JLG Skytrak 6036 Service Manual page 175

Section 9. Hydraulic System
3.00 "
1.47 "
0.06 "
30°
C = 1.054 PLUS 0.000, MINUS 0.002"
D = 1.250" DIAMETER
Fig. 9.40 Bushing Installation Tool
6. The following tools will also be required:
• arbor press
• awl
• steel ball, 1-1/2" diameter
• clean lint free cloths
• deburring tool (an old file with the cutting
teeth ground off)
• machinist's hammer
• soft hammer
• Permatex Aviation Form-A-Gasket No. 3
Non-hardening Sealant or equivalent
• medium grit Carborundum stone
• oil and grease
• snap ring pliers
• prick punch
• scale (1/32" or 1/64" graduations)
• small screwdriver
• torque wrench
• vise with 8" minimum open spread
c. General Repair Precautions
1. To facilitate repair of the pump and before any
work is done, first read and understand all of
the steps used in the disassembly and assem-
bly instructions.
2. The first requirement of good maintenance of
hydraulic equipment is cleanliness. Make sure
you disassemble and assemble your hydraulic
equipment in a clean area.
Model 6036 S/N 9B0499 and Before
0.06 "
32
D
C
30°
GRIND RELIEF ALLOWABLE
MA0811
1/4" DIAMETER DRILL
THROUGH HOLE
C RADIUS
0.015" X 45°
CHAMFER
A = 3-3/8"
B = 4-1/2"
C = 9/16" R
D = 1.065 PLUS 0.000, MINUS 0.002"
E = 1.002 PLUS 0.002, MINUS 0.000"
Fig. 9.41 Special Steel Sleeve
3. If prying off sections becomes necessary, take
extreme care not to mar or damage machined
surfaces. Excessive force while prying can
result in misalignment and serious damage to
parts.
4. Match mark exterior surface of housings
before separating the parts. Align match
marks during assembly.
5. Gears are closely matched. Gears must be
kept together as sets when removed from a
unit. Handle with care to avoid damage to the
journals or teeth. Avoid touching gear jour-
nals. Always replace matched parts as a
set.
6. Do not grip machined surfaces in a vise to
prevent damage to fine surfaces.
7. If parts are difficult to fit during assembly, tap
gently with a soft hammer. Never use an iron
or steel hammer to tap parts.
8. Never hammer bushings into bores; use an
arbor press.
B
A
E
D
MA0821
9-62