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The annual pump test is defined by the original pump performance specification and testing. Wheth-
er EN, NFPA, or other standards were used to specify the apparatus construction; using the same
testing annually compared to the original specification data provides proactive information for pump
maintenance. Utilize test durations long enough to ensure the engine, drivetrain, and pump are all in
proper working order.
7.4.4 Triennial Pump Maintenance
The gearbox is filled with 1 to 1.5 Qt (to the middle of the sight glass) of SAE 50 long-life synthetic
manual transmission fluid of type [API MT-1]. The fluid must be changed once every three (3) years
(36 months) at a minimum (more often if conditions indicate). Use ONLY lubricants listed in para-
graph 7.4.4.1.1, Recommended Gearbox Lubricants. Lubricate the gearbox as instructed in para-
graph 7.4.4.1, Fluid Change Procedure.
7.4.4.1 Fluid Change Procedure
ALWAYS USE PROPER PPE. OIL MAY BE TOXIC. DISPOSE OF OIL PROPERLY PER AHJ
GUIDELINES.
Refer to Table 4 for a list of the tools and consumables required to change the gearbox fluid.
Table 4. Fluid Change Tools And Consumables List
PPE (for Handling Oil) None Shop Rag(s) (As Required)
9/16 in wrench
(or 8-Point Socket And Ratchet)
SAE 50 Long-life synthetic manual trans-
mission fluid (API MT-1) (Max 1.5 Qt)
Oil Safe Catch Container (2 Qt or larger)
Funnel (Optional)
A. Locate magnetic Oil Drain Plug (See FSG–PL–01481 found on the flash drive provid-
ed with the pump or on the Hale website [www.haleproducts.com].)
(See Figure 10. for an example location.)
Figure 10. Gearbox Drain
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