We repair Denison Pumps.

1. Fit in the barrel (1) with the bores facing
down on a clean area.

Place the hold down spring (3) into barrel counter-
bore.
Put in spring retainer (5) into counter bore and
seat next to spring.
Place the retaining ring (6) into barrel counter-
bore groove. Align retaining ring so that it is fully
seated in groove.
Fix the barrel stop (4) over auxiliary drive
shaft (2). Rotate barrel on side and put the auxiliary
drive shaft and barrel stop into the barrel
spline and hold down spring.

PARTS LIST

Guidelines for Replenishing Circuit Isolation Plug

WARNING
The isolation plug together with this is to be used only if an external filter circuit is not offered DO NOT operate this unit with the isolation plug put in unless an outside line has been provided.

When the outer filter circuit is not used, dispose of the isolation plug.

When the outside filter circuit is used, fit the isolation plug under the plug in the face of the port block. Use a 3/16″ hex wrench, 4″ minimum in length. Insert the isolation plug and tighten to 80-120 in./lbs. torque.

Warning

Filter should have a bypass and bypass indicator and Hydrostatic Transmission Service,LLC which offers Denison recommends that it be sized four times for projected flow.

HOUSING ASSEMBLY S13-43962

1. Place housing (1) on a flat area with the
large open end up.
2. Push the bearing (2) into the housing bore
until seated. IT IS NOT RECOMMENDED THAT HAMMERING OR BEATING THE
BEARING INTO PLACE.
Put housing on side and install roll pin (3)
into the hole in control cover pad. Roll pin
ought to be installed 3/8″ under pad surface. Place
1. two dowel pins (4) in the blind holes in the same pad.
4. DO this (step 3) on the opposite side of the
housing.
5. Fit together O-ring (5) and plug (6) in the bottom of
housing. Roll pins (3) are in the bottom half of
the housing.

PARTS LIST – Housing Assembly S13-43962

Caution
Be sure the Loose Pin is retained in the Port when putting together the System Pressure Gage

Replenishment—None

Servo—160 psi -(-case psi -(-62.5 psi per 1000 system pressure.
Case—40 psi max.

USUAL PRESSURES
Closed Loop

Open Loop

Replenishment—180-220 psi + Case Pressure.
Servo—300 psi + case
psi +40 psi per 1000 system pressure.

Case—75 psi continuous 125 psi intermittent