GMC 1976 ZEO 6083 Maintenance Manual page 547

25-30 FT. LBS.
ENGINE
Figure 7-Pump Installation
REMOVAL OF PUMP (FIGURE 7)
1 . Loosen power steering and Delcotron belts.
2 . Disconnect pressure line and return hose from
pump . (Install caps at both pump fittings to prevent
drainage of oil from pump).
3. Remove power steering pump mounting bolts
and nuts, and upper left venturi bracket . (See figure
7) .
4. Remove power steering pump with adjusting
link attached .
Figure 8-Pulley Removal - Special Tool J-25034
STEERING 9- 1 5
5. Remove adjusting link from pump .
6. Remove pulley from shaft using puller tool
J-25034 (figure 8) .
CAUTION :
Do not hammer pulley offshaft
as this will damage pump .
PUMP DISASSEMBLY
Before disassembly of pump, remove reservoir
filler cap and drain oil from reservoir by inverting the
pump so oil may drain out the filler hole .
After oil is drained from reservoir, cap should be
replaced and the entire pump assembly washed in a
non-toxic solvent to remove all dirt and prevent any
foreign matter from contaminating pump compo-
nents.
CAUTION :
Examine exposed part of drive
shaft. If it is corroded, use crocus cloth to
remove corrosion before disassembling
pump. This will prevent damage to the shaft
bushing.
1 . Clamp front hub of pump in vise so that the
extending portion of shaft is directed downward, be-
ing careful not to clamp vise too tight as this may
distort the bearing (figure 9) .
2. Using proper sized wrenches, remove union
and "O" ring assembly and both mounting studs
Figure 9-Studs & Union Being Removed