TM 5-3805-298-23-2
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HYDRAULIC HOSE REPAIR INSTRUCTIONS
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Introduction
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Most hydraulic hoses are removed and installed in the same manner. This work package contains examples of the
different styles of fittings that may be encountered when working on a 924H Wheel Loader, followed by a hydraulic
hose index. The hydraulic hose index contains the part number of the hose, a description of the hose, major
equipment conditions that need to be met prior to servicing the hose, and reference to TM 5-3805-298-24P
(RPSTL) which identifies the figure and item number.
To repair/replace a particular hydraulic hose, find the hose and part number in TM 5-3805-298-24P (RPSTL).
Return to this work package for fitting removal and installation and additional required information, such as
equipment conditions, which are listed in the index.
NOTE
Cap or plug line, hose, and fittings to protect against contamination.
Tag and mark line, hose, and fittings and note hose routing to aid installation.
Use container to catch any fluid that may drain from hydraulic system. Dispose of fluid IAW
local policy and ordinances. Ensure all spills are cleaned up.
A. Tube Nut and Fittings EXAMPLE.
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Removal
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1. Loosen tube nut (Figure 1, Item 2) and remove hose (Figure 1, Item 1) and O-ring (Figure 1, Item 3) from fitting
(Figure 1, Item 4). Discard O-ring.
2. If leaking, remove fitting (Figure 1, Item 4) and O-ring (Figure 1, Item 5) from machine. Discard O-ring.
3. Loosen tube nut (Figure 1, Item 8) and remove tee fitting (Figure 1, Item 10) and O-ring (Figure 1, Item 9) from
tee fitting (Figure 1, Item 6). Discard O-ring.
4. Loosen jam nut (Figure 1, Item 7) and remove tee fitting (Figure 1, Item 6) and O-ring (Figure 1, Item 11) from
machine. Discard O-ring.
Installation
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1. Install new O-ring (Figure 1, Item 11), tee fitting (Figure 1, Item 6), and jam nut (Figure 1, Item 7) on machine.
2. Install new O-ring (Figure 1, Item 9) and tee fitting (Figure 1, Item 10) on tee fitting (Figure 1, Item 6). Discard
O-ring.
3. If removed, install new O-ring (Figure 1, Item 5) and fitting (Figure 1, Item 4) on machine.
4. Install new O-ring (Figure 1, Item 3), hose (Figure 1, Item 1), and tube nut (Figure 1, Item 2) on fitting (Figure 1,
Item 4).
B. Quick Disconnect/ Connect Fitting EXAMPLE.
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Removal
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NOTE
There are no serviceable seals on a quick disconnect/connect fitting. If leaks are present
fittings should be replaced.
1. Insert removal tool between rubber collar (Figure 1, Item 12) and fitting (Figure 1, Item 13), pushing the rubber
collar into the component.
2. Disconnect hose (Figure 1, Item 14) from machine.
3. Remove removal tool from between rubber collar (Figure 1, Item 12) and fitting (Figure 1, Item 13).
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