Power Takeoff (PTO) and Hydraulic Pump Maintenance Instructions (Cont)
HYDRAULIC PUMP REPAIR (M984E1) (CONT).
There are two models of hydraulic
pumps. Model B has four additional
preformed packings and different
wear plate configuration.
Lubricate all parts with oil before
Install eight studs (1) in inlet port
section (2). Tighten studs to 25 to 35
lb-ft (34 to 48 Nm).
Model A has two studs. Do step (2) for
Model A. Do step 5.1 for Model B.
Install two studs (3) in inlet port
section (2). Tighten studs to 25 to
35 lb-ft (34 to 48 Nm).
Install preformed packing (5).
Install coupling (6).
Install center section (7).
Do step (5.1) for Model B.
(5.1) Install preformed packing (7.1) on center
Coat seal glands with small amounts of petroleum jelly to hold in place in seal
retainers during assembly.
Install seal gland (8), seal retainer (9), and rear wear plate (10), bronze end up.
19-22 Change 3