Hale RSD User Manual

Page 77

RSD Series Single-Stage PTO Pumps
p/n: 029-0020-92-0

Co rr ec tive M ain te n an ce

❑

Note: Before beginning the removal process, sketch or match-mark (tag or
photograph) the plumbing and component configuration to aid in re-assembly.

Remove necessary body panels and framework to gain access to the
pump compartment and pump and gearbox assembly. Make sure there
is sufficient clearance above the apparatus to remove the gearbox.

Drain oil from the gearbox - remove the magnetic pipe plug. See Sec-
tion 4: Preventive Maintenance, heading “Replace Gearbox Oil” on page
52.

Have a suitable container available to collect fluid. For gearbox capac-
ity, see “Appendix C1: Lube and Sealant Specifications” on page 115.

Also have clean disposable shop rags and oil dry handy. Also discon-
nect cooling tubes from the water manifold and pump, air lines, electrical
switches and tachometer cable as needed.

Disconnect drive shaft, air lines, electrical wiring / switches, tachometer
cable and cooling lines, as necessary from the gearbox.

Connect or position the gearbox to your supporting device and assure
that the gearbox is supported. Also see WARNING ! note found on
page 68.

Remove the four (4) 1/2”-13 screws to separate the upper cover from
the gearbox housing, exposing the back end of the pump shaft assem-
bly. (See Figure 6-3: “Typical RSD Gearbox Removal.”)

Remove the upper cover housing gasket. Clean all gasket material from
mating surfaces before installing a new gasket. Be careful not to score
the finished surfaces.

Bend the tang(s) back on the pump shaft lock washer, then using a
spanner wrench, remove the bearing nut and washer.

With the gearbox adequately supported, remove the six (6) 1/2”-13
screws securing the gearbox housing to the pump housing. Also see
WARNING ! note found on page 68.

Carefully pull the gearbox straight back to slide the assembly from the
pump shaft. Note that the pump gear, spacer (and possibly the outer
bearing) remain on the pump shaft.

10.

Place a temporary cover over the exposed pump shaft and housing
opening to prevent dirt and debris from contaminating the assembly.