-filled. Purge all pockets
of air until delivery is continuous.
10.4 Tool Re-Lubrication – Conventional Method
CAUTION
Crush injury from falling or shifting loads.
All loads must be stable before tool re-
lubrication.
Engage interlock, shut off carrier and
remove key. Follow safety instructions in
the manual provided by the carrier
manufacturer.
Figure 10-7. The breaker must be stood upright with
the tool contacting the ground. Use the carrier to
push down until the tool is seated firmly against the
thrust ring.
Chisel Paste
Pre-Lube Coverage