Ignite Auger 75 DDH, Operation & Maintenance Manual

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42
HYDRAULIC CONNECTION
SPECIFICATIONS
O-ring Face Seal Connection
IMPORTANT
MACHINE DAMAGE
When repairing hydrostatic and hydraulic systems,
clean the work area before disassembly and keep all
parts clean.
Always use caps and plugs on hoses, tubelines, and
ports to keep dirt out. Dirt can quickly damage the
system
◂
I-2003
Figure 61
B-7575
Use petroleum jelly to hold the O-ring in position until the
fittings are assembled. To eliminate leakage do not under
or over tighten [Figure 61].
Straight Thread O-ring Fitting
Figure 62
A1852a
Lubricate the O-ring (Item 1) before installing the fitting.
Loosen the nut (Item 2) and install the fitting. Loosen the
nut and install the fitting. Tighten the nut until the washer
(Item 3) [Figure 62] is tight against the surface.
Tubelines And Hoses
Replace any tubelines that are bent or flattened. They will
restrict flow, which will slow hydraulic action and cause
heat.
Replace hoses which show signs of wear, damage or
weather cracked rubber.
Always use two wrenches when loosening and tightening
hose or tubeline fittings.
Tightening The Flare Fitting
Figure 63
TS1619b
Tighten the nut until it makes contact with the seat. Make
a mark across the flats of both the male and female parts
of the connection (Item 1) [Figure 63].
Use the chart below to find the correct tightness needed
(Item 2) [Figure 63]. If the fitting leaks after tightening,
disconnect it and inspect the seat area for damage.
SPECIFICATIONS