TM-9-2320-279-34-3
M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)
TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS DIRECT SUPPORT AND GENERAL SUPPORT, VOLUME 3 OF 3
TM-9-2320-279-34-3 - Page 19 of 717
TM 9-2320-279-34-3
Section Il.
CRANE, SUBFRAME, AND SWING DRIVE
M977, M985, and M984E1 Crane Maintenance Instructions
17-2.
HYDRAULIC HOSES, TUBES, AND FITTINGS REMOVAL/INSTALLATION.
This task covers:
a. Disconnect Quick Couplings
i. Type 3 Clamp and Bracket Removal
b. Connect Quick Couplings
j. Type 3 Clamp and Bracket Installation
c. Disconnect Hydraulic Hoses and Tubes
k. Type 4 Clamp Removal
d. Connect Hydraulic Hoses and Tubes
l. Type 4 Clamp Installation
e. Type 1 Clamp Removal
m. Type 5 Clamp Removal
f. Type 1 Clamp Installation
n. Type 5 Clamp Installation
g. Type 2 Clamp Removal
o. Hydraulic Hose and Tube Removal/Installation
h. Type 2 Clamp Installation
p. Follow-on Maintenance
INITIAL SETUP
Models
Equipment Condition
M977, M985
TM or Para
Condition Description
Test Equipment
TM 9-2320-279-10 Crane in operating position
None
and supported by suitable
Special Tools
lifting device.
TM 9-2320-279-10 Shut off engine.
None
Supplies
Special Environmental Conditions
None
Tags, identification, Item 60, Appendix C
General Safety Instructions
Personnel Required
None
MOS 63W, Wheel vehicle repairer
Level of Maintenance
References
Direct Support
None
NOTE
• Subparagraphs
a
through
n
show
all typical connections and
clamps used on the M977 and
M985 cranes.
• This procedure is for reference
only to show location of hoses,
tubes, and fittings used on the
M977 and M985 cranes. It will
never be necessary to remove all
hydraulic hoses at one time.
Individual procedures will
indicate the area where hoses are
to be removed and installed.
a. Disconnect Quick Couplings.
Push ring (1) away from hose fitting (2) and
pull hose free.
b. Connect Quick Couplings.
Push ring (1) away from hose fitting (2) and push hose in until seated.
Release ring (1) while holding pressure on hose fitting (2).
17-2.1/(1 7-2.2 blank)
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