Connection Of Service Tool - Komatsu PC88MR-10 Shop Manual

Connection of service tool

Park the machine on a level surface, lower the work equipment to the ground so that it is stable,
and stop the engine.
Turn the battery disconnect switch to OFF position, and remove the key.
a Following service tool kit is used for work with refrigerant R134a.
Symbol
X
a Use the service tool kit for R134a.
Service tool kit X
(1): Gauge manifold
(2): Red high-pressure line charging hose
(3): Blue low-pressure line charging hose
(4): Large diameter quick joint (for high-pressure line)
(5): Small diameter quick joint (for low-pressure line)
(a): Note that the threads are coarse and the hoses are relatively easy to loosen.
Connect the gauge manifold, hoses and other service tools according to the following procedure.
1. Close high-pressure line valve (6) and low-pressure line valve (7) of gauge manifold (1).
2. Connect red high-pressure line charging hose (2) to the gauge manifold (HI side) and blue low-pressure
line charging hose (3) to the gauge manifold (LO side).
3. Connect quick joints (4) and (5) to each hose.
4. Connect quick joints (4) and (5) to service valves (8) and (9) of high- and low-pressure piping respectively.
PC88MR-10
(PC300-K500-061-K-00-A)
Part No.
799-703-1200
80 Appendix

Connection of service tool

Part name
Service tool kit
80-79