6-6. FIRE PUMP - Continued
b. Disassembly of Transmission.
Out of chassis overhaul will require supporting the transmission
initially in an upside down position, possibly attaching it direct to
an engine overhaul stand at the face of the cap that bolts to the
pump, or making up an adapter to allow this connection to an
overhaul stand. Another consideration would be to support it on
suitable supports on the underside of the flange of the mid-
section, first removing the flange bolts at the support areas.
Remove lube system hoses by disconnecting hoses (1 and 2) at swivel fittings (3), tee (4), nipple
(5) and elbows (6). Remove sump oil strainer (7) from bottom section of case (8).
Remove self-locking cap screws (9) and lockwashers (10) attaching drive and coupling shaft
housings (11 and 12) to bottom section (8). Loosen cap screws (13) and washers (14) attaching
housings to mid-section (15).
Remove cap screws (16), bolts (17), nuts (18), and lockwashers (109), attaching bottom section (8)
to mid-section (15). Drive dowels (19) out of bottom section flange. Remove bottom section (8).
Rotate drive line chain (21) until removable long connecting pin (22) and short connecting pin (23)
on the chain is visible at the drive sprocket (24). The removable connecting pin (22) has a spiral
pin (25) in each end holding it in place.
Remove one spiral pin (25), tap both the long (22) and short (23) connecting pins out of the chain
links. Disengage chain (21) from the sprocket drive and driven sprockets (24 and 26) and remove
Remove tachometer driven gear sleeve (28) and driven gear (29), and bushing (30) from drive
shaft housing (11).
Remove the remaining cap screws (13) and lockwashers (14) attaching the coupling shaft housing
(12) to the mid-section (15).
Remove coupling shaft housing (12) and shims (31). Note number and thickness of shims for
Coupling shaft (32) and its associated parts may come with the
(9) Remove the coupling shaft assembly (32) if it did not come out when removing housing (31).