Maintenance
2138−1/A2
Winterthur Gas & Diesel Ltd.
3/ 5
4. Lubricating Quill − Function Check
4.1 General
You do a function check to make sure that the non-return valve (3, Fig. 3) operates
correctly. The pressure that opens the non-return valve is 5.0 bar.
During the function check, keep the lubricating quill (2) in a horizontal position.
For the function check, use an oil with a viscosity as given in the specifications that
follow:
D SAE 50 at 40_C (approx. 200 cSt)
D SAE 30 at 25_C (approx. 190 cSt).
4.2 Procedure
1) If necessary, remove the union (1) on the lubricating quill (2).
2) Connect the HP hose (94935) to the nipple (94934I).
3) Attach the nipple (94934I) to the lubricating quill (2).
4) Hold the lubricating quill (2) up and operate the pump until oil that flows has no
air.
5) Open the relief valve (RV) and decrease the pressure to 2.0 bar.
6) Close the relief valve (RV).
7) Hold the lubricating quill (2) in a horizontal position.
8) Operate the pump and increase the pressure in steps of 1.0 bar until the
non-return valve (3) opens.
9) Record the pressure shown on the pressure gauge (94934H).
Note: The minimum permitted pressure to open the non-return valve is 4.25 bar.
If necessary, replace the defective lubricating quill (2).
2
9493594931
3
94934H
WCH00112
94934I
RV
Fig. 3
1
2015
Lubricating Quill
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