Hale RSD - Manual (Page 79)

79 RSD Series Single-Stage PTO Pumps
p/n: 029-0020-92-0
Co rr ec tive M ain te n an ce
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6. Apply a coating of Loctite, then install the lock washer and bearing
nut. Tighten the bearing nut to a snug fit then bend the lock washer
tangs (2) over into the slots in the nut to secure the nut.
7. Install the gearbox cover with gasket. See preceding Step 2. Tighten
the six (6) 1/2”-13 screws in a criss-cross fashion to ensure an EVEN
seal and torque the screws to 57 ft.-lbs. (77 N-m).
8. Connect drive shafts, cooling lines, air hoses, and electrical connec-
tions to gearbox.
9. Fill gearbox with oil. See Section 4: Preventive Maintenance, heading
“Replace Gearbox Oil” on page 52.
10. Reinstall apparatus frame work and body panels previously removed
to gain access to the pump compartment.
11. Test the pump for proper operation per your departmental require-
ments. Note and repair any leaks.
12. Recheck and top off oil levels, then return the apparatus to operation.
6.7 SERVICING THE RSD PUMP
(See Figure 6-4: “RSD Pump Parts Overview,” on page 80.)
RSD series volutes are mounted for either engine rotation (clockwise), as
viewed from the suction inlet, or opposite engine rotation (counterclock-
wise).
Note the direction of flow of the impeller for proper mounting of the volute.
Also see Figure 2-6: “Pump / Engine Rotation” on page 19.
Suction Head
The suction head is secured by twelve (12) 7/16”-14 screws to the volute. It
includes an O-ring seal that must be inspected for cracks, splits, flat spots,
etc. whenever the joint face is disturbed. (See Figure 6-4: “RSD Pump
Parts Overview,” on page 80.)
1. Disconnect the suction, discharge, cooling lines, and any electrical
wiring, if applicable.
2. Match mark the volute and suction head to ensure proper re-alignment
during reassembly, then remove the twelve (12) 7/16”-14 screws.